Atmospheric Aerosols: Biogeