Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 137 393.949 242.649 20.731 5 979 15 180 440 555 662 810 940 960 Gender Male 96 435.271 243.979 24.901 10 979 20 245 473 598 765 840 960 979 Gender Female 41 297.195 212.415 33.174 5 780 15 90 280 495 550 590 780 780 Age ( years) * 4 568.75 394.723 197.362 90 940 90 248 623 890 940 940 940 940 Age ( years) 1 4 2 200 70.711 50 150 250 150 150 200 250 250 250 250 250 Age ( years) 5 11 4 33.75 11.087 5.543 20 45 20 25 35 42.5 45 45 45 45 Age ( years) 12 17 2 207.5 166.17 117.5 90 325 90 90 208 325 325 325 325 325 Age ( years) 18 64 121 409.678 230.934 20.994 5 979 15 240 450 560 660 793 850 960 Age ( years) > 64 4 293.75 289.464 144.732 10 610 10 50 278 538 610 610 610 610 Race White 113 397.903 235.199 22.126 5 979 15 210 450 555 660 780 940 960 Race Black 13 379.231 286.501 79.461 10 850 10 85 405 510 810 850 850 850 Race Some Others 1 405 * * 405 405 405 405 405 405 405 405 405 405 Race Hispanic 9 314.778 266.161 88.72 30 793 30 95 245 440 793 793 793 793 Race Refused 1 840 * * 840 840 840 840 840 840 840 840 840 840 Hispanic No 121 388.702 242.092 22.008 5 979 15 180 405 550 660 795 940 960 Hispanic Yes 12 361.083 242.06 69.877 30 793 30 138 370 510 660 793 793 793 Hispanic DK 2 585 35.355 25 560 610 560 560 585 610 610 610 610 610 Hispanic Refused 2 717.5 173.241 122.5 595 840 595 595 718 840 840 840 840 840 Employment * 8 118.75 113.916 40.275 20 325 20 35 67.5 200 325 325 325 325 Employment Full Time 97 440.732 237.56 24.121 10 979 15 300 480 585 690 815 960 979 Employment Part Time 21 341.19 188.235 41.076 30 795 115 240 330 435 590 610 795 795 Employment Not Employed 9 250.556 218.567 72.856 5 630 5 95 150 360 630 630 630 630 Employment Refused 2 425 586.899 415 10 840 10 10 425 840 840 840 840 840 Education * 11 234.091 266.306 80.294 20 840 20 40 150 325 610 840 840 840 Education < High School 12 460.417 181.727 52.46 115 795 115 330 495 558 615 795 795 795 Education High School Graduate 50 409.6 273.717 38.709 5 979 15 150 463 619 735 940 969.5 979 Education < College 29 368.897 237.58 44.117 10 850 10 160 405 510 660 765 850 850 Education College Graduate 22 405.682 184.225 39.277 90 815 150 240 375 540 595 645 815 815 Education Post Graduate 13 443.692 218.128 60.498 10 793 10 360 500 585 630 793 793 793 Census Region Northeast 22 405.545 193.817 41.322 15 765 90 320 398 540 660 662 765 765 Census Region Midwest 26 418.577 250.898 49.205 10 940 13 180 473 610 690 780 940 940 Census Region South 58 379.707 233.179 30.618 5 979 10 150 420 540 619 810 815 979 Census Region West 31 391.71 289.538 52.003 10 960 20 90 405 630 795 850 960 960 Day Of Week Weekday 121 401.843 242.472 22.043 5 979 15 210 450 560 660 810 940 960 Day Of Week Weekend 16 334.25 243.28 60.82 13 795 13 97.5 340 495 690 795 795 795 Season Winter 42 390.81 241.456 37.257 10 960 30 175 405 550 660 765 960 960 Season Spring 34 361.324 236.996 40.644 10 840 30 150 360 525 660 815 840 840 Season Summer 41 400.902 262.9 41.058 5 979 13 210 450 570 690 810 979 979 Season Fall 20 441.75 219.411 49.062 10 793 12.5 285 490 620 661 727.5 793 793 Asthma No 124 393.218 237.29 21.309 5 960 20 180 440 553 660 795 850 940 Asthma Yes 13 400.923 300.15 83.247 10 979 10 240 320 590 793 979 979 979 Angina No 133 397.677 243.291 21.096 5 979 15 190 440 555 662 810 940 960 Angina Yes 3 266.667 255.799 147.686 90 560 90 90 150 560 560 560 560 560 Angina DK 1 280 * * 280 280 280 280 280 280 280 280 280 280 Bronchitis/ Emphysema No 131 397.13 242.048 21.148 5 979 20 180 440 555 662 810 940 960 Bronchitis/ Emphysema Yes 5 333.4 299.365 133.88 10 619 10 13 460 565 619 619 619 619 Bronchitis/ Emphysema DK 1 280 * * 280 280 280 280 280 280 280 280 280 280 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 115 Table 15 99. Statistics for 24 Hour Cumulative Number of Minutes Spent Indoors at the Dry Cleaners Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 34 82.029 151.651 26.008 2 515 5 5 10 90 325 500 515 515 Gender Male 11 105.545 166.006 50.053 2 515 2 5 10 103 325 515 515 515 Gender Female 23 70.783 146.839 30.618 5 500 5 5 10 35 300 485 500 500 Age ( years) * 1 485 * * 485 485 485 485 485 485 485 485 485 485 Age ( years) 1 4 2 20 21.213 15 5 35 5 5 20 35 35 35 35 35 Age ( years) 18 64 28 61.036 120.923 22.852 2 515 5 5 10 55 300 325 515 515 Age ( years) > 64 3 185 273.359 157.824 10 500 10 10 45 500 500 500 500 500 Race White 25 70.72 143.744 28.749 2 515 5 5 10 35 300 485 515 515 Race Black 7 131.429 198.95 75.196 5 500 5 10 20 325 500 500 500 500 Race Some Others 1 10 * * 10 10 10 10 10 10 10 10 10 10 Race Hispanic 1 91 * * 91 91 91 91 91 91 91 91 91 91 Hispanic No 31 83.806 158.483 28.464 2 515 5 5 10 45 325 500 515 515 Hispanic Yes 3 63.667 46.479 26.835 10 91 10 10 90 91 91 91 91 91 Employment * 2 20 21.213 15 5 35 5 5 20 35 35 35 35 35 Employment Full Time 25 83.12 151.81 30.362 2 515 5 5 10 90 325 485 515 515 Employment Part Time 1 500 * * 500 500 500 500 500 500 500 500 500 500 Employment Not Employed 6 28.5 33.934 13.853 5 91 5 10 10 45 91 91 91 91 Education * 2 20 21.213 15 5 35 5 5 20 35 35 35 35 35 Education < High School 4 234 209.191 104.595 45 500 45 68 196 400 500 500 500 500 Education High School Graduate 8 84.125 165.008 58.339 5 485 5 13 17.5 62 485 485 485 485 Education < College 6 146.333 220.347 89.956 5 515 5 10 11.5 325 515 515 515 515 Education College Graduate 12 13.5 24.247 6.999 2 90 2 5 5 10 10 90 90 90 Education Post Graduate 2 50 63.64 45 5 95 5 5 50 95 95 95 95 95 Census Region Northeast 8 110 187.293 66.218 5 485 5 5 10 180 485 485 485 485 Census Region Midwest 10 19.1 30.101 9.519 5 103 5 5 7.5 20 61.5 103 103 103 Census Region South 8 197 211.975 74.945 15 515 15 30 93 400 515 515 515 515 Census Region West 8 17.75 29.359 10.38 2 90 2 5 10 10 90 90 90 90 Day Of Week Weekday 23 93.957 172.77 36.025 2 515 5 5 10 90 485 500 515 515 Day Of Week Weekend 11 57.091 95.985 28.941 5 325 5 5 10 95 103 325 325 325 Season Winter 12 74.583 158.092 45.637 5 485 5 5 10 13 325 485 485 485 Season Spring 4 44.5 41.685 20.843 10 103 10 15 32.5 74 103 103 103 103 Season Summer 8 20.25 32.012 11.318 2 95 2 5 5 23 95 95 95 95 Season Fall 10 155.4 205.739 65.061 5 515 5 13 55 300 507.5 515 515 515 Asthma No 32 86.688 155.244 27.443 2 515 5 5 11.5 91 325 500 515 515 Asthma Yes 2 7.5 3.536 2.5 5 10 5 5 7.5 10 10 10 10 10 Angina No 33 83.909 153.599 26.738 2 515 5 5 10 90 325 500 515 515 Angina Yes 1 20 * * 20 20 20 20 20 20 20 20 20 20 Bronchitis/ Emphysema No 33 84.061 153.532 26.726 2 515 5 5 10 90 325 500 515 515 Bronchitis/ Emphysema Yes 1 15 * * 15 15 15 15 15 15 15 15 15 15 Note: A "*" Signifies missing data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 116 August 1997 Table 15 100. Statistics for 24 Hour Cumulative Number of Minutes Spent Indoors at a Bar/ Nightclub/ Bowling Alley Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 352 175.818 132.206 7.047 3 870 30 90 150 222.5 328 487 570 615 Gender Male 213 174.319 133.151 9.123 5 870 30 90 140 220 340 479 568 615 Gender Female 139 178.115 131.191 11.127 3 630 30 95 150 225 300 530 600 605 Age ( years) * 4 158.75 98.011 49.006 75 300 75 98 130 220 300 300 300 300 Age ( years) 5 11 4 98.75 57.5 28.75 45 170 45 53 90 145 170 170 170 170 Age ( years) 12 17 8 151.25 77.678 27.463 50 270 50 80 160 205 270 270 270 270 Age ( years) 18 64 313 180.192 136.706 7.727 3 870 30 90 150 225 370 498 590 615 Age ( years) > 64 23 141.217 85.243 17.774 5 328 30 75 135 180 240 325 328 328 Race White 297 173.623 132.592 7.694 3 870 30 90 140 220 328 487 590 630 Race Black 25 205.44 126.551 25.31 50 540 60 120 180 240 417 498 540 540 Race Asian 8 169.875 153.311 54.204 5 479 5 38 175 225 479 479 479 479 Race Some Others 7 197.286 187.607 70.909 70 615 70 110 135 185 615 615 615 615 Race Hispanic 10 121.3 52.326 16.547 5 198 5 105 117.5 160 179 198 198 198 Race Refused 5 246.6 127.153 56.864 73 410 73 180 270 300 410 410 410 410 Hispanic No 327 177.131 134.457 7.435 3 870 30 90 150 225 340 489 590 615 Hispanic Yes 20 144.9 85.08 19.024 5 440 38 110 120 160 221.5 342.5 440 440 Hispanic DK 2 142.5 31.82 22.5 120 165 120 120 142.5 165 165 165 165 165 Hispanic Refused 3 261 171.852 99.219 73 410 73 73 300 410 410 410 410 410 Employment * 12 133.75 73.55 21.232 45 270 45 60 135 177.5 225 270 270 270 Employment Full Time 223 182.439 138.308 9.262 5 870 30 90 150 228 340 525 600 630 Employment Part Time 43 201.233 155.454 23.706 5 615 45 90 150 270 455 520 615 615 Employment Not Employed 70 146.3 97.375 11.639 3 479 30 73 122.5 180 255 328 462 479 Employment Refused 4 176.25 115.136 57.568 45 300 45 83 180 270 300 300 300 300 Education * 13 146.538 84.172 23.345 45 300 45 60 150 185 270 300 300 300 Education < High School 28 218.036 170.225 32.17 60 870 75 120 174.5 235 420 568 870 870 Education High School Graduate 117 177.778 130.078 12.026 3 630 25 90 150 225 360 489 540 570 Education < College 95 205.274 152.829 15.68 5 650 30 105 180 240 462 590 615 650 Education College Graduate 55 141.764 92.766 12.509 10 417 20 75 120 205 265 340 410 417 Education Post Graduate 44 131.364 90.209 13.599 30 400 30 60 110 177.5 265 290 400 400 Census Region Northeast 83 179.337 137.039 15.042 5 650 45 89 140 240 328 489 630 650 Census Region Midwest 88 169.818 126.238 13.457 5 615 30 90 147.5 211.5 299 487 568 615 Census Region South 91 175.714 132.028 13.84 3 870 35 90 148 225 270 462 570 870 Census Region West 90 178.544 135.533 14.286 5 605 30 85 152.5 225 407 479 590 605 Day Of Week Weekday 192 167.458 133.473 9.633 5 650 30 80 120 210 340 520 590 605 Day Of Week Weekend 160 185.85 130.378 10.307 3 870 45 108 165 228 321.5 474.5 568 630 Season Winter 93 182.667 131.674 13.654 5 650 40 87 150 240 410 455 560 650 Season Spring 83 186.12 147.597 16.201 5 870 30 90 140 230 380 498 570 870 Season Summer 99 160.313 130.672 13.133 3 630 30 75 120 189 285 530 605 630 Season Fall 77 176.377 117.154 13.351 15 615 30 100 165 220 299 410 600 615 Asthma No 331 176.308 133.715 7.35 3 870 30 90 150 225 340 487 590 615 Asthma Yes 18 169.444 108.978 25.686 60 530 60 105 135 210 270 530 530 530 Asthma DK 3 160 124.9 72.111 60 300 60 60 120 300 300 300 300 300 Angina No 345 176.98 132.759 7.148 3 870 30 90 150 225 340 487 590 615 Angina Yes 5 82 47.249 21.131 5 120 5 75 90 120 120 120 120 120 Angina DK 2 210 127.279 90 120 300 120 120 210 300 300 300 300 300 Bronchitis/ Emphysema No 333 177.273 133.27 7.303 3 870 30 90 150 225 340 487 590 615 Bronchitis/ Emphysema Yes 17 148.588 108.499 26.315 50 530 50 110 120 175 210 530 530 530 Bronchitis/ Emphysema DK 2 165 190.919 135 30 300 30 30 165 300 300 300 300 300 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 117 Table 15 101. Statistics for 24 Hour Cumulative Number of Minutes Spent Indoors at a Restaurant Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 2059 94.539 119.93 2.643 1 925 10 30 60 95 185 351 548 660 Gender Male 986 87.498 114.17 3.6358 1 900 10 30 60 90 160 305 550 660 Gender Female 1073 101.01 124.69 3.8065 1 925 10 40 60 105 230 380 540 670 Age ( years) * 30 126.13 138.22 25.2349 15 495 30 45 60 150 397.5 490 495 495 Age ( years) 1 4 61 62.705 47.701 6.1075 4 330 10 35 55 85 115 120 130 330 Age ( years) 5 11 84 56.69 38.144 4.1618 5 180 10 30 45 85 120 120 140 180 Age ( years) 12 17 122 69.836 78.361 7.0945 2 455 10 30 45 65 165 250 325 360 Age ( years) 18 64 1503 101.21 131.22 3.3846 1 925 10 30 60 105 211 400 570 675 Age ( years) > 64 259 83.583 83.517 5.1895 3 750 19 45 60 90 150 215 315 520 Race White 1747 91.658 114.69 2.744 1 925 10 30 60 95 175 