ABSTRACT
The sources of the high indoor levels could be partially determined. Information on the sources, health effects, and human exposure to each chemical must be collected. Environmental Protection Agency studies show that most of the chemicals measured were at higher concentrations often much higher — indoors than outdoors. Environmental Protection Agency's (EPAs) FY 1982-1983 program of monitoring air quality in commercial and public-access buildings is identifying hundreds of volatile organic compounds in schools, office buildings, hospitals, and homes for the elderly. The study, carried out by EPAs Office of Toxic Substances, was nearly identical to the Total Exposure Assessment Methodology Study in its use of personal monitors, outdoor monitors, and drinking water and breath samples. The sources of personal exposures need to be identified and their emission rates quantified. A wide variety of living areas need to be surveyed to better determine the range of exposures nationwide.
