what is average radon level
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Colorado Radon Information According to a national residential radon survey completed in 1991, the average indoor radon level in the United States is 1.3 picocuries per liter (pCi/L). The average outdoor level is about 0.4 pCi/L. Excessive radon levels have been found in all of the 50 states.
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Pennsylvania Radon Information Estimated lung cancer deaths per year in Pennsylvania due to residential radon exposure is between 860 - 3,800. An estimated 40% of Pennsylvania homes have radon levels greater than the EPA guideline of 4 pCi/L. Forty-nine of Pennsylvania's 67 counties have a predicted average indoor level greater than 4 pCi/L.
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- A buyer may want to have a confirmatory test conducted. With an average radon level of 4 pCi/L or greater, it is recommended that a radon mitigation system be installed prior to placing the house on the market, to bring the radon level to less than 4 pCi/L.
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Frequently Asked Questions 5. The average cost of a radon system is between $800 – $1200. Homes with a crawl space, no gravel under the slab, or a completely finished lower level, sometimes cost more.return to the top.he average cost of a radon system is between $800 – $1200. Homes with a crawl space, no gravel under the slab, or a completely finished lower level, sometimes cost more.
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Health effects of radon For levels of 20 picocuries radon per liter of air (800 Bq/m3) or higher, the home owner should consider some type of procedure to decrease indoor radon levels. For instance, as radon has a half-life of four days, opening the windows once a day can cut the mean radon concentration to one fourth of its level.
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Frequently Asked Questions About Radon So if you get a short-term result of 3 pCi/L, you can expect you long-term radon to be within the range from 1 to 9 pCi/L. A yearlong test in a living space where you spend a lot of time would be the most efficient and effective way for the first assessment of the radon hazard in your home.
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Radon (A Citizen's Guide to Radon) Radon is a naturally occurring radioactive gas that is colorless, odorless, and tasteless. It is formed by the natural breakdown of uranium in rock, soil and water.Radon gas moves up through the soil and can be drawn into our homes by slight pressure differences.ortunately, radon levels in homes, schools and buildings can be measured with a simple test. Testing for radon is easy, inexpensive and effective. If high radon levels are found, they can be reduced by using proven mitigation techniques.
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- The US EPA recommends that the level of radon in a home be reduced below 4.0 pCi/L. In Europe and Canada they use Becquerel's per cubic meter (Bq/m 3). Four pCi/L is about equal to 150 Bq/m 3.
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Should I Test for Radon During My Home Inspection? According to a national residential radon survey completed in 1991, the average indoor radon level in the United States is 1.3 picocuries per liter (pCi/L). The average outdoor level is about 0.4 pCi/L.
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- Radon is a naturally occurring radioactive gas released when uranium in soil and/or rock breaks down. Radon is invisible, odourless and tasteless. Radon does not tend to be a health issue outdoors, as atmospheric mixing dilutes the gas to low concentrations.here are two options to test buildings for radon: 1  Do-it-yourself radon test kit. 2  Can be purchased over the internet, at local hardware, home improvement, or building supply stores, or from Ottawa Public Health*. 3  The cost of testing ranges from $25 - $170. * 4 to purchase a kit from Ottawa Public Health, please call: 613-580-6744. 5  Hire a radon 6  .... Fo
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Safe Radon Levels The lower the radon level in your home, the lower your family's risk of lung cancer.. The average person receives a higher dose of radiation from the radon levels in their home than from their combined exposure to all other radiation sources, natural or man-made.
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- Currently there is no federally enforced drinking water standard for radon. The EPA is proposing that radon levels in drinking water from public systems be below 300 pCi/L, or alternatively below 4000 pCi/L if a multimedia mitigation plan for indoor air is developed by the state.
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Background radiation record radiation levels were found in a house where the effective dose due to ambient radiation fields was 131 msv a 13 1 rem yr and the internal committed dose from radon was 72 msv a 7 2 rem yr this unique case is over 80 times higher than the world average natural human exposure to radiation
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Safe Radon Levels A safe level of radon gas is no radon gas. Radon gas is a carcinogen which causes lung cancer. The US EPA has put it plainly, stating, Any radon exposure has some risk of causing lung cancer. The lower the radon level in your home, the lower your family's risk of lung cancer..