320 535 640 Race Black 148 102.82 141.28 11.613 3 805 5 30 60 95 295 430 555 735 Race Asian 37 81.297 78.948 12.979 15 480 18 30 60 90 135 200 480 480 Race Some Others 30 145.17 194.83 35.5705 5 765 10 45 82.5 120 432.5 750 765 765 Race Hispanic 78 123 156.78 17.7518 10 700 15 40 60 110 375 585 660 700 Race Refused 19 123.84 127.64 29.2833 20 480 20 30 70 210 330 480 480 480 Hispanic No 1911 92.945 117.6 2.6901 1 925 10 30 60 95 180 330 542 645 Hispanic Yes 129 116.7 147.95 13.0261 1 765 15 40 60 115 360 435 660 700 Hispanic DK 5 76 134.32 60.0708 5 315 5 10 10 40 315 315 315 315 Hispanic Refused 14 114.5 134.74 36.0117 30 480 30 30 60 90 330 480 480 480 Employment * 263 62.251 57.907 3.5707 2 455 10 30 45 80 120 140 273 330 Employment Full Time 1063 105.48 142.37 4.3668 1 925 10 35 60 105 235 485 630 735 Employment Part Time 208 122.61 144.83 10.0423 1 805 5 32.5 65 122.5 320 441 595 660 Employment Not Employed 515 76.33 61.418 2.7064 3 490 15 40 60 90 145 195 260 315 Employment Refused 10 135 133.52 42.223 30 425 30 60 82.5 135 377.5 425 425 425 Education * 299 72.177 79.595 4.6031 1 548 10 30 50 85 130 250 360 480 Education < High School 132 134.77 171.84 14.9567 5 925 10 30 60 151.5 375 535 700 750 Education High School Graduate 590 99.439 136.32 5.612 3 910 10 35 60 90 202.5 435 645 680 Education < College 431 94.935 114.88 5.5338 1 770 10 35 60 105 180 340 550 640 Education College Graduate 359 89.515 104.13 5.4957 1 765 10 35 60 100 165 295 490 570 Education Post Graduate 248 95.012 109.37 6.9452 3 765 15 40 60 115 180 260 560 675 Census Region Northeast 409 94.379 113.64 5.619 2 765 15 35 60 100 210 330 507 585 Census Region Midwest 504 96.895 120.86 5.3833 1 805 10 30 60 105 190 340 560 675 Census Region South 680 92.666 125.1 4.7972 2 910 10 30 60 90 194.5 365 550 650 Census Region West 466 94.863 116.88 5.4145 1 925 10 30 60 110 175 375 535 640 Day Of Week Weekday 1291 97.338 128.83 3.5855 1 925 10 30 60 93 210 377 555 700 Day Of Week Weekend 768 89.833 103.16 3.7224 1 770 10 36 60 105 155 280 510 620 Season Winter 524 97.735 125.69 5.491 3 875 15 35 60 105 178 351 595 685 Season Spring 559 91.642 109.7 4.6399 2 925 10 35 60 95 180 360 505 555 Season Summer 556 95.121 123.03 5.2177 1 910 10 30 60 94 210 360 555 675 Season Fall 420 93.636 121.74 5.9401 1 900 10 30 60 95 185 325 540 653 Asthma No 1903 94.081 117.41 2.6915 1 910 10 35 60 100 180 330 545 653 Asthma Yes 150 96.267 143.56 11.7219 4 925 10 30 45.5 90 237.5 485 590 670 Asthma DK 6 196.33 220.89 90.1782 30 480 30 30 79 480 480 480 480 480 Angina No 1998 94.926 120.73 2.701 1 925 10 30 60 100 190 355 550 660 Angina Yes 50 68.98 53.608 7.5813 3 340 15 45 60 90 105 120 286 340 Angina DK 11 140.27 171.27 51.6393 30 480 30 30 70 120 480 480 480 480 Bronchitis/ Emphysema No 1945 93.746 117.67 2.668 1 910 10 30 60 97 180 335 548 653 Bronchitis/ Emphysema Yes 104 96.077 130.13 12.7602 5 925 15 30 60 90 235 360 500 620 Bronchitis/ Emphysema DK 10 232.8 288.24 91.1492 10 875 10 30 79 480 677.5 875 875 875 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 118 August 1997 Table 15 102. Statistics for 24 Hour Cumulative Number of Minutes Spent Indoors at School Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 1224 343.35 179.099 5.119 1 995 10 210 395 454 540 585 660 723 Gender Male 581 358.599 167.7 6.957 1 995 30 255 400 450 540 600 690 778 Gender Female 643 329.572 187.875 7.409 1 855 5 180 390 455 540 582 640 683 Age ( years) * 18 314.056 230.927 54.43 5 713 5 165 247.5 520 625 713 713 713 Age ( years) 1 4 43 288.465 217.621 33.187 5 665 10 60 269 500 580 595 665 665 Age ( years) 5 11 302 396.308 109.216 6.285 5 665 170 365 403 445 535 565 625 640 Age ( years) 12 17 287 402.551 125.512 7.409 15 855 120 383 420 450 500 565 710 778 Age ( years) 18 64 550 295.422 207.294 8.839 1 995 5 104 300 460 552.5 612 683 785 Age ( years) > 64 24 187.708 187.012 38.174 2 585 3 45 120 327.5 480 510 585 585 Race White 928 348.525 180.458 5.924 1 995 10 212.5 400 458 545 600 665 723 Race Black 131 339.809 169.282 14.79 2 855 15 230 390 445 510 580 624 645 Race Asian 39 332.385 179.918 28.81 5 840 20 190 365 450 560 580 840 840 Race Some Others 36 363.583 155.557 25.926 10 820 105 272.5 366 457.5 502 598 820 820 Race Hispanic 76 294.039 175.697 20.154 2 565 10 142.5 362.5 432 495 525 540 565 Race Refused 14 279.714 221.268 59.136 5 681 5 60 260 440 625 681 681 681 Hispanic No 1082 344.924 179.58 5.459 1 995 10 210 395 455 540 598 665 730 Hispanic Yes 127 333.016 173.803 15.423 2 820 15 200 390 445 500 565 600 630 Hispanic DK 5 293 244.672 109.42 3 562 3 65 415 420 562 562 562 562 Hispanic Refused 10 329.5 180.053 56.938 5 625 5 200 350 445 537.5 625 625 625 Employment * 616 390.294 130.206 5.246 5 855 115 365 410 450 525 570 640 665 Employment Full Time 275 331.269 222.021 13.388 1 995 5 115 405 510 575 625 690 755 Employment Part Time 138 280.891 174.844 14.884 1 800 10 160 285 412 480 537 660 683 Employment Not Employed 190 258.674 199.529 14.475 1 855 5 60 262.5 410 527.5 572 778 840 Employment Refused 5 166 179.074 80.084 5 440 5 5 180 200 440 440 440 440 Education * 679 388.943 132.842 5.098 5 855 100 360 410 450 525 580 640 710 Education < High School 24 233.333 179.648 36.67 1 540 2 30 297.5 373.5 460 465 540 540 Education High School Graduate 114 186.649 193.608 18.133 1 785 4 20 107.5 295 480 580 645 690 Education < College 173 281.41 209.872 15.956 1 995 5 120 255 425 550 640 820 855 Education College Graduate 93 300.43 208.704 21.642 1 755 5 115 320 470 540 580 730 755 Education Post Graduate 141 373.525 193.443 16.291 1 683 15 250 442 510 575 615 655 680 Census Region Northeast 261 345.724 181.522 11.236 1 995 11 210 385 455 535 620 710 855 Census Region Midwest 290 334.445 176.652 10.373 1 730 10 180 390 440 530 585 645 683 Census Region South 427 354.037 178.547 8.641 1 855 10 235 415 462 540 575 640 755 Census Region West 246 332.78 180.277 11.494 1 820 15 195 377.5 440 555 595 681 713 Day Of Week Weekday 1179 346.838 177.477 5.169 1 995 10 222 395 455 540 585 655 723 Day Of Week Weekend 45 251.978 198.543 29.597 20 820 40 105 180 360 555 632 820 820 Season Winter 392 369.298 164.363 8.302 1 855 20 285 405 457 545 600 680 710 Season Spring 353 355.057 165.488 8.808 1 855 12 250 400 455 535 575 636 713 Season Summer 207 316.763 196.364 13.648 2 995 10 125 365 445 557 585 640 723 Season Fall 272 310.996 195.332 11.844 1 855 5 120 365 445 540 595 660 778 Asthma No 1095 342.779 179.195 5.415 1 995 10 200 390 455 540 585 660 723 Asthma Yes 124 350.669 178.785 16.055 1 855 10 250 401.5 445 535 605 645 800 Asthma DK 5 287 190.676 85.273 5 445 5 180 365 440 445 445 445 445 Angina No 1209 344.629 178.874 5.144 1 995 10 210 395 455 540 595 660 723 Angina Yes 9 205.778 169.545 56.515 15 510 15 90 180 275 510 510 510 510 Angina DK 6 292.167 178.908 73.039 5 480 5 180 324 440 480 480 480 480 Bronchitis/ Emphysema No 1175 344.826 178.845 5.217 1 995 10 212 395 455 540 595 660 730 Bronchitis/ Emphysema Yes 42 306.714 188.249 29.047 3 632 10 120 377.5 444 465 580 632 632 Bronchitis/ Emphysema DK 7 315.429 163.691 61.869 5 440 5 180 378 440 440 440 440 440 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 119 Table 15 103. Statistics for 24 Hour Cumulative Number of Minutes Spent Indoors at a Plant/ Factory/ Warehouse Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 383 450.896 204.367 10.443 2 997 30 350 510 568 670 705 770 855 Gender Male 271 460.458 205.102 12.459 2 997 30 365 515 575 675 720 780 870 Gender Female 112 427.759 201.609 19.05 5 820 15 314.5 510 555 600 675 705 720 Age ( years) * 6 405.667 304.05 124.13 30 780 30 120 414.5 675 780 780 780 780 Age ( years) 1 4 1 20 * * 20 20 20 20 20 20 20 20 20 20 Age ( years) 5 11 2 107.5 123.744 87.5 20 195 20 20 107.5 195 195 195 195 195 Age ( years) 12 17 4 108 136.404 68.202 10 307 10 20 57.5 196 307 307 307 307 Age ( years) 18 64 353 463.683 196.321 10.449 5 997 30 385 520 570 670 705 770 855 Age ( years) > 64 17 347.765 210.909 51.153 2 705 2 180 450 495 550 705 705 705 Race White 322 451.789 201.135 11.209 5 890 30 355 517.5 568 650 690 770 840 Race Black 32 466.438 172.559 30.504 2 750 30 382.5 497.5 550 675 720 750 750 Race Asian 3 263.333 378.462 218.51 30 700 30 30 60 700 700 700 700 700 Race Some Others 6 585.333 156.91 64.058 310 780 310 565 591 675 780 780 780 780 Race Hispanic 15 385.8 231.348 59.734 5 765 5 230 435 515 760 765 765 765 Race Refused 5 440.4 387.419 173.26 30 997 30 115 520 540 997 997 997 997 Hispanic No 350 454.137 202.78 10.839 2 997 30 365 512.5 570 666.5 700 770 855 Hispanic Yes 26 419.615 213.155 41.803 5 765 15 240 482.5 550 675 760 765 765 Hispanic DK 2 425 162.635 115 310 540 310 310 425 540 540 540 540 540 Hispanic Refused 5 397 314.833 140.8 30 780 30 115 520 540 780 780 780 780 Employment * 7 95.286 113.83 43.024 10 307 10 20 30 195 307 307 307 307 Employment Full Time 333 481.417 185.222 10.15 5 997 50 440 525 580 675 720 780 855 Employment Part Time 23 359.87 170.619 35.577 40 585 45 240 390 505 527 535 585 585 Employment Not Employed 19 179.316 221.341 50.779 2 705 2 25 60 295 640 705 705 705 Employment Refused 1 30 * * 30 30 30 30 30 30 30 30 30 30 Education * 13 184 234.182 64.95 10 780 10 20 85 270 510 780 780 780 Education < High School 38 491.237 195.919 31.782 2 855 5 435 525 600 705 765 855 855 Education High School Graduate 190 465.374 188.699 13.69 5 997 30 380 520 565 667.5 705 760 890 Education < College 85 450.494 199.674 21.658 15 870 40 375 510 565 635 680 820 870 Education College Graduate 43 463.163 206.51 31.492 5 840 60 405 520 600 670 690 840 840 Education Post Graduate 14 357.5 255.702 68.339 10 700 10 90 355 550 675 700 700 700 Census Region Northeast 71 449.423 207.98 24.683 5 890 15 300 510 565 675 725 780 890 Census Region Midwest 113 462.035 196.506 18.486 2 997 30 405 520 570 640 700 770 820 Census Region South 136 465.912 199.315 17.091 5 870 20 382 522.5 570 670 720 840 855 Census Region West 63 400.159 221.13 27.86 10 760 30 185 490 550 675 690 710 760 Day Of Week Weekday 319 476.445 190.875 10.687 5 997 30 435 525 580 675 710 770 855 Day Of Week Weekend 64 323.547 222.63 27.829 2 820 10 107.5 357.5 507.5 560 620 780 820 Season Winter 89 468.157 188.472 19.978 10 997 30 360 520 565 660 690 780 997 Season Spring 91 445.198 212.648 22.292 10 870 30 270 505 570 675 760 840 870 Season Summer 127 440.646 210.285 18.66 2 890 15 370 510 560 645 700 765 855 Season Fall 76 454.632 204.721 23.483 5 760 30 352.5 520 591 675 690 720 760 Asthma No 364 452.948 203.838 10.684 2 997 30 355 512.5 570 675 705 770 855 Asthma Yes 17 412.353 187.025 45.36 20 580 20 340 495 540 550 580 580 580 Asthma DK 2 405 530.33 375 30 780 30 30 405 780 780 780 780 780 Angina No 375 453.928 202.31 10.447 2 997 30 360 515 570 670 705 770 855 Angina Yes 5 231 168.389 75.306 60 475 60 90 230 300 475 475 475 475 Angina DK 3 438.333 379.418 219.06 30 780 30 30 505 780 780 780 780 780 Bronchitis/ Emphysema No 362 450.235 204.588 10.753 2 997 30 350 510 565 663 700 770 855 Bronchitis/ Emphysema Yes 19 468.316 175.293 40.215 50 720 50 375 510 568 690 720 720 720 Bronchitis/ Emphysema DK 2 405 530.33 375 30 780 30 30 405 780 780 780 780 780 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 120 August 1997 Table 15 104. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors on a Sidewalk, Street, or in the Neighborhood Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 896 85.785 133.828 4.4709 1 1440 2 15 40 90 223 405 565 615 Gender Male 409 108.775 168.11 8.3125 1 1440 3 20 45 120 330 525 615 710 Gender Female 487 66.476 91.863 4.1627 1 580 1 15 35 75 152 255 435 465 Age ( years) * 15 72.533 69.418 17.9236 1 290 1 40 55 90 120 290 290 290 Age ( years) 1 4 30 54.8 52.731 9.6274 1 235 2 10 42.5 78 125 158 235 235 Age ( years) 5 11 75 110.813 116.76 13.4823 1 540 5 20 65 178 240 410 465 540 Age ( years) 12 17 74 52.554 74.776 8.6925 1 435 2 15 30 60 125 200 338 435 Age ( years) 18 64 580 94.279 153.933 6.3917 1 1440 2 15 40 82.5 277.5 480 600 690 Age ( years) > 64 122 59.418 61.519 5.5696 1 380 2 20 40 75 120 190 235 270 Race White 727 85.735 136.504 5.0627 1 1440 2 15 41 90 215 405 570 675 Race Black 87 89.184 132.669 14.2236 1 565 2 10 35 120 324 426 540 565 Race Asian 11 88.727 114.01 34.3752 2 405 2 30 45 120 149 405 405 405 Race Some Others 18 80.556 105.981 24.98 10 420 10 20 40 75 240 420 420 420 Race Hispanic 42 71.357 110.769 17.092 1 525 1 20 40 75 135 290 525 525 Race Refused 11 122.909 117.699 35.4876 2 310 2 40 60 290 300 310 310 310 Hispanic No 807 87.482 136.129 4.792 1 1440 2 15 45 90 225 410 565 600 Hispanic Yes 79 67.797 110.301 12.4098 1 615 1 15 30 62 140 300 525 615 Hispanic DK 1 2 * * 2 2 2 2 2 2 2 2 2 2 Hispanic Refused 9 100.778 115.933 38.6443 2 310 2 40 60 90 310 310 310 310 Employment * 176 79.182 96.345 7.2622 1 540 2 15 45 110 200 260 435 465 Employment Full Time 384 102.221 169.534 8.6515 1 1440 3 15 40.5 75 330 525 600 710 Employment Part Time 74 74.446 113.86 13.2359 1 795 1 15 42.5 86 180 255 390 795 Employment Not Employed 255 69.996 94.045 5.8893 1 615 1 15 40 85 152 270 380 485 Employment Refused 7 45.143 36.64 13.8485 2 90 2 4 40 90 90 90 90 90 Education * 198 74.914 92.253 6.5561 1 540 2 15 40.5 90 185 240 435 465 Education < High School 56 131.232 247.289 33.0454 1 1440 1 15 40 118 465 710 735 1440 Education High School Graduate 223 100.233 146.92 9.8385 1 795 5 20 45 95 275 480 600 680 Education < College 172 77.186 128.752 9.8173 1 675 1 10 30 75 180 435 570 600 Education College Graduate 138 76.275 106.589 9.0734 1 600 3 20 45 70 205 310 485 565 Education Post Graduate 109 78.229 121.311 11.6195 1 710 5 20 45 60 200 330 560 570 Census Region Northeast 202 89.134 132.343 9.3116 1 735 3 15 45 90 235 410 530 570 Census Region Midwest 193 87.855 153.329 11.0369 1 1440 2 15 30 85 240 355 565 600 Census Region South 298 79.943 125.46 7.2677 1 710 2 15 35 75 185 420 532 680 Census Region West 203 89.059 127.909 8.9775 1 795 1 20 45 105 210 300 570 615 Day Of Week Weekday 642 86.684 143.938 5.6808 1 1440 2 15 40 80 223 426 585 680 Day Of Week Weekend 254 83.512 104.207 6.5385 1 565 2 25 45 90 220 310 440 480 Season Winter 210 73.548 144.308 9.9582 1 1440 1 15 33 60 160 270 560 710 Season Spring 242 97.913 137.243 8.8223 1 795 4 25 45 120 240 435 570 675 Season Summer 276 83.989 123.086 7.4089 1 690 4 15 45 90 200 420 525 580 Season Fall 168 86.56 131.855 10.1729 1 710 2 15 40 90 240 405 600 615 Asthma No 832 86.108 129.455 4.488 1 795 2 15 40 90 225 418 565 600 Asthma Yes 57 85.596 193.133 25.5811 1 1440 1 15 35 90 180 235 260 1440 Asthma DK 7 48.857 27.973 10.5727 2 90 2 30 60 60 90 90 90 90 Angina No 857 86.177 134.897 4.608 1 1440 2 15 40 90 223 410 565 615 Angina Yes 33 81.727 117.393 20.4356 1 465 1 17 45 60 250 380 465 465 Angina DK 6 52 29.257 11.9443 2 90 2 40 60 60 90 90 90 90 Bronchitis/ Emphysema No 855 84.837 132.316 4.5251 1 1440 2 15 40 85 225 405 560 600 Bronchitis/ Emphysema Yes 34 117.735 176.429 30.2574 3 735 8 30 45 120 215 690 735 735 Bronchitis/ Emphysema DK 7 46.286 27.482 10.3871 2 90 2 32 40 60 90 90 90 90 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 121 Table 15 105. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors in a Parking Lot Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 226 70.721 126.651 8.425 1 910 2 10 20 60 190 309 510 580 Gender Male 106 100.34 167.159 16.236 1 910 5 15 30 110 315 495 580 720 Gender Female 120 44.558 64.826 5.918 1 295 1 5 20 46.5 167.5 187.5 248 285 Age ( years) * 3 135 195 112.58 15 360 15 15 30 360 360 360 360 360 Age ( years) 1 4 11 39.818 38.449 11.593 5 110 5 10 20 90 90 110 110 110 Age ( years) 5 11 5 62 63.699 28.487 5 170 5 30 45 60 170 170 170 170 Age ( years) 12 17 12 93.75 90.81 26.214 5 248 5 17.5 52 163 238 248 248 248 Age ( years) 18 64 182 69.984 132.655 9.833 1 910 2 10 20 60 190 309 550 720 Age ( years) > 64 13 74.462 127.9 35.473 1 465 1 10 25 60 180 465 465 465 Race White 180 72.122 128.299 9.563 1 910 2 10 20.5 64 205 302 510 720 Race Black 18 102.444 167.776 39.545 2 580 2 6 27.5 130 495 580 580 580 Race Asian 3 21.667 7.638 4.41 15 30 15 15 20 30 30 30 30 30 Race Some Others 5 50 46.098 20.616 5 115 5 10 45 75 115 115 115 115 Race Hispanic 17 25.706 39.365 9.547 1 165 1 10 10 20 60 165 165 165 Race Refused 3 135 195 112.58 15 360 15 15 30 360 360 360 360 360 Hispanic No 196 69.26 114.078 8.148 1 720 2 10 24 67.5 190 295 495 580 Hispanic Yes 25 42.92 103.34 20.668 1 510 1 5 10 20 75 165 510 510 Hispanic DK 2 465 629.325 445 20 910 20 20 465 910 910 910 910 910 Hispanic Refused 3 135 195 112.58 15 360 15 15 30 360 360 360 360 360 Employment * 26 55.577 59.88 11.743 5 238 5 15 30 90 145 170 238 238 Employment Full Time 117 83.325 155.119 14.341 1 910 2 10 20 60 240 495 580 720 Employment Part Time 37 75.378 114.734 18.862 1 465 1 5 21 90 180 450 465 465 Employment Not Employed 43 37.093 46.8 7.137 1 210 1 10 20 60 90 134 210 210 Employment Refused 3 135 195 112.58 15 360 15 15 30 360 360 360 360 360 Education * 33 69.697 85.644 14.909 1 360 5 15 30 90 180 248 360 360 Education < High School 16 73.25 176.778 44.194 2 720 2 7.5 22.5 32.5 165 720 720 720 Education High School Graduate 83 83 124.358 13.65 1 580 5 10 25 90 215 315 495 580 Education < College 49 75.898 162.674 23.239 1 910 2 10 20 60 210 450 910 910 Education College Graduate 23 48.783 107.169 22.346 1 510 2 5 10 30 130 135 510 510 Education Post Graduate 22 35.5 54.472 11.613 1 185 1 5 15 30 115 180 185 185 Census Region Northeast 56 57.357 82.622 11.041 1 495 1 12.5 27.5 75 135 180 295 495 Census Region Midwest 48 73.438 118.574 17.115 1 550 5 10 25 62.5 248 315 550 550 Census Region South 75 57.92 106.421 12.288 1 720 2 7 20 50 185 238 360 720 Census Region West 47 104.298 189.916 27.702 3 910 5 10 20 90 450 510 910 910 Day Of Week Weekday 154 64.851 136.686 11.014 1 910 2 7 20 43 180 450 550 720 Day Of Week Weekend 72 83.278 101.675 11.982 1 465 5 15 35 113 240 309 360 465 Season Winter 45 50.533 64.702 9.645 2 309 5 15 30 63 130 180 309 309 Season Spring 57 82.912 131.245 17.384 1 495 1 10 20 90 240 465 495 495 Season Summer 75 72.027 146.21 16.883 1 910 2 10 20 60 205 315 580 910 Season Fall 49 73.082 133.165 19.024 1 720 1 10 20 75 205 295 720 720 Asthma No 204 62.98 109.369 7.657 1 720 2 10 20 60 180 248 495 510 Asthma Yes 18 149.722 238.456 56.205 1 910 1 15 45 145 580 910 910 910 Asthma DK 4 110 166.883 83.442 15 360 15 22.5 32.5 198 360 360 360 360 Angina No 217 69.263 127.076 8.626 1 910 2 10 20 60 185 309 510 580 Angina Yes 5 99.6 83.056 37.144 35 238 35 40 75 110 238 238 238 238 Angina DK 4 113.75 164.792 82.396 15 360 15 22.5 40 205 360 360 360 360 Bronchitis/ Emphysema No 211 65.555 114.21 7.863 1 720 2 10 20 60 180 295 495 550 Bronchitis/ Emphysema Yes 11 142.364 265.976 80.195 1 910 1 10 40 180 240 910 910 910 Bronchitis/ Emphysema DK 4 146.25 160.799 80.399 15 360 15 22.5 105 270 360 360 360 360 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 122 August 1997 Table 15 106. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors at a Service Station or Gas Station Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 191 50.597 125.489 9.0801 1 790 5 5 10 20 105 365 570 645 Gender Male 90 73.522 149.969 15.8082 1 645 5 5 10 30 325 495 600 645 Gender Female 101 30.168 94.915 9.4444 2 790 5 5 10 15 44 105 180 510 Age ( years) * 1 86 * * 86 86 86 86 86 86 86 86 86 86 Age ( years) 1 4 3 6.667 2.887 1.6667 5 10 5 5 5 10 10 10 10 10 Age ( years) 5 11 3 66.667 98.277 56.7401 5 180 5 5 15 180 180 180 180 180 Age ( years) 12 17 11 7.818 4.513 1.3606 1 15 1 5 5 10 15 15 15 15 Age ( years) 18 64 157 54.185 135.636 10.8249 2 790 5 5 10 15 110 390 570 645 Age ( years) > 64 16 47.813 69.497 17.3744 5 240 5 10 18 55 180 240 240 240 Race White 170 50.941 124.015 9.5115 2 790 5 5 10 20 107.5 365 520 600 Race Black 11 80.727 191.433 57.7192 4 645 4 5 5 44 140 645 645 645 Race Asian 1 5 * * 5 5 5 5 5 5 5 5 5 5 Race Some Others 3 16.667 20.207 11.6667 5 40 5 5 5 40 40 40 40 40 Race Hispanic 5 10.2 7.596 3.3971 1 20 1 5 10 15 20 20 20 20 Race Refused 1 10 * * 10 10 10 10 10 10 10 10 10 10 Hispanic No 179 53.056 129.15 9.6531 2 790 5 5 10 20 130 380 570 645 Hispanic Yes 12 13.917 23.008 6.6418 1 86 1 5 7.5 10 15 86 86 86 Employment * 16 18.813 43.196 10.799 1 180 1 5 7.5 12.5 15 180 180 180 Employment Full Time 110 55.827 136.782 13.0417 2 645 5 5 10 15 99 495 570 600 Employment Part Time 26 34.731 71.829 14.0868 3 355 5 5 10 25 100 130 355 355 Employment Not Employed 38 40.237 76.973 12.4867 4 380 5 5 10 20 140 240 380 380 Employment Refused 1 790 * * 790 790 790 790 790 790 790 790 790 790 Education * 18 17.833 40.712 9.5958 1 180 1 5 7.5 15 15 180 180 180 Education < High School 16 103 164.12 41.03 5 520 5 10 15 140 365 520 520 520 Education High School Graduate 46 85.739 162.855 24.0116 3 645 5 5 10 85 380 495 645 645 Education < College 58 41.759 121.08 15.8986 2 790 4 5 13 20 60 110 510 790 Education College Graduate 30 36.633 111.641 20.3828 2 570 4 5 6.5 15 30 270 570 570 Education Post Graduate 23 10 6.396 1.3337 5 30 5 5 10 10 20 20 30 30 Census Region Northeast 33 59.697 149.173 25.9677 2 600 3 5 10 20 105 570 600 600 Census Region Midwest 48 28.563 77.552 11.1936 2 510 5 5 10 15 60 110 510 510 Census Region South 68 49.882 133.967 16.2459 1 790 5 5 10 15 130 295 645 790 Census Region West 42 69.786 135.545 20.9151 4 520 5 5 13 40 270 390 520 520 Day Of Week Weekday 122 58.402 145.085 13.1354 2 790 5 5 10 20 130 495 600 645 Day Of Week Weekend 69 36.797 79.004 9.5109 1 390 4 5 10 15 88 240 380 390 Season Winter 56 37.536 100.602 13.4435 2 600 4 5 10 15 60 270 355 600 Season Spring 54 80.13 157.514 21.4349 1 645 5 5 10 60 380 510 570 645 Season Summer 51 46.51 137.689 19.2804 2 790 5 5 10 15 35 365 520 790 Season Fall 30 28.767 58.93 10.7591 3 295 5 5 8.5 15 93 130 295 295 Asthma No 174 53.517 130.777 9.9141 1 790 5 5 10 20 130 380 570 645 Asthma Yes 16 15.75 25.736 6.434 2 110 2 5 7.5 15 20 110 110 110 Asthma DK 1 100 * * 100 100 100 100 100 100 100 100 100 100 Angina No 184 46.788 120.622 8.8923 1 790 5 5 10 15 88 295 570 645 Angina Yes 7 150.714 206.81 78.1667 10 510 10 15 20 380 510 510 510 510 Bronchitis/ Emphysema No 181 47.122 123.971 9.2147 1 790 5 5 10 15 85 295 570 645 Bronchitis/ Emphysema Yes 10 113.5 142.946 45.2036 5 380 5 10 58 140 367.5 380 380 380 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 123 Table 15 107. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors at a Construction Site Percentiles Group Name Group Code N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 143 437.098 242.073 20.243 1 1190 10 240 510 600 675 740 930 985 Gender Male 130 461.531 232.511 20.393 1 1190 10 300 522.5 600 688.5 745 930 985 Gender Female 13 192.769 202.794 56.245 5 630 5 60 135 165 535 630 630 630 Age ( years) * 1 510 * * 510 510 510 510 510 510 510 510 510 510 Age ( years) 1 4 2 240 254.558 180 60 420 60 60 240 420 420 420 420 420 Age ( years) 12 17 1 10 * * 10 10 10 10 10 10 10 10 10 10 Age ( years) 18 64 133 444.549 243.017 21.072 1 1190 10 240 520 600 687 745 930 985 Age ( years) > 64 6 396.667 188.75 77.057 60 560 60 300 460 540 560 560 560 560 Race White 125 430.872 247.432 22.131 5 1190 10 240 510 600 687 740 930 985 Race Black 10 430.1 233.307 73.778 1 630 1 170 550 585 615 630 630 630 Race Some Others 2 492.5 60.104 42.5 450 535 450 450 492.5 535 535 535 535 535 Race Hispanic 3 501.667 170.318 98.333 305 600 305 305 600 600 600 600 600 600 Race Refused 3 618.333 166.458 96.105 510 810 510 510 535 810 810 810 810 810 Hispanic No 129 426.202 247.087 21.755 1 1190 10 180 510 600 665 735 930 985 Hispanic Yes 9 496.111 166.429 55.476 240 765 240 410 505 600 765 765 765 765 Hispanic DK 2 577.5 180.312 127.5 450 705 450 450 577.5 705 705 705 705 705 Hispanic Refused 3 635 156.125 90.139 510 810 510 510 585 810 810 810 810 810 Employment * 3 163.333 223.681 129.142 10 420 10 10 60 420 420 420 420 420 Employment Full Time 127 456.803 236.198 20.959 1 1190 15 285 520 605 690 745 930 985 Employment Part Time 6 495.833 171.389 69.969 155 600 155 510 555 600 600 600 600 600 Employment Not Employed 7 146.571 162.79 61.529 5 430 5 6 60 300 430 430 430 430 Education * 4 250 251.794 125.897 10 510 10 35 240 465 510 510 510 510 Education < High School 12 500.833 227.035 65.539 60 930 60 375 525 592.5 735 930 930 930 Education High School Graduate 68 482.162 228.976 27.767 5 1190 20 395 522.5 592.5 720 780 985 1190 Education < College 41 417.683 241.023 37.641 1 745 10 170 520 615 645 687 745 745 Education College Graduate 14 372.357 247.278 66.088 15 660 15 120 440 585 643 660 660 660 Education Post Graduate 4 92.5 137.265 68.632 5 295 5 7.5 35 177.5 295 295 295 295 Census Region Northeast 28 481.714 238.306 45.036 5 985 6 357.5 532.5 650 695 740 985 985 Census Region Midwest 30 343.967 231.025 42.179 5 810 10 120 342 525 637.5 660 810 810 Census Region South 57 474.018 248.301 32.888 1 1190 10 410 535 615 720 765 780 1190 Census Region West 28 417.107 226.287 42.764 15 930 60 235 500 570 630 656 930 930 Day Of Week Weekday 121 455.116 238.494 21.681 5 1190 15 285 525 600 687 745 930 985 Day Of Week Weekend 22 338 243.022 51.813 1 705 5 60 407.5 525 600 645 705 705 Season Winter 34 418.5 268.44 46.037 1 1190 5 155 505 570 645 695 1190 1190 Season Spring 33 412.242 223.533 38.912 10 810 60 230 490 570 635 740 810 810 Season Summer 46 477.739 221.422 32.647 10 985 60 325 515 630 705 745 985 985 Season Fall 30 423.2 264.183 48.233 5 930 6 135 532.5 585 700 780 930 930 Asthma No 137 437.161 243.531 20.806 1 1190 10 240 510 600 675 745 930 985 Asthma Yes 6 435.667 225.957 92.247 60 690 60 354 440 630 690 690 690 690 Angina No 139 439.108 242.331 20.554 1 1190 10 240 510 600 687 745 930 985 Angina Yes 4 367.25 256.288 128.144 10 570 10 182 444.5 552.5 570 570 570 570 Bronchitis/ Emphysema No 140 433.257 240.003 20.284 1 1190 10 240 510 600 670 737.5 810 930 Bronchitis/ Emphysema Yes 3 616.333 328.664 189.755 354 985 354 354 510 985 985 985 985 985 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 124 August 1997 Table 15 108. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors on School Grounds/ Playground Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 259 98.386 110.056 6.839 1 690 5 30 70 120 208 300 540 570 Gender Male 0.136 118.007 126.395 10.84 1 690 10 35 85 148.5 255 370 555 625 Gender Female 123 76.691 83.861 7.562 1 570 5 20 51 120 180 225 270 440 Age ( years) * 2 275 374.767 265 10 540 10 10 275 540 540 540 540 540 Age ( years) 1 4 9 85 61.084 20.36 10 175 10 30 65 140 175 175 175 175 Age ( years) 5 11 64 88.016 95.638 11.96 5 625 10 30 60 120 170 220 315 625 Age ( years) 12 17 76 78.658 88.179 10.12 3 570 5 25 55 105 165 225 370 570 Age ( years) 18 64 101 119.812 127.563 12.69 1 690 5 30 85 165 240 360 540 555 Age ( years) > 64 7 65 47.258 17.86 5 150 5 30 60 95 150 150 150 150 Race White 208 98.212 106.512 7.385 1 690 9 30 70 125 190 281 510 555 Race Black 23 128.435 157.54 32.85 5 570 5 25 67 170 300 540 570 570 Race Asian 6 59 66.076 26.98 10 179 10 10 35 85 179 179 179 179 Race Some Others 7 70 59.652 22.55 10 180 10 10 60 105 180 180 180 180 Race Hispanic 15 83.733 102.972 26.59 1 370 1 10 30 120 228 370 370 370 Hispanic No 225 102.613 113.686 7.579 3 690 9 30 70 125 210 300 540 570 Hispanic Yes 32 71.219 79.899 14.12 1 370 1 12.5 32.5 110 150 228 370 370 Hispanic DK 2 57.5 31.82 22.5 35 80 35 35 57.5 80 80 80 80 80 Employment * 143 80.161 88.031 7.362 3 625 9 25 55 115 160 215 315 570 Employment Full Time 48 130.271 127.162 18.35 1 555 10 40 85 180 300 360 555 555 Employment Part Time 24 129.708 158.934 32.44 3 690 10 35 85 143.5 228 510 690 690 Employment Not Employed 42 95.429 94.776 14.62 1 440 5 30 80 120 180 235 440 440 Employment Refused 2 322.5 307.591 217.5 105 540 105 105 323 540 540 540 540 540 Education * 162 86.593 94.553 7.429 3 625 10 27 60 120 170 220 370 570 Education < High School 11 124.818 171.918 51.84 1 540 1 5 45 180 345 540 540 540 Education High School Graduate 33 113.636 110.669 19.27 3 555 5 30 90 160 240 290 555 555 Education < College 19 129.842 147.389 33.81 5 510 5 33 70 210 440 510 510 510 Education College Graduate 19 122.105 149.938 34.4 5 690 5 50 85 125 235 690 690 690 Education Post Graduate 15 102.933 98.093 25.33 1 360 1 30 75 125 235 360 360 360 Census Region Northeast 66 105.955 115.248 14.19 5 690 10 30 85 150 190 281 540 690 Census Region Midwest 53 86.057 109.203 15 3 540 5 20 50 115 190 290 510 540 Census Region South 82 85.463 92.353 10.2 1 570 5 30 60 115 180 255 360 570 Census Region West 58 119.31 125.638 16.5 1 625 10 30 85 160 235 440 555 625 Day Of Week Weekday 205 87.02 105.524 7.37 1 625 5 25 55 115 180 240 540 555 Day Of Week Weekend 54 141.537 117.065 15.93 10 690 25 67 113 180 290 345 440 690 Season Winter 53 72.189 101.951 14 1 555 3 20 35 85 130 315 440 / 555 Season Spring 88 108.614 96.502 10.29 5 540 10 45 85 147.5 215 255 510 540 Season Summer 65 116.446 137.897 17.1 5 690 10 30 75 135 270 360 625 690 Season Fall 53 85.453 96.241 13.22 5 540 5 20 55 120 180 235 345 540 Asthma No 237 100.941 113.236 7.355 1 690 5 30 70 120 215 315 540 570 Asthma Yes 22 70.864 61.977 13.21 5 179 10 15 45 145 160 165 179 179 Angina No 254 99.118 110.809 6.953 1 690 5 30 68.5 120 208 300 540 570 Angina Yes 5 61.2 53.383 23.87 1 130 1 15 70 90 130 130 130 130 Bronchitis/ Emphysema No 248 100.565 111.621 7.088 1 690 5 30 71 125 210 300 540 570 Bronchitis/ Emphysema Yes 10 52.7 45.363 14.35 9 160 9 22 44 60 125 160 160 160 Bronchitis/ Emphysema DK 1 15 0 0 15 15 15 15 15 15 15 15 15 15 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 125 Table 15 109. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors at a Park/ Golf Course Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 506 198.603 190.248 8.4575 1 1065 20 60 135 270 465 590 748 870 Gender Male 291 205.825 183.101 10.7336 1 1015 25 60 150 285 510 590 730 755 Gender Female 214 187.748 199.367 13.6284 5 1065 15 55 120 250 435 590 870 930 Gender Refused 1 420 * * 420 420 420 420 420 420 420 420 420 420 Age ( years) * 10 122.4 60.183 19.0317 30 225 30 60 120 160 202 225 225 225 Age ( years) 1 4 21 149.857 176.25 38.4609 21 755 25 50 85 150 360 425 755 755 Age ( years) 5 11 54 207.556 184.496 25.1068 25 665 35 70 125 275 555 635 660 665 Age ( years) 12 17 52 238.462 242.198 33.5869 15 1065 15 60 147.5 337.5 590 840 915 1065 Age ( years) 18 64 314 197.838 185.939 10.4931 1 1015 20 60 150 270 440 580 748 870 Age ( years) > 64 55 188.964 182.919 24.6648 10 735 20 30 120 300 510 570 590 735 Race White 441 205.338 195.266 9.2984 1 1065 20 60 150 275 480 605 795 915 Race Black 19 114.474 103.667 23.7829 15 425 15 30 90 155 240 425 425 425 Race Asian 8 185.625 233.398 82.5186 30 665 30 32.5 47.5 315 665 665 665 665 Race Some Others 16 171.25 154.229 38.5572 30 560 30 58 119.5 235 405 560 560 560 Race Hispanic 20 169.45 135.803 30.3664 30 555 32.5 77 145 205 372.5 495 555 555 Race Refused 2 75 63.64 45 30 120 30 30 75 120 120 120 120 120 Hispanic No 469 202.706 193.555 8.9376 1 1065 20 60 135 270 480 605 755 915 Hispanic Yes 34 154.824 135.043 23.1596 15 555 30 60 137.5 175 310 555 555 555 Hispanic DK 1 10 * * 10 10 10 10 10 10 10 10 10 10 Hispanic Refused 2 75 63.64 45 30 120 30 30 75 120 120 120 120 120 Employment * 128 208.242 209.644 18.5301 15 1065 25 60 120 275 555 645 840 915 Employment Full Time 201 195.831 188.984 13.3299 8 1015 25 60 135 270 450 570 748 930 Employment Part Time 41 213.488 215.602 33.6714 20 870 20 60 132 260 540 660 870 870 Employment Not Employed 132 190.932 166.019 14.4501 1 810 15 60 160 270 420 525 730 735 Employment Refused 4 130 106.771 53.3854 30 280 30 60 105 200 280 280 280 280 Education * 140 202.743 204.676 17.2983 15 1065 20.5 60 120 270 498.5 640 840 915 Education < High School 32 180.844 207.784 36.7315 30 995 30 30 110 245 385 570 995 995 Education High School Graduate 108 219.676 197.223 18.9778 10 1015 20 77.5 162.5 281 545 625 730 810 Education < College 93 191.57 171.177 17.7502 1 870 15 60 150 275 440 510 748 870 Education College Graduate 83 203.53 183.095 20.0973 5 930 23 60 145 270 450 590 795 930 Education Post Graduate 50 157.76 166.568 23.5562 10 735 20 45 75 255 337.5 555 703 735 Census Region Northeast 106 184.858 177.429 17.2334 1 1065 20 60 124 240 450 574 635 660 Census Region Midwest 124 194.629 188.667 16.9428 10 1015 30 60 135 255 420 590 735 995 Census Region South 136 218.846 211.474 18.1337 10 930 20 60 150 325 525 720 840 915 Census Region West 140 192.864 179.421 15.1639 5 870 17.5 58 131 272.5 430 575 755 810 Day Of Week Weekday 276 195.996 189.287 11.3938 5 1015 20 60 145 252.5 510 625 748 840 Day Of Week Weekend 230 201.73 191.76 12.6443 1 1065 20 60 130 280 454.5 580 810 915 Season Winter 83 209.072 195.228 21.429 15 1065 30 60 165 275 440 660 795 1065 Season Spring 163 168.479 159.071 12.4594 8 930 20 50 120 235 360 510 570 755 Season Summer 192 219.615 199.872 14.4245 5 1015 20 65 155 290 535 630 840 915 Season Fall 68 198.706 217.911 26.4256 1 995 20 60 117.5 280 555 735 810 995 Asthma No 466 192.127 178.759 8.2808 1 1015 20 60 135 270 450 580 700 755 Asthma Yes 38 284.526 288.727 46.8377 30 1065 35 90 170 390 870 995 1 65 1065 Asthma DK 2 75 63.64 45 30 120 30 30 75 120 120 120 120 120 Angina No 494 197.881 189.761 8.5378 1 1065 20 60 135 270 459 590 755 915 Angina Yes 9 247.778 235.267 78.4224 35 730 35 60 120 330 730 730 730 730 Angina DK 3 170 170.587 98.4886 30 360 30 30 120 360 360 360 360 360 Bronchitis/ Emphysema No 490 196.978 184.633 8.3409 1 1065 20 60 145 270 454.5 585 735 840 Bronchitis/ Emphysema Yes 14 273.143 339.073 90.6211 20 995 20 75 100 280 930 995 995 995 Bronchitis/ Emphysema DK 2 75 63.64 45 30 120 30 30 75 120 120 120 120 120 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 126 August 1997 Table 15 110. