Personal exposure to airborne particles and metals: Results from the particle team study in Riverside, California
Ozkaynak, H., Xue, J., Spengler, J., Wallace, L., Pellizzari, E. and Jenkins, P.
1996 Journal of Exposure Analysis and Environmental Epidemiology, 6(1): 57-78
Ozkaynak, H., Xue, J., Spengler, J., Wallace, L., Pellizzari, E. and Jenkins, P., (1996), "Personal exposure to airborne particles and metals: Results from the particle team study in Riverside, California", Journal of Exposure Analysis and Environmental Epidemiology, 6(1): 57-78.
Abstract:
The PTEAM Study was the first large-scale probability-based study of personal exposure to particles. Sponsored by the U.S. Environmental Protection Agency (EPA) and the Air Resources Board of California, it was carried out by the Research Triangle Institute (RTI) and the Harvard University School of Public Health (HSPH). HSPH designed and constructed a 4-lpm, battery-operated personal monitor for inhalable particles (PM10) that could be worn comfortably for up to 14 hours by persons from 10 to 70 years old. The monitor was worn for two consecutive 12-hour periods (day and night) during the fall of 1990 by 178 participants representing 139,000 nonsmoking residents of Riverside, California. Nearly identical monitors were employed to collect concurrent indoor and outdoor samples. The monitors were equipped with a different sampling nozzle to collect fine particles (PM2.5). Population-weighted daytime personal PM10 exposures averaged 150 ¡À 9 (SE) g/m3, compared to concurrent indoor and outdoor concentrations of 95 ¡À 6 g/m3 This suggested