 In May 2005, a study published in the "American Journal of Industrial Medicine", conducted by the School of Environment and Health at the University of British Columbia, looked at adverse respiratory effects in crew members on a wide variety of entertainment venues ranging from live theatres, concerts, television and film productions to a video arcade.This study determined that cumulative exposure to mineral oil and glycol-based fogs was associated with acute and chronic adverse effects on respiratory health.This study found that short-term exposure to glycol fog was associated with coughing, dry throat, headaches, dizziness, drowsiness, and tiredness.