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors at a Pool/ River/ Lake Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 283 209.555 185.668 11.037 5 1440 25 60 150 296 480 570 670 690 Gender Male 152 229.829 202.702 16.441 10 1440 30 82.5 174 305 510 600 690 900 Gender Female 131 186.031 161.293 14.092 5 645 20 60 135 280 440 550 630 630 Age ( years) * 6 175 156.971 64.083 60 480 60 85 115 195 480 480 480 480 Age ( years) 1 4 14 250.571 177.508 47.441 90 630 90 130 167.5 370 560 630 630 630 Age ( years) 5 11 29 175.448 117.875 21.889 25 390 30 60 145 293 365 375 390 390 Age ( years) 12 17 22 128.318 94.389 20.124 40 420 58 60 82.5 210 225 235 420 420 Age ( years) 18 64 187 224.492 203.822 14.905 5 1440 20 60 150 320 511 615 690 900 Age ( years) > 64 25 194.2 161.757 32.351 20 525 30 60 115 277 480 510 525 525 Race White 246 201.565 182.298 11.623 5 1440 25 60 145 285 440 560 670 690 Race Black 12 380.583 231.89 66.941 20 690 20 177.5 450 562.5 615 690 690 690 Race Asian 4 265 247.083 123.54 30 505 30 52.5 262.5 477.5 505 505 505 505 Race Some Others 5 237 129.933 58.108 70 435 70 220 225 235 435 435 435 435 Race Hispanic 12 161 131.699 38.018 20 390 20 52.5 112.5 265 375 390 390 390 Race Refused 4 243.75 208.621 104.31 90 550 90 115 167.5 372.5 550 550 550 550 Hispanic No 259 208.923 187.792 11.669 5 1440 25 60 150 295 480 585 670 690 Hispanic Yes 20 210.9 160.142 35.809 20 540 28.5 87.5 155 337.5 450.5 525.5 540 540 Hispanic Refused 4 243.75 208.621 104.31 90 550 90 115 167.5 372.5 550 550 550 550 Employment * 66 176.879 131.256 16.156 25 630 40 70 142.5 235 370 420 560 630 Employment Full Time 119 210.748 176.089 16.142 10 900 20 65 150 298 510 600 645 670 Employment Part Time 26 217.038 199.926 39.209 20 670 30 60 120 320 570 580 670 670 Employment Not Employed 69 238.884 236.16 28.43 5 1440 20 65 145 370 510 630 690 1440 Employment Refused 3 141.667 52.52 30.322 90 195 90 90 140 195 195 195 195 195 Education * 73 172.932 129.988 15.214 20 630 30 70 140 225 370 420 560 630 Education < High School 18 267.611 159.382 37.567 40 600 40 145 247.5 375 525 600 600 600 Education High School Graduate 69 213.217 224.126 26.982 10 1440 20 60 145 285 511 670 690 1440 Education < College 62 233.258 192.408 24.436 5 690 30 65 150 360 550 580 615 690 Education College Graduate 37 230.919 187.271 30.787 14 645 20 70 173 400 505 630 645 645 Education Post Graduate 24 172.708 196.977 40.208 20 900 25 45 112.5 240 370 480 900 900 Census Region Northeast 61 220.689 172.373 22.07 30 900 30 60 180 325 390 510 670 900 Census Region Midwest 41 219.22 257.201 40.168 10 1440 20 60 120 280 480 600 1440 1440 Census Region South 111 182.198 161.288 15.309 5 670 20 60 118 280 420 525 630 645 Census Region West 70 237.571 181.838 21.734 25 690 40 90 180 300 547.5 615 690 690 Day Of Week Weekday 165 188.77 179.894 14.005 10 1440 30 60 125 255 420 511 615 670 Day Of Week Weekend 118 238.619 190.432 17.531 5 900 20 75 187.5 350 555 630 690 690 Season Winter 30 173.167 181.68 33.17 20 630 20 40 102.5 270 492.5 585 630 630 Season Spring 77 206.468 163.551 18.638 15 690 30 80 180 288 480 555 670 690 Season Summer 151 219.709 196.809 16.016 5 1440 26 65 155 300 445 580 630 900 Season Fall 25 201.4 189.663 37.933 20 670 45 70 105 310 510 510 670 670 Asthma No 262 209.004 188.208 11.628 5 1440 25 60 150 295 480 580 670 690 Asthma Yes 17 238.824 161.966 39.282 15 570 15 105 225 350 525 570 570 570 Asthma DK 4 121.25 59.214 29.607 60 195 60 75 115 167.5 195 195 195 195 Angina No 272 205.897 185.199 11.229 5 1440 25 60 145 290.5 480 570 645 690 Angina Yes 8 359.375 178.774 63.206 60 690 60 287.5 340 435 690 690 690 690 Angina DK 3 141.667 52.52 30.322 90 195 90 90 140 195 195 195 195 195 Bronchitis/ Emphysema No 266 210.974 189.082 11.593 5 1440 25 60 150 296 480 580 670 690 Bronchitis/ Emphysema Yes 14 197.143 131.54 35.156 15 440 15 90 172.5 300 370 440 440 440 Bronchitis/ Emphysema DK 3 141.667 52.52 30.322 90 195 90 90 140 195 195 195 195 195 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 127 Table 15 111. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors at a Restaurant/ Picnic Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 64 81.016 114.7 14.337 3 540 5 12.5 30 107.5 165 270 540 540 Gender Male 31 111.839 148.921 26.747 5 540 5 20 60 150 270 540 540 540 Gender Female 33 52.061 57.66 10.037 3 210 3 8 30 80 135 180 210 210 Age ( years) 1 4 6 57.5 61.38 25.058 5 160 5 15 30 105 160 160 160 160 Age ( years) 5 11 5 112.8 202.59 90.601 5 473 5 6 20 60 473 473 473 473 Age ( years) 12 17 6 60 55.408 22.62 5 150 5 30 35 105 150 150 150 150 Age ( years) 18 64 46 84.804 116.85 17.229 3 540 5 10 50 120 180 270 540 540 Age ( years) > 64 1 15 * * 15 15 15 15 15 15 15 15 15 15 Race White 54 76 105.032 14.293 3 540 5 15 30 105 165 270 473 540 Race Black 4 57.75 83.108 41.554 5 180 5 5.5 23 110 180 180 180 180 Race Asian 1 75 * * 75 75 75 75 75 75 75 75 75 75 Race Some Others 2 97.5 31.82 22.5 75 120 75 75 97.5 120 120 120 120 120 Race Hispanic 2 20 14.142 10 10 30 10 10 20 30 30 30 30 30 Race Refused 1 540 * * 540 540 540 540 540 540 540 540 540 540 Hispanic No 60 81.833 117.521 15.172 3 540 5 12.5 30 107.5 172.5 371.5 540 540 Hispanic Yes 4 68.75 66.63 33.315 10 160 10 20 52.5 117.5 160 160 160 160 Employment * 17 74.647 114.206 27.699 5 473 5 15 30 105 160 473 473 473 Employment Full Time 37 70.838 67.86 11.156 3 270 5 15 55 120 165 210 270 270 Employment Part Time 4 42 32.031 16.016 3 75 3 16.5 45 67.5 75 75 75 75 Employment Not Employed 6 187.833 272.841 111.387 5 540 5 7 17.5 540 540 540 540 540 Education * 18 70.667 112.076 26.416 3 473 3 6 30 105 160 473 473 473 Education < High School 1 540 * * 540 540 540 540 540 540 540 540 540 540 Education High School Graduate 11 56.182 84.536 25.489 3 270 3 10 20 60 165 270 270 270 Education < College 10 108.6 164.611 52.055 5 540 5 7 30 150 352.5 540 540 540 Education College Graduate 11 68.636 59.544 17.953 10 210 10 20 55 110 120 210 210 210 Education Post Graduate 13 70.308 53.494 14.836 6 180 6 15 75 80 140 180 180 180 Census Region Northeast 19 88.105 116.181 26.654 3 473 3 10 60 120 270 473 473 473 Census Region Midwest 15 102.6 140.685 36.325 3 540 3 15 45 165 210 540 540 540 Census Region South 16 48.563 47.25 11.812 5 140 5 8.5 30 92.5 120 140 140 140 Census Region West 14 85.357 138.737 37.079 10 540 10 15 30 75 160 540 540 540 Day Of Week Weekday 35 51.2 52.665 8.902 3 180 3 15 30 75 150 165 180 180 Day Of Week Weekend 29 117 154.21 28.636 5 540 5 10 60 135 473 540 540 540 Season Winter 8 79.375 75.187 26.583 10 210 10 20 52.5 135 210 210 210 210 Season Spring 14 138.429 172.811 46.186 5 540 5 30 65 180 473 540 540 540 Season Summer 28 71 105.063 19.855 3 540 3 7.5 35 100 150 160 540 540 Season Fall 14 44.571 52.2 13.951 5 165 5 10 20 60 150 165 165 165 Asthma No 61 82.131 117.182 15.004 3 540 5 10 30 110 165 270 540 540 Asthma Yes 3 58.333 40.723 23.511 30 105 30 30 40 105 105 105 105 105 Angina No 63 82.222 115.211 14.515 3 540 5 15 30 110 165 270 540 540 Angina Yes 1 5 * * 5 5 5 5 5 5 5 5 5 5 Bronchitis/ Emphysema No 63 81.667 115.502 14.552 3 540 5 10 30 110 165 270 540 540 Bronchitis/ Emphysema Yes 1 40 * * 40 40 40 40 40 40 40 40 40 40 Note: A "*" Signifies missing data. Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 128 August 1997 Table 15 112. Statistics for 24 Hour Cumulative Number of Minutes Spent Outdoors at a Farm Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 128 252.703 232.537 20.554 5 955 20 75 176.5 427.5 600 730 855 933 Gender Male 86 305.186 251.432 27.113 5 955 29 90 230 500 660 780 933 955 Gender Female 42 145.238 137.207 21.171 5 600 20 50 105 210 265 482 600 600 Age ( years) * 1 510 * * 510 510 510 510 510 510 510 510 510 510 Age ( years) 1 4 3 121.667 52.52 30.322 70 175 70 70 120 175 175 175 175 175 Age ( years) 5 11 7 111.286 76.952 29.085 25 264 25 50 100 130 264 264 264 264 Age ( years) 12 17 9 157.778 85.416 28.472 29 265 29 90 175 265 265 265 256 265 Age ( years) 18 64 91 296.67 252.209 26.439 5 955 20 80 230 500 635 780 933 955 Age ( years) > 64 17 133.824 134.182 32.544 5 495 5 50 85 160 360 495 495 495 Race White 120 260.217 236.226 21.564 5 955 20 75 180 472.5 607.5 745 855 933 Race Black 4 58.75 30.923 15.462 25 85 25 32.5 62.5 85 85 85 85 85 Race Some Others 2 165 21.213 15 150 180 150 150 165 180 180 180 180 180 Race Hispanic 2 277.5 222.739 157.5 120 435 120 120 277.5 435 435 435 435 435 Hispanic No 123 252.61 234.762 21.168 5 955 20 70 178 420 600 730 855 933 Hispanic Yes 4 297.5 189.143 94.571 120 485 120 135 292.. 5 460 485 485 485 485 Hispanic Refused 1 85 * * 85 85 85 85 85 85 85 85 85 85 Employment * 19 134.947 77.658 17.816 25 265 25 86 120 180 264 265 265 265 Employment Full Time 73 314.781 258.07 30.205 5 955 20 85 240 525 660 780 933 955 Employment Part Time 11 283 183.589 55.354 45 525 45 150 230 490 495 525 525 525 Employment Not Employed 24 152.917 183.977 37.554 5 825 5 35 90 205 280 495 825 825 E mployment Refused 1 20 * * 20 20 20 20 20 20 20 20 20 20 Education * 20 137.2 76.255 17.051 25 265 27 88 120 180 262 264.5 265 265 Education < High School 12 305 211.058 60.927 30 635 30 97.5 325 492.5 510 635 635 635 Education High School Graduate 50 314.54 280.31 39.642 5 955 20 85 215 525 745 855 944 955 Education < College 25 186.6 165.994 33.199 5 555 15 60 155 255 482 525 555 555 Education College Graduate 12 290.417 242.903 70.12 30 615 30 67.5 202.5 530 600 615 615 615 Education Post Graduate 9 229.444 246.062 82.021 5 780 5 80 150 210 780 780 780 780 Census Region Northeast 11 238.182 299.143 90.195 5 955 5 30 100 490 520 955 955 955 Census Region Midwest 42 202.31 196.644 30.343 15 780 20 654 125 265 510 635 780 780 Census Region South 57 279.702 239.345 31.702 5 933 25 85 195 482 635 760 825 933 Census Region West 18 293.667 242.324 57.116 5 855 5 120 220 525 615 855 855 855 Day Of Week Weekday 78 276.859 243.801 27.605 5 955 15 85 180 485 615 780 933 955 Day Of Week Weekend 50 215.02 210.635 29.788 5 855 25 60 120 290 525 700 792.5 855 Season Winter 32 205.25 207.666 36.711 5 955 22 77.5 120 245 495 540 955 955 Season Spring 40 224.4 213.304 33.726 5 825 25 60 152.5 342.5 525 625 825 825 Season Summer 43 276.093 247.758 37.783 5 933 20 70 230 435 660 760 933 933 Season Fall 13 379.231 264.904 73.471 15 780 15 200 280 600 730 780 780 780 Asthma No 120 256.983 235.209 21.472 5 955 21 75 180 427.5 607.5 745 855 933 Asthma Yes 8 188.5 188.481 66.638 5 500 5 700 110 321.5 500 500 500 500 Angina No 127 253.039 233.426 20.713 5 955 20 75 175 435 600 730 855 933 Angina Yes 1 210 * * 210 210 210 210 210 210 210 210 210 210 Bronchitis/ Emphysema No 125 256.208 233.892 20.92 5 955 22 75 178 435 600 730 855 933 Bronchitis/ Emphysema Yes 3 106.667 95.699 55.252 5 195 5 5 120 195 195 195 195 195 Note: A "*" Signifies missing data. Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 129 Table 15 113. Statistics for 24 Hour Cumulative Number of Minutes Spent at Home in the Kitchen Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 7063 92.646 94.207 1.121 1 1320 10 30 60 120 205 270 365 460 Gender Male 2988 74.998 80.79 1.478 1 840 10 30 55 90 155 215 300 392 Gender Female 4072 105.636 101.03 1.5832 1 1320 10 35 75 145 230 295 395 475 Gender Refused 3 40 31.225 18.028 15 75 15 15 30 75 75 75 75 75 Age ( years) * 144 102.688 110.82 9.235 5 840 15 30 70 130 215 260 485 540 Age ( years) 1 4 335 73.719 54.382 2.9712 5 392 15 30 60 100 140 180 225 240 Age ( years) 5 11 477 60.468 52.988 2.4262 1 690 10 30 50 75 120 150 180 235 Age ( years) 12 17 396 55.02 58.111 2.9202 1 450 5 15 36 65 125 155 240 340 Age ( years) 18 64 4531 90.313 90.893 1.3503 1 1320 10 30 60 120 200 260 345 420 Age ( years) > 64 1180 131.388 119.55 3.4802 3 825 15 49 100 172 275 360 490 620 Race White 5827 95.076 95.151 1.2465 1 840 10 30 65 120 210 273 380 465 Race Black 641 79.376 91.989 3.6333 2 1320 10 30 60 100 175 230 275 380 Race Asian 113 89.363 95.45 8.9792 5 690 10 30 75 115 150 220 265 650 Race Some Others 119 69.059 60.786 5.5722 2 315 7 30 55 90 150 195 210 315 Race Hispanic 266 84.203 77.297 4.7394 1 585 10 30 60 110 190 240 305 360 Race Refused 97 90.33 113.55 11.53 5 880 7 30 60 90 190 275 480 880 Hispanic No 6458 93.422 94.778 1.1794 1 1320 10 30 60 120 210 270 370 460 Hispanic Yes 497 83.889 82.921 3.7195 1 675 10 30 60 110 180 240 315 415 Hispanic DK 32 82.25 71.901 12.71 5 300 10 35 60 112.5 185 240 300 300 Hispanic Refused 76 88.421 118.56 13.6 5 880 7 30 60 90 190 240 480 880 Employment * 1200 62.348 55.431 1.6001 1 690 10 30 50 85 125 152.5 212.5 260 Employment Full Time 2965 77.748 77.466 1.4227 1 840 10 30 60 100 165 225 300 376 Employment Part Time 608 97.699 94.046 3.8141 1 755 10 30 70 133.5 213 270 405 445 Employment Not Employed 2239 126.929 115.78 2.4468 1 1320 12 45 95 175 270 342 470 545 Employment Refused 51 106.373 168.46 23.589 2 880 5 30 48 130 210 250 840 880 Education * 1346 63.922 62.315 1.6985 1 880 10 30 50 85 130 165 235 285 Education < High School 678 108.114 102.88 3.9511 1 775 10 34 80 150 230 295 405 545 Education High School Graduate 2043 107.208 102.33 2.264 1 840 10 35 75 150 235 300 415 500 Education < College 1348 94.359 101.17 2.7555 1 1320 10 30 60 120 210 280 380 450 Education College Graduate 933 91.874 92.098 3.0152 2 840 10 30 60 120 200 261 330 410 Education Post Graduate 715 88.227 87.661 3.2783 1 770 10 30 60 113 190 260 380 405 Census Region Northeast 1645 99.632 99.739 2.4591 1 840 10 30 70 130 210 300 390 465 Census Region Midwest 1601 96.066 93.567 2.3384 1 833 10 30 65 125 213 270 355 450 Census Region South 2383 86.253 87.055 1.7833 1 880 10 30 60 115 190 245 330 420 Census Region West 1434 91.441 99.061 2.6159 1 1320 10 30 60 119 195 255 380 480 Day Of Week Weekday 4849 90.068 92.218 1.3243 1 1320 10 30 60 119 195 255 360 450 Day Of Week Weekend 2214 98.294 98.207 2.0871 1 840 10 30 65.5 135 220 280 390 480 Season Winter 1938 96.575 100.32 2.2787 1 1320 10 30 65 120 210 285 390 485 Season Spring 1780 89.02 90.187 2.1376 1 840 10 30 60 120 195 255 350 420 Season Summer 1890 89.316 90.984 2.0928 1 880 10 30 60 120 195 255 362 430 Season Fall 1455 96.177 94.494 2.4773 1 770 10 30 65 125 210 275 375 470 Asthma No 6510 92.448 93.602 1.1601 1 1320 10 30 60 120 205 270 365 450 Asthma Yes 503 94.038 96.001 4.2805 1 785 10 30 60 120 210 270 345 450 Asthma DK 50 104.44 143.73 20.326 7 880 10 30 60 120 195 240 712.5 880 Angina No 6798 91.625 93.03 1.1283 1 1320 10 30 60 120 200 265 360 450 Angina Yes 207 122.469 111.41 7.7437 4 657 10 45 100 155 255 360 415 620 Angina DK 58 105.948 138.38 18.17 2 880 10 30 60 135 240 240 545 880 Bronchitis/ Emphysema No 6671 91.827 92.587 1.1336 1 1320 10 30 60 120 200 265 360 445 Bronchitis/ Emphysema Yes 338 104.784 113.39 6.1676 1 825 10 30 71 135 225 300 480 657 Bronchitis/ Emphysema DK 54 117.889 142.41 19.38 2 880 10 30 76 160 240 275 545 880 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 130 August 1997 Table 15 114. Statistics for 24 Hour Cumulative Number of Minutes Spent in the Bathroom Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 6661 35.0237 48.796 0.5979 1 870 5 15 25 40 60 90 137 255 Gender Male 3006 32.689 50.366 0.9186 1 870 5 15 20.5 35 60 75 150 300 Gender Female 3653 36.9491 47.399 0.7842 1 665 5 15 30 45 70 90 135 240 Gender Refused 2 27.5 3.536 2.5 25 30 25 25 27.5 30 30 30 30 30 Age ( years) * 122 43.8689 67.007 6.0665 2 530 5 15 30 45 85 120 300 360 Age ( years) 1 4 328 35.939 46.499 2.5675 1 600 10 15 30 40 60 75 125 270 Age ( years) 5 11 490 30.9673 38.609 1.7442 1 535 5 15 27 35 52.5 60 100 200 Age ( years) 12 17 445 29.0517 32.934 1.5612 1 547 5 15 20 35 60 65 90 100 Age ( years) 18 64 4486 34.4884 46.067 0.6878 1 665 5 15 25 40 60 90 135 250 Age ( years) > 64 790 42.1975 69.431 2.4703 1 870 5 15 30 45 75 120 240 360 Race White 5338 34.3164 48.628 0.6656 1 870 5 15 25 40 60 85 135 255 Race Black 711 36.8678 39.559 1.4836 1 460 5 15 30 45 70 98 135 186 Race Asian 117 33.5556 41.449 3.8319 5 375 5 15 25 40 60 90 110 210 Race Some Others 134 47.306 69.649 6.0167 1 535 5 15 30 45 95 120 315 422 Race Hispanic 283 38.6396 61.494 3.6554 1 546 5 15 24 45 60 80 270 425 Race Refused 78 34.6026 49.182 5.5687 3 360 5 10 20 35 60 135 165 360 Hispanic No 6067 34.5332 45.887 0.5891 1 705 5 15 25 40 60 90 135 240 Hispanic Yes 498 39.2309 68.582 3.0733 1 870 5 15 25 45 60 90 270 425 Hispanic DK 33 44.4242 72.269 12.58 5 422 10 15 30 45 60 120 422 422 Hispanic Refused 63 44.0794 95.224 11.997 3 665 5 10 20 35 60 150 360 665 Employment * 1240 31.9645 39.652 1.1261 1 600 5 15 30 35 60 70 100 180 Employment Full Time 3130 33.4086 44.827 0.8012 1 595 5 15 25 40 60 80 123 240 Employment Part Time 583 35.5232 43.932 1.8195 1 430 5 15 29 45 60 90 140 270 Employment Not Employed 1661 40.1854 61.587 1.5111 1 870 5 15 30 45 75 110 210 340 Employment Refused 47 34.6809 54.835 7.9986 3 360 5 15 25 30 55 75 360 360 Education * 1386 32.1717 42.788 1.1493 1 665 5 15 25 35 60 70 110 200 Education < High School 522 40.8736 64.533 2.8245 1 870 5 15 30 45 70 100 240 350 Education High School Graduate 1857 35.832 50.155 1.1639 1 600 5 15 25 40 63 90 135 270 Education < College 1305 36.0797 44.121 1.2214 1 540 5 15 25 45 70 95 150 225 Education College Graduate 913 34.9912 54.071 1.7895 1 705 5 15 20 40 60 90 150 340 Education Post Graduate 678 32.1475 42.82 1.6445 1 460 5 15 22 40 60 75 110 300 Census Region Northeast 1497 34.3287 51.244 1.3244 1 600 5 15 25 40 60 80 140 335 Census Region Midwest 1465 35.7802 54.521 1.4245 1 870 5 15 25 40 60 90 145 315 Census Region South 2340 35.0739 42.003 0.8683 1 510 5 15 30 40 60 90 135 214 Census Region West 1359 34.8874 50.399 1.3671 1 705 5 15 25 40 60 90 140 250 Day Of Week Weekday 4613 33.9035 46.663 0.687 1 870 5 15 25 40 60 85 135 240 Day Of Week Weekend 2048 37.5469 53.214 1.1759 1 600 5 15 30 45 65 90 150 300 Season Winter 1853 37.0232 50.658 1.1768 1 665 5 15 30 42 65 90 150 270 Season Spring 1747 36.6474 50.536 1.2091 1 870 5 15 30 45 60 90 135 240 Season Summer 1772 32.7788 44.543 1.0582 1 570 5 15 25 38 60 80 135 210 Season Fall 1289 33.0349 49.108 1.3678 1 540 5 11 20 35 60 90 140 303 Asthma No 6132 34.9204 48.833 0.6236 1 870 5 15 25 40 60 90 135 255 Asthma Yes 493 35.2495 38.157 1.7185 1 410 5 15 30 45 65 90 140 220 Asthma DK 36 49.5278 121.114 20.186 3 665 5 10 17.5 30 60 360 665 665 Angina No 6473 34.5801 46.79 0.5816 1 870 5 15 25 40 60 90 135 240 Angina Yes 145 51.9103 88.284 7.3316 3 600 7 20 30 45 75 185 546 570 Angina DK 43 44.8605 111.216 16.96 3 665 5 10 15 30 50 110 665 665 Bronchitis/ Emphysema No 6327 34.8211 48.073 0.6044 1 870 5 15 25 40 60 90 135 255 Bronchitis/ Emphysema Yes 296 36.8378 47.481 2.7598 1 600 5 15 30 43.5 60 90 180 250 Bronchitis/ Emphysema DK 38 54.6316 122.723 19.908 3 665 5 10 17.5 30 110 360 665 665 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 131 Table 15 115. Statistics for 24 Hour Cumulative Number of Minutes Spent at Home in the Bedroom Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 9151 563.12 184.644 1.9302 3 1440 300 460 540 660 780 880 1005 1141 Gender Male 4157 549.648 182.976 2.8379 3 1440 285 450 540 640 780 860 980 1095 Gender Female 4990 574.274 185.332 2.6236 5 1440 312 470 555 660 790 900 1030 1185 Gender Refused 4 648.75 122.772 61.386 540 785 540 545 635 752.5 785 785 785 785 Age ( years) * 184 525.065 193.498 14.265 15 1440 195 420 513 600 720 860 950 1295 Age ( years) 1 4 488 741.988 167.051 7.562 30 1440 489 635 740 840 930 990 1095 1200 Age ( years) 5 11 689 669.144 162.888 6.2055 35 1440 435 600 665 740 840 915 1065 1140 Age ( years) 12 17 577 636.189 210.883 8.7792 15 1375 165 542 645 750 875 970 1040 1210 Age ( years) 18 64 5891 532.699 172.964 2.2535 3 1440 295 440 520 610 723 820 975 1110 Age ( years) > 64 1322 550.8 171.997 4.7305 15 1440 315 475 540 610 735 840 1000 1140 Race White 7403 553.424 175.912 2.0445 3 1440 300 455 540 640 760 850 975 1105 Race Black 923 612.33 219.9 7.2381 15 1440 300 480 597 725 895 990 1160 1323 Race Asian 153 612.261 187.417 15.152 25 1285 345 510 600 705 830 950 1005 1245 Race Some Others 174 590.713 200.214 15.178 15 1405 300 464 580 700 830 960 1050 1152 Race Hispanic 378 602.577 214.353 11.025 25 1440 265 480 587.5 720 865 958 1095 1213 Race Refused 120 555.842 198.564 18.126 30 1405 285 440 534 630 762.5 875 1290 1295 Hispanic No 8326 560.878 182.574 2.0009 3 1440 300 460 540 650 780 870 1000 1140 Hispanic Yes 684 597.402 206.333 7.8893 15 1440 300 480 585 713 840 958 1095 1200 Hispanic DK 43 542.279 169.881 25.907 135 1002 300 420 555 660 756 830 1002 1002 Hispanic Refused 98 523.439 180.194 18.202 30 1295 255 415 515 600 735 795 930 1295 Employment * 1736 679.52 185.535 4.453 15 1440 390 590 675 785 892 960 1065 1170 Employment Full Time 3992 513.454 157.599 2.4943 3 1440 283 435 510 585 680 765 890 1000 Employment Part Time 777 551.613 169.425 6.0781 15 1335 330 455 540 630 750 835 1005 1100 Employment Not Employed 2578 566.409 191.218 3.7661 5 1440 300 478 540 650 780 905 1095 1223 Employment Refused 68 513.971 209.558 25.413 30 1440 210 420 497.5 585 725 795 1200 1440 Education * 1925 668.265 188.751 4.302 15 1440 360 575 663 780 885 960 1060 1170 Education < High School 807 554.809 180.581 6.3567 5 1440 300 450 540 630 775 860 1015 1160 Education High School Graduate 2549 534.057 176.208 3.4901 3 1440 285 447 520 607 720 835 975 1151 Education < College 1740 539.07 176.123 4.2222 5 1440 282 450 530 615 735 825 1005 1135 Education College Graduate 1223 526.025 164.899 4.7152 15 1404 300 445 515 600 713 785 965 1070 Education Post Graduate 907 525.192 160.567 5.3315 3 1355 315 445 510 600 690 780 950 1095 Census Region Northeast 2037 561.515 185.273 4.105 5 1440 300 457 540 655 781 885 1020 1139 Census Region Midwest 2045 552.402 179.232 3.9634 3 1440 280 450 540 643 765 860 965 1035 Census Region South 3156 570.023 186.38 3.3177 10 1440 300 465 552 660 790 900 1055 1155 Census Region West 1913 564.897 186.373 4.2611 5 1440 305 460 540 660 793 875 995 1152 Day Of Week Weekday 6169 552.611 174.489 2.2216 3 1440 325 450 539 635 760 855 975 1130 Day Of Week Weekend 2982 584.861 202.361 3.7057 3 1440 223 480 570 690 825 920 1055 1170 Season Winter 2475 576 183.782 3.6942 5 1440 305 475 555 660 805 900 1035 1148 Season Spring 2365 558.956 176.729 3.6341 15 1440 315 455 540 655 770 855 960 1095 Season Summer 2461 566.114 195.229 3.9354 3 1440 285 455 545 660 810 900 1030 1190 Season Fall 1850 547.23 179.924 4.1832 3 1440 270 450 537.5 630 750 850 960 1100 Asthma No 8420 560.814 182.769 1.9918 3 1440 300 460 540 655 780 870 1000 1140 Asthma Yes 671 593.846 201.517 7.7795 30 1440 300 475 580 690 835 946 1060 1327 Asthma DK 60 543.117 218.404 28.196 30 1295 223 423 540 605 760 982.5 1275 1295 Angina No 8836 564.211 183.935 1.9568 3 1440 300 460 540 660 785 880 1005 1140 Angina Yes 244 535.545 203.888 13.053 20 1440 215 450 522.5 612.5 770 840 1135 1230 Angina DK 71 522.113 193.937 23.016 30 1295 180 420 540 600 690 820 990 1295 Bronchitis/ Emphysema No 8660 563.08 184.244 1.9799 3 1440 300 460 540 660 780 880 1005 1141 Bronchitis/ Emphysema Yes 423 570.102 192.041 9.3373 15 1440 294 450 555 660 795 900 1055 1110 Bronchitis/ Emphysema DK 68 524.765 186.701 22.641 30 1295 240 420 540 600 700 820 930 1295 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 132 August 1997 Table 15 116. Statistics for 24 Hour Cumulative Number of Minutes Spent at Home in the Garage Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 193 117.782 144.451 10.398 1 790 5 20 60 150 296 480 665 690 Gender Male 120 144.058 162.612 14.844 2 790 10 30 93.5 182.5 315 518 675 690 Gender Female 73 74.589 94.322 11.04 1 530 5 15 30 120 180 240 450 530 Age ( years) * 1 20 * * 20 20 20 20 20 20 20 20 20 20 Age ( years) 1 4 4 83.5 47.459 23.729 15 120 15 52 99.5 115 120 120 120 120 Age ( years) 5 11 6 63.333 63.377 25.874 10 165 10 25 30 120 165 165 165 165 Age ( years) 12 17 12 80.833 78.383 22.627 10 240 10 20 50.5 147.5 185 240 240 240 Age ( years) 18 64 130 134.508 165.117 14.482 1 790 5 20 67.5 180 360 526 675 690 Age ( years) > 64 40 88.55 84.108 13.299 5 300 7.5 25 60 142.5 227.5 270 300 300 Race White 165 109.509 127.523 9.928 1 690 5 20 60 135 240 315 526 675 Race Black 12 205 219.483 63.359 5 570 5 37.5 90 405 530 570 570 570 Race Asian 1 5 * * 5 5 5 5 5 5 5 5 5 5 Race Some Others 6 186.333 308.416 125.91 10 790 10 18 30 240 790 790 790 790 Race Hispanic 8 120 164.859 58.287 15 510 15 22.5 60 135 510 510 510 510 Race Refused 1 120 * * 120 120 120 120 120 120 120 120 120 120 Hispanic No 174 116.615 138.452 10.496 1 690 5 20 60 155 296 460 570 675 Hispanic Yes 17 128.588 207.294 50.276 5 790 5 20 60 110 510 790 790 790 Hispanic Refused 2 127.5 10.607 7.5 120 135 120 120 127.5 135 135 135 135 135 Employment * 21 79.714 67.545 14.74 10 240 15 25 51 120 165 185 240 240 Employment Full Time 85 145.259 175.17 19 1 790 5 20 65 180 405 530 675 790 Employment Part Time 17 50.118 51.967 12.604 5 194 5 15 30 60 135 194 194 194 Employment Not Employed 70 112.271 127.392 15.226 5 690 5 30 75 135 255 450 480 690 Education * 22 76.545 67.572 14.406 10 240 10 20 50.5 120 165 185 240 240 Education < High School 14 188.929 195.036 52.126 5 675 5 30 120 235 510 675 675 675 Education High School Graduate 63 127.286 159.283 20.068 2 690 5 25 60 165 300 530 665 690 Education < College 48 121.583 147.764 21.328 5 790 10 30 60 140 296 450 790 790 Education College Graduate 25 118.2 145.773 29.155 5 480 5 20 60 120 405 460 480 480 Education Post Graduate 21 75.857 88.067 19.218 1 300 2 10 30 120 195 260 300 300 Census Region Northeast 23 137.174 159.451 33.248 5 510 15 30 60 195 460 510 510 510 Census Region Midwest 42 131.381 166.398 25.676 10 690 20 40 87.5 120 260 665 690 690 Census Region South 60 103.683 128.598 16.602 2 570 5 12.5 52.5 127.5 283 427.5 480 570 Census Region West 68 115.265 139.682 16.939 1 790 5 20 72.5 152.5 300 315 530 790 Day Of Week Weekday 116 128.664 158.968 14.76 1 790 5 25 60 165 315 510 665 690 Day Of Week Weekend 77 101.39 118.416 13.495 2 675 10 20 60 120 240 300 526 675 Season Winter 51 115.608 161.848 22.663 2 690 5 15 50 150 240 526 665 690 Season Spring 59 136.763 163.341 21.265 5 790 10 30 90 165 315 570 675 790 Season Summer 51 101.078 121.329 16.989 1 530 5 20 60 120 260 450 460 530 Season Fall 32 112.875 110.217 19.484 5 480 10 25 85 157.5 240 315 480 480 Asthma No 184 118.598 146.349 10.789 1 790 5 25 60 150 300 480 665 690 Asthma Yes 9 101.111 102.585 34.195 5 270 5 15 60 180 270 270 270 270 Angina No 187 118.219 146.174 10.689 1 790 5 20 60 150 300 480 665 690 Angina Yes 6 104.167 78.639 32.104 10 220 10 25 110 150 220 220 220 220 Bronchitis/ Emphysema No 185 114.146 142.947 10.51 1 790 5 20 60 135 260 480 665 690 Bronchitis/ Emphysema Yes 8 201.875 163.64 57.856 15 450 15 60 177.5 337.5 450 450 450 450 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 133 Table 15 117. Statistics for 24 Hour Cumulative Number of Minutes Spent in the Basement Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 274 142.15 162.882 9.84 1 931 10 30 90 180 330 535 705 765 Gender Male 132 160.386 180.747 15.732 1 931 10 40 90 202.5 490 565 720 765 Gender Female 141 125.66 143.283 12.067 2 810 10 30 75 175 265 420 705 720 Gender Refused 1 60 * * 60 60 60 60 60 60 60 60 60 60 Age ( years) * 3 171.667 122.712 70.848 30 245 30 30 240 245 245 245 245 245 Age ( years) 1 4 8 94.75 55.695 19.691 28 180 28 47.5 90 137.5 180 180 180 180 Age ( years) 5 11 25 135.4 145.945 29.189 15 705 15 60 105 140 270 420 705 705 Age ( years) 12 17 26 97.462 113.063 22.173 1 515 10 30 60 150 240 275 515 515 Age ( years) 18 64 170 151.271 172.66 13.242 1 810 5 30 90 210 410 555 720 765 Age ( years) > 64 42 143.833 173.502 26.772 5 931 10 40 90 170 330 455 931 931 Race White 248 133.75 154.08 9.784 1 810 10 30 90 167.5 315 510 705 720 Race Black 15 183.8 165.472 42.725 12 515 12 40 150 270 450 515 515 515 Race Asian 2 135 106.066 75 60 210 60 60 135 210 210 210 210 210 Race Some Others 3 468.667 455.654 263.072 20 931 20 20 455 931 931 931 931 931 Race Hispanic 1 30 * * 30 30 30 30 30 30 30 30 30 30 Race Refused 5 263.2 173.071 77.4 60 540 60 231 240 245 540 540 540 540 Hispanic No 263 139.046 161.666 9.969 1 931 10 30 90 180 330 510 705 765 Hispanic Yes 6 185 197.332 80.561 15 555 15 30 150 210 555 555 555 555 Hispanic DK 1 185 * * 185 185 185 185 185 185 185 185 185 185 Hispanic Refused 4 271.25 198.762 99.381 60 540 60 150 242.5 392.5 540 540 540 540 Employment * 57 115.561 124.205 16.451 1 705 12 40 90 150 240 420 515 705 Employment Full Time 107 149.075 178.633 17.269 1 810 5 30 75 210 450 540 720 765 Employment Part Time 22 115 114.808 24.477 10 535 25 60 77.5 150 185 290 535 535 Employment Not Employed 85 157.953 176.347 19.128 5 931 10 35 120 210 330 600 720 931 Employment Refused 3 151.667 110.265 63.661 30 245 30 30 180 245 245 245 245 245 Education * 65 129.492 133.447 16.552 1 705 15 45 90 160 270 420 535 705 Education < High School 15 169.867 203.464 52.534 5 605 5 30 90 255 565 605 605 605 Education High School Graduate 78 159.385 188.681 21.364 5 810 5 40 90 195 420 720 765 810 Education < College 48 160.583 184.204 26.588 2 931 10 25 120 202.5 400 600 931 931 Education College Graduate 39 146.744 150.808 24.149 10 555 10 30 70 210 450 510 555 555 Education Post Graduate 29 73.138 66.272 12.306 1 245 10 30 60 100 210 210 245 245 Census Region Northeast 90 115.611 118.744 12.517 5 555 10 40 72.5 150 250 400 540 555 Census Region Midwest 123 129.024 146.939 13.249 2 765 10 30 90 180 270 510 605 630 Census Region South 35 187.971 205.847 34.794 10 931 28 45 110 255 450 720 931 931 Census Region West 26 234.423 247.688 48.576 1 810 1 30 165 325 705 720 810 810 Day Of Week Weekday 178 135.331 159.404 11.948 1 810 10 30 82.5 180 315 535 720 765 Day Of Week Weekend 96 154.792 169.263 17.275 5 931 10 50 97.5 190 450 540 600 931 Season Winter 80 144.475 147.022 16.438 5 630 13.5 30 90 220.5 315 480 610 630 Season Spring 65 174.215 196.783 24.408 1 931 5 60 105 210 490 555 810 931 Season Summer 79 142.367 180.698 20.33 1 765 5 30 85 150 455 605 720 765 Season Fall 50 96.4 83.08 11.749 5 332 10 30 60 145 240 255 301 332 Asthma No 253 143.126 164.183 10.322 1 931 10 35 90 180 330 540 705 765 Asthma Yes 20 124.65 150.961 33.756 1 510 5.5 16 72.5 177.5 382.5 510 510 510 Asthma DK 1 245 * * 245 245 245 245 245 245 245 245 245 245 Angina No 269 141.409 163.736 9.983 1 931 10 30 90 180 330 535 705 765 Angina Yes 3 201.667 122.1 70.494 65 300 65 65 240 300 300 300 300 300 Angina DK 2 152.5 130.815 92.5 60 245 60 60 152.5 245 245 245 245 245 Bronchitis/ Emphysema No 265 138.996 160.98 9.889 1 931 10 30 90 180 330 515 705 765 Bronchitis/ Emphysema Yes 8 233.75 214.172 75.721 20 605 20 67.5 180 375 605 605 605 605 Bronchitis/ Emphysema DK 1 245 * * 245 245 245 245 245 245 245 245 245 245 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 134 August 1997 Table 15 118. Statistics for 24 Hour Cumulative Number of Minutes Spent at Home in the Utility Room or Laundry Room Percentiles Group Name Group Code N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 458 73.218 71.872 3.358 1 510 5 25 60 100 150 200 300 360 Gender Male 70 78.443 95.687 11.437 1 510 5 20 60 90 167.5 345 360 510 Gender Female 388 72.276 66.796 3.391 2 510 5 28 60 105 150 190 240 330 Age ( years) * 6 65.833 34.412 14.049 25 120 25 40 60 90 120 120 120 120 Age ( years) 1 4 3 75 116.94 67.515 5 210 5 5 10 210 210 210 210 210 Age ( years) 5 11 3 105.667 168.423 97.239 2 300 2 2 15 300 300 300 300 300 Age ( years) 12 17 8 55.5 77.107 27.261 1 240 1 17 33 52.5 240 240 240 240 Age ( years) 18 64 362 73.58 73.87 3.882 2 510 5 20 60 105 150 195 325 405 Age ( years) > 64 76 72.592 58.092 6.664 2 345 10 30 60 90 150 180 245 345 Race White 400 69.243 65.801 3.29 2 510 5 25 60 90 150 180 258 352.5 Race Black 35 100.514 103.238 17.45 1 510 5 20 60 135 240 300 510 510 Race Asian 4 82.5 37.749 18.875 30 120 30 60 90 105 120 120 120 120 Race Some Others 6 86.667 27.869 11.377 60 120 60 65 78 120 120 120 120 120 Race Hispanic 10 95.9 78.827 24.927 4 225 4 20 105 120 217.5 225 225 225 Race Refused 3 170 264.15 152.507 15 475 15 15 20 475 475 475 475 475 Hispanic No 435 72.069 69.87 3.35 1 510 5 25 60 90 150 190 300 360 Hispanic Yes 20 81.7 62.982 14.083 4 225 4.5 40 60 120 182.5 218 225 225 Hispanic DK 1 55 * * 55 55 55 55 55 55 55 55 55 55 Hispanic Refused 2 247.5 321.734 227.5 20 475 20 20 248 475 475 475 475 475 Employment * 12 76.75 107.831 31.128 1 300 1 4 23 135 240 300 300 300 Employment Full Time 206 69.184 78.438 5.465 2 510 5 20 60 90 135 203 360 405 Employment Part Time 51 72.216 62.506 8.753 2 225 5 15 55 120 150 180 225 225 Employment Not Employed 187 77.679 63.835 4.668 5 475 10 30 60 115 150 180 245 345 Employment Refused 2 76 104.652 74 2 150 2 2 76 150 150 150 150 150 Education * 17 72 90.881 22.042 1 300 1 10 35 90 240 300 300 300 Education < High School 51 71.765 49.445 6.924 15 245 20 30 60 90 120 180 195 245 Education High School Graduate 163 71.583 71.583 5.607 2 510 6 30 60 90 140 180 325 405 Education < College 107 77.234 71.721 6.934 2 475 5 20 60 120 155 200 225 240 Education College Gradutae 60 74.033 77.252 9.973 5 510 10 27 60 97.5 154 190 203 510 Education Post Graduate 60 71.267 79.857 10.31 5 360 5 18 60 90 155 263 360 360 Census Region Northeast 105 80.933 84.595 8.256 2 510 5 25 60 120 180 225 345 360 Census Region Midwest 116 64.948 63.307 5.878 2 475 5 15 60 90 135 155 215 240 Census Region South 151 72.695 69.541 5.659 1 510 10 30 60 90 150 210 245 330 Census Region West 86 75.872 69.9 7.537 4 405 5 30 60 115 150 180 360 405 Day Of Week Weekday 322 68.643 66.724 3.718 1 510 5 23 60 90 140 180 240 345 Day Of Week Weekend 136 84.051 82.05 7.036 5 510 10 30 60 120 180 240 360 405 Season Winter 145 75.248 80.989 6.726 1 510 5 17 60 90 165 215 360 475 Season Spring 89 81.888 83.016 8.8 5 510 10 30 60 100 180 240 405 510 Season Summer 132 69.25 60.815 5.293 2 360 5 25 60 120 135 155 240 325 Season Fall 92 67.326 58.613 6.111 3 345 10 22 60 90 125 180 245 345 Asthma No 432 73.764 73.182 3.521 1 510 5 25 60 105 150 200 325 360 Asthma Yes 26 64.154 44.791 8.784 10 200 10 25 60 90 120 130 200 200 Angina No 440 72.134 70.217 3.347 1 510 5 25 60 100 150 185 270 360 Angina Yes 16 103.125 109.877 27.469 5 360 5 30 60 138 345 360 360 360 Angina DK 2 72.5 17.678 12.5 60 85 60 60 73 85 85 85 85 85 Bronchitis/ emphysema No 428 73.276 73.484 3.552 1 510 5 24 60 105 150 200 325 360 Bronchitis/ emphysema Yes 30 72.4 43.498 7.942 10 200 15 45 60 90 125 150 200 200 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 135 Table 15 119. Statistics for 24 Hour Cumulative Number of Minutes Spent at Home in the Outdoor Pool or Spa Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 85 115.318 103.713 11.249 1 450 15 34 90 150 255 360 450 450 Gender Male 34 113.676 106.758 18.309 5 450 10 45 75 150 258 360 450 450 Gender Female 51 116.412 102.691 14.38 1 450 15 30 90 178 240 360 390 450 Age ( years) * 2 60 63.64 45 15 105 15 15 60 105 105 105 105 105 Age ( years) 1 4 9 85.556 86.329 28.776 15 255 15 30 60 75 255 255 255 255 Age ( years) 5 11 15 164.2 103.969 26.845 25 450 25 105 140 185 300 450 450 450 Age ( years) 12 17 5 97 53.805 24.062 40 180 40 60 100 105 180 180 180 180 Age ( years) 18 64 44 117.614 112.718 16.993 4 450 15 32 82.5 155 297 360 450 450 Age ( years) > 64 10 78.9 85.318 26.98 1 258 1 20 52.5 90 226.5 258 258 258 Race White 75 120.893 107.723 12.439 1 450 15 34 90 180 258 360 450 450 Race Black 5 66 59.729 26.711 10 150 10 20 45 105 150 150 150 150 Race Some Others 1 105 * * 105 105 105 105 105 105 105 105 105 105 Race