Children at risk from ozone air pollution--United States, 1991-1993.

A national health objective for the year 2000 is to reduce exposure to air pollutants so that at least 85% of persons reside in counties that meet Environmental Protection Agency (EPA) standards (objective 11.5) (1). Ozone, the principle component of summer smog, is the most pervasive air pollutant in the United States. The risks associated with ozone and other air pollutants are especially increased for children and adults with asthma (2); however, children with no underlying pulmonary diseases also are at risk for adverse health effects associated with these pollutants (3). In addition, because children of racial/ethnic minorities are more likely to reside in areas with higher air pollution levels, they may be exposed to higher levels of ozone (4). This report presents the findings of an analysis by the American Lung Association (ALA) to characterize pediatric populations potentially at risk for adverse health effects from exposure to ozone air pollution in the United States during 1991-1993.