How clean is our air: an update. Air quality in the Tennessee Valley

This booklet is based on recent air quality and emissions information collected by federal, state, and local regulatory agencies and the Tennessee Valley Authority. It discusses the sources and effects of the pollutants that have historically been of concern and indicates areas of continuing concern. It also considers (emerging air quality concerns, such as acid rain, hazardous pollutants, inhalable particulates, indoor air pollution, and visibility impairment) which will help to shape the future of the environment.