Hispanic 2 112.5 53.033 37.5 75 150 75 75 112.5 150 150 150 150 150 Race Refused 2 37.5 31.82 22.5 15 60 15 15 37.5 60 60 60 60 60 Hispanic No 78 116.821 104.631 11.847 1 450 10 34 90 160 255 360 450 450 Hispanic Yes 5 123 108.374 48.466 30 300 30 60 75 150 300 300 300 300 Hispanic Refused 2 37.5 31.82 22.5 15 60 15 15 37.5 60 60 60 60 60 Employment * 29 128.207 96.956 18.004 15 450 20 60 105 178 255 300 450 450 Employment Full Time 27 111.889 102.499 19.726 4 390 10 30 90 150 297 360 390 390 Employment Part Time 2 237.5 300.52 212.5 25 450 25 25 237.5 450 450 450 450 450 Employment Not Employed 26 98.962 94.835 18.599 1 360 5 30 67.5 130 240 258 360 360 Employment Refused 1 15 * * 15 15 15 15 15 15 15 15 15 15 Education * 30 124.433 97.486 17.798 15 450 15 60 105 178 250 300 450 450 Education < High School 8 109.375 155.367 54.93 5 450 5 15 37.5 157.5 450 450 450 450 Education High School Graduate 15 150 130.516 33.699 1 390 1 45 105 240 360 390 390 390 Education < College 17 80.529 66.66 16.167 4 240 4 30 75 90 225 240 240 240 Education College Graduate 9 120.556 107.308 35.769 15 297 15 30 85 180 297 297 297 297 Education Post Graduate 6 81.667 42.032 17.159 30 135 30 60 67.5 130 135 135 135 135 Census Region Northeast 23 135.348 113.518 23.67 1 450 10 40 100 225 245 297 450 450 Census Region Midwest 16 64.625 63.636 15.909 4 255 4 25 52.5 82.5 135 255 255 255 Census Region South 23 114.696 78.499 16.368 15 390 20 60 105 150 185 210 390 390 Census Region West 23 131.174 129.262 26.953 15 450 25 30 75 195 360 360 450 450 Day Of Week Weekday 56 114.464 106.726 14.262 1 450 5 30 90 155 255 390 450 450 Day Of Week Weekend 29 116.966 99.452 18.468 10 360 20 45 85 150 297 360 360 360 Season Winter 10 118.9 159.415 50.412 4 450 4 20 30 135 405 450 450 450 Season Spring 24 97.417 74.622 15.232 10 360 30 52.5 80 120 180 195 360 360 Season Summer 47 124.511 104.25 15.206 1 450 15 40 90 185 255 300 450 450 Season Fall 4 105.75 107.481 53.741 30 258 30 30 67.5 181.5 258 258 258 258 Asthma No 73 109.89 105.481 12.346 1 450 10 30 75 140 255 360 450 450 Asthma Yes 11 160.455 82.355 24.831 85 360 85 90 150 225 225 360 360 360 Asthma DK 1 15 * * 15 15 15 15 15 15 15 15 15 15 Angina No 84 116.512 103.746 11.32 1 450 15 37 90 155 255 360 450 450 Angina DK 1 15 * * 15 15 15 15 15 15 15 15 15 15 Bronchitis/ Emphysema No 78 115.731 101.786 11.525 1 450 10 40 90 150 255 360 450 450 Bronchitis/ Emphysema Yes 6 126.667 137.792 56.253 15 360 15 25 67.5 225 360 360 360 360 Bronchitis/ Emphysema DK 1 15 * * 15 15 15 15 15 15 15 15 15 15 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 136 August 1997 Table 15 120. Statistics for 24 Hour Cumulative Number of Minutes Spent at Home in the Yard or Other Areas Outside the House Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 2308 137.587 144.112 2.9997 1 1290 10 40 90 180 320 420 570 660 Gender Male 1198 158.448 160.016 4.6231 1 1290 10 60 120 198 360 500 627 730 Gender Female 1107 114.887 120.869 3.6328 1 1065 5 30 75 150 285 360 450 560 Gender Refused 3 183.333 60.277 34.801 120 240 120 120 190 240 240 240 240 240 Age ( years) * 27 167.37 164.484 31.6549 2 600 5 60 120 230 395 600 600 600 Age ( years) 1 4 151 135.311 111.483 9.0723 5 630 25 60 90 180 305 345 450 480 Age ( years) 5 11 271 150.594 135.111 8.2074 2 1250 20 60 120 190 310 405 553 570 Age ( years) 12 17 157 113.153 117.746 9.3972 2 660 5 30 80 150 240 405 462 610 Age ( years) 18 64 1301 136.382 147.923 4.1011 1 1080 5 30 90 180 330 435 570 715 Age ( years) > 64 401 141.125 155.213 7.751 1 1290 10 45 90 180 302 465 598 660 Race White 1966 139.037 145.534 3.2823 1 1290 10 40 90 180 330 435 570 670 Race Black 173 128.416 144.607 10.9943 1 1250 5 30 95 180 270 390 462 745 Race Asian 21 101.19 88.485 19.3091 12 360 15 35 90 125 210 240 360 360 Race Some Others 37 183.541 161.858 26.6094 2 750 3 84 120 270 380 553 750 750 Race Hispanic 83 106.108 96.781 10.6231 2 610 5 35 75 145 240 270 330 610 Race Refused 28 152.321 151.049 28.5455 5 600 5 60 97.5 210 360 510 600 600 Hispanic No 2122 137.711 144.33 3.1332 1 1290 10 40 90 180 320 420 570 670 Hispanic Yes 153 125 134.265 10.8547 1 750 5 30 85 150 270 435 575 630 Hispanic DK 10 213.8 192.232 60.7892 3 585 3 60 145 380 503 585 585 585 Hispanic Refused 23 176.739 156.551 32.6431 5 600 5 60 160 240 360 510 600 600 Employment * 581 137.501 125.562 5.2092 2 1250 15 60 110 180 300 370 480 570 Employment Full Time 807 131.087 150.703 5.305 1 1080 5 30 80 175 307 450 600 745 Employment Part Time 166 126.145 134.084 10.407 1 1080 10 30 77.5 180 300 360 450 485 Employment Not Employed 739 146.097 149.672 5.5058 1 1290 10 45 100 185 360 465 585 655 Employment Refused 15 198 239.029 61.7171 5 660 5 30 120 465 600 660 660 660 Education * 615 136.348 125.656 5.0669 2 1250 15 60 105 180 300 370 480 570 Education < High School 236 161.017 186.469 12.1381 2 1290 10 45 105 195 390 510 765 915 Education High School Graduate 618 144.706 144.929 5.8299 1 840 5 40 100 195 360 479 555 660 Education < College 381 128.843 141.194 7.2336 1 1080 5 35 85 175 300 400 585 720 Education College Graduate 251 122.968 135.802 8.5717 1 750 10 30 75 160 300 390 575 690 Education Post Graduate 207 127.126 149.975 10.424 1 1065 5 30 78 150 320 435 570 630 Census Region Northeast 473 137.67 132.769 6.1047 1 750 10 45 90 185 317 420 532 600 Census Region Midwest 456 138.853 155.656 7.2893 2 1290 10 45 90 180 300 440 575 690 Census Region South 832 136.472 146.655 5.0843 1 1080 10 35 90 180 310 420 570 730 Census Region West 547 138.155 139.946 5.9837 1 750 5 36 90 180 330 460 570 630 Day Of Week Weekday 1453 126.919 131.579 3.4519 1 1250 5 35 90 165 300 395 553 610 Day Of Week Weekend 855 155.716 161.693 5.5298 1 1290 10 45 110 210 360 475 630 745 Season Winter 399 112.19 135.967 6.8068 1 1080 5 30 60 140 300 380 540 690 Season Spring 787 149.738 139.245 4.9635 1 915 10 60 120 195 338 430 555 660 Season Summer 796 143.681 155.886 5.5252 1 1290 10 45 99 180 330 450 610 715 Season Fall 326 124.457 130.523 7.229 1 720 10 35 87.5 160 300 380 510 655 Asthma No 2129 137.746 144.41 3.1297 1 1290 10 40 90 180 315 420 570 690 Asthma Yes 166 131.566 136.006 10.5561 1 670 10 30 90 165 345 450 553 610 Asthma DK 13 188.462 192.141 53.2904 5 600 5 60 90 300 480 600 600 600 Angina No 2228 136.521 141.088 2.989 1 1290 10 41 90 180 315 420 570 660 Angina Yes 63 158.683 216.341 27.2564 2 1080 5 30 75 180 420 485 1065 1080 Angina DK 17 199.118 191.305 46.3983 5 600 5 35 120 325 480 600 600 600 Bronchitis/ Emphysema No 2191 138.793 144.994 3.0976 1 1290 10 45 90 180 320 430 570 690 Bronchitis/ Emphysema Yes 105 104.438 111.282 10.86 1 553 5 30 60 145 270 360 415 475 Bronchitis/ Emphysema DK 12 207.5 192.23 55.4919 5 600 5 60 140 330 480 600 600 600 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Exposure Factors Handbook Page August 1997 15 137 Table 15 121. Statistics for 24 Hour Cumulative Number of Minutes Spent Traveling in a Car Percentiles Category Population Group N Mean Stdev Stderr Min Max 5 25 50 75 90 95 98 99 All 6560 87.4261 88.186 1.0888 1 1280 10 34 63 110 175 240 345 450 Gender Male 2852 90.7398 97.337 1.8227 1 1280 10 30 63 115 185 254 360 526 Gender Female 3706 84.9069 80.374 1.3203 1 878 10 35 63.5 110 165 220 335 420 Gender Refused 2 30 14.142 10 20 40 20 20 30 40 40 40 40 40 Age ( years) * 120 94.025 90.218 8.2358 7 593 10 37.5 71.5 120 180 222.5 435 450 Age ( years) 1 4 297 63.0101 56.758 3.2934 2 390 10 25 45 80 135 180 235 270 Age ( years) 5 11 449 64.6325 81.08 3.8264 1 900 5 20 40 85 145 175 310 345 Age ( years) 12 17 393 64.8346 70.974 3.5802 1 630 9 20 41 80 136 185 300 380 Age ( years) 18 64 4489 93.8278 92.302 1.3776 1 1280 13 40 70 120 184 250 360 495 Age ( years) > 64 812 83.5283 79.436 2.7877 4 780 10 30 60 110 165 225 315 405 Race White 5337 87.6283 89.72 1.2281 1 1280 10 31 64 110 175 240 360 460 Race Black 640 86.8063 74.343 2.9387 1 690 10 35 65 115 180 240 305 330 Race Asian 117 78.7607 66.315 6.1309 5 360 20 35 60 95 135 225 320 330 Race Some Others 121 87.6942 84.48 7.68 3 540 10 30 60 120 180 250 330 345 Race Hispanic 265 90.0717 101.474 6.2335 2 825 15 35 65 100 165 235 465 620 Race Refused 80 82.4 73.314 8.1967 5 420 12 30 60 120 167.5 229.5 315 420 Hispanic No 5987 87.4657 87.603 1.1322 1 1280 10 35 65 110 175 240 345 440 Hispanic Yes 477 88.543 97.206 4.4507 2 825 10 30 60 103 180 240 388 595 Hispanic DK 29 63.8966 73.131 13.5801 5 325 6 20 40 60 187 200 325 325 Hispanic Refused 67 86.1194 78.361 9.5733 5 420 14 30 60 120 180 239 315 420 Employment * 1124 64.2482 72.331 2.1575 1 900 5 20 45 81 136 180 270 345 Employment Full Time 3134 93.5568 92.167 1.6464 2 1280 15 40 70 120 180 242 360 490 Employment Part Time 632 90.0506 81.969 3.2605 2 878 10 40 70 116.5 175 230 330 384 Employment Not Employed 1629 90.3603 90.224 2.2354 1 780 10 35 60 115 195 250 365 465 Employment Refused 41 97.1707 83.994 13.1176 10 330 15 30 75 120 220 290 330 330 Education * 1260 66.531 72.305 2.0369 1 900 6 21 45 85 145 186.5 270 350 Education < High School 434 86.0115 82.143 3.943 5 620 10 35 60 115 165 210 360 455 Education High School Graduate 1805 91.8476 91.088 2.144 1 870 10 38 65 115 190 255 385 465 Education < College 1335 93.2427 94.302 2.581 2 1280 10 36 70 120 180 250 380 460 Education College Graduate 992 95.6683 95.468 3.0311 4 840 14 40 73 120 185 250 370 580 Education Post Graduate 734 91.5395 82.009 3.027 4 905 20 40 75 115 175 235 330 380 Census Region Northeast 1412 85.8343 83.847 2.2314 1 780 10 33 60 110 170 240 330 410 Census Region Midwest 1492 89.0992 86.623 2.2426 4 825 10 35 65 112.5 180 250 360 465 Census Region South 2251 88.2625 89.347 1.8832 1 900 10 34 65 115 175 235 338 490 Census Region West 1405 85.9089 92.167 2.4589 2 1280 10 30 60 110 175 235 345 435 Day Of Week Weekday 4427 83.9248 85.023 1.2779 1 905 10 30 60 105 165 225 330 440 Day Of Week Weekend 2133 94.6929 94.018 2.0357 1 1280 10 35 70 120 190 265 360 455 Season Winter 1703 83.4692 82.128 1.9902 1 870 10 30 60 105 165 230 350 425 Season Spring 1735 88.589 91.537 2.1976 1 905 10 30 60 110 180 250 380 480 Season Summer 1767 88.0266 86.471 2.0571 1 900 10 35 65 115 170 235 330 450 Season Fall 1355 90.1269 93.173 2.5312 1 1280 10 35 70 115 170 240 335 545 Asthma No 6063 87.4143 88.032 1.1306 1 1280 10 34 63 110 175 240 350 450 Asthma Yes 463 88.2419 92.088 4.2797 4 870 15 34 64 110 165 245 345 505 Asthma DK 34 78.4118 57.362 9.8376 10 239 10 30 71 100 160 220 239 239 Angina No 6368 87.54 88.695 1.1115 1 1280 10 34 63.5 110 175 240 350 450 Angina Yes 154 82.1753 68.568 5.5254 8 365 10 30 60 115 162 214 285 320 Angina DK 38 89.6053 72.877 11.8221 10 360 10 35 73.5 120 180 239 360 360 Bronchitis/ Emphysema No 6224 87.5517 88.855 1.1263 1 1280 10 34 62 110 175 240 350 450 Bronchitis/ Emphysema Yes 300 85.5833 76.155 4.3968 1 505 10 35 68.5 109 185 237.5 305 435 Bronchitis/ Emphysema DK 36 81.0556 63.142 10.5237 5 239 10 30 71 120 175 220 239 239 Note: A "*" Signifies missing data. " DK" = The respondent replied " don't know". Refused = Refused data. N = doer sample size. Mean = Mean 24 hour cumulative number of minutes for doers. Stdev = standard deviation. Stderr = standard error. Min = minimum number of minutes. Max = maximum number of minutes. Percentiles are the percentage of doers below or equal to a given number of minutes. Source: Tsang and Klepeis, 1996. Volume III  Activity Factors Chapter 15  Activity Factors Page Exposure Factors Handbook 15 138 August 1997 Table 15 122. Statistics for 24 Hour Cumulative Number of Minutes Spent Traveling in a Truck ( Pick up/ Van)