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There is no Safe Radon Level! Outdoor radon levels in the U.S. range from 0.02 to 0.75 pCi/L (picoCuries per liter), averaging 0.4 pCi/L. But homes draw concentrated radon gas from the ground. Because radon is nine times heavier than air, elevated radon levels build up in basements and on lower floors.
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How Radon Gas Sneaks into Homes As a rule of thumb, each 10,000 pCi/L of radon in water increases its level in indoor air by 1 pCi/L. Inhalation of the radon gas released into air is much more dangerous than its ingestion with drinking water. In the U.S., the average radon concentration in surface water is 10 pCi/L but 750 pC/L in well water. However, levels exceeding 20,000 pCi/L are not uncommon. Even some public water supplies have been found to have radon concentrations up to 270,000 pCi/L (NAS 1999b).
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Is It Safe to Buy a Home With an Elevated Radon Level? If a radon test reveals high levels—anything above 4 pCi/L—ask for a walk-through with an EPA-licensed radon remediation specialist. You can find one through your state radon office. Most will provide a free remediation estimate, and, if the work is done, guarantee that radon levels will be acceptable.
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Safe Radon Levels Radon gas is a naturally-occurring byproduct of the radioactive decay of Uranium in the soil. Depending on your geographic location, the radon levels of the air you breathe outside of your home may be as high as 0.75 pCi/L.adon gas is a carcinogen which causes lung cancer. The US EPA has put it plainly, stating, Any radon exposure has some risk of causing lung cancer. The lower the radon level in your home, the lower your family's risk of lung cancer..
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- Based on an assumed average. equilibrium fraction of 40% between radon and its decay products and an indoor. occupancy of 70%, the estimated risks from lifetime exposure at the 4 pCi/L action level. are: 2.3% (all), 4.1% (ES), and 0.73% (NS).
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There is no Safe Radon Level! Yet, the average person receives a higher radiation dose from radon at home than from all other natural or man-made sources combined. Outdoor radon levels in the U.S. range from 0.02 to 0.75 pCi/L (picoCuries per liter), averaging 0.4 pCi/L. But homes draw concentrated radon gas from the ground.Because radon is nine times heavier than air, elevated radon levels build up in basements and on lower floors.early 8 million US homes, or 1 out of every 15, have radon levels above the EPA's 4 pCi/L action limit and nearly 1 out of 6 exceed the EPA's 2 pCi/L consider action limit.
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Extreme Elevated Radon Levels This followed up with other neighbor's home having levels of 1800, 2500 and 2748 pCi/l. One home had a level that was 3,715 pCi/l. This home was the highest indoor radon level ever measured in Pennsylvania. We were able to reduce the radon levels in this home to less than 3.0 pCi/l. In 2016 a home in the development measured around 2200 pCi/l with the passive system installed by the builder and over 6000 pCi/l when the passive system was capped.
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Radon Testing If the annual average level of radon in a home is above 4.0 pCi/L, the EPA and MDH recommend that steps be taken to lower it. While it isn't possible to reduce radon to zero, the best approach is to lower the radon level as much as possible.he Environmental Protection Agency and MDH set the recommended action level for radon at 4.0 picocuries/liter(pCi/L). To apply the recommended action level correctly, the results should be based on the annual average level of radon measured in a home.
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How long do female dogs in heat bleed for? When is it safe... A radon test kit should cost between $5 and $25, depending on they type of kit. Make sure the price includes laboratory analysis. If you choose to hire someone to test your home, it will be more expensive.
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- If the radon concentration is less than 4 pCi/L, consult a mitigation company to. determine whether the radon level can be brought down further. In New Jersey, radon levels. have been brought to less than 1 pCi/L in sixty percent of the homes in which radon mitigation. has taken place.
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Learn About Radon Testing Understanding the Results of Your Radon Test. Radon is present in small amounts in the air throughout the world. The average level of radon in outdoor air is 0.4 pCi/L (pico Curies per Liter), and the average level in indoor air is 1.3 pCi/L. The EPA recommends fixing your home if the radon level is above 4 pCi/L.
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Radon Testing EPA recommends taking action to reduce radon in homes that have a radon level at or above 4 picocuries per liter (pCi/L) of air. Radon is measured in picocuries per liter of air (pCi/L). The lower the average pCi/L level in the air you breathe, the lower your risk of getting lung cancer.