Reports

Lead Aerosols in the Atmosphere: Increasing Concentrations

See allHide authors and affiliations

Science  07 Aug 1970:
Vol. 169, Issue 3945, pp. 577-580
DOI: 10.1126/science.169.3945.577

Abstract

The concentrations of atmospheric lead around San Diego, California, have been determined and their geographic and seasonal variations are explained. The lead aerosol concentration at San Diego is increasing at a rate of 5 percent per year. The isotopic composition of lead aerosols is similar to that of the lead additives isolated from gasoline, which are the largest contributors to atmospheric lead pollution.