Air pollution and family health.

Air pollution is classified according to chemical characteristics of the pollutants and sources: reducing air pollution, photochemical air pollution, point-source emission and indoor air pollution. The primary pollutants are particulates, oxides of sulfur and nitrogen, ozone, hydrocarbons, carbon monoxide and lead. A knowledge of the effects of these on healthy people and impaired patients can provide the physician with specific measures to apply in individual cases.