Lead Isotopic Composition and Trace Metals in Aerosols for Source Apportionment

Abstract:

Transported thousands of miles away from their source, aerosols can be dispersed and deposition throughout the Earth’s surface. Aerosols from natural and industrial sources have different characteristics and health impacts thus it is important to identify their sources. The lead isotopic composition and trace metals in aerosol samples collected in different regions and periods around the world can help us better understand spatial and seasonal variation of aerosol sources. Aerosol samples collected in California, Bermuda, China and the Red Sea have been analyzed. The trace metal and Pb isotopes in these samples provide information regarding the various sources of aerosols to these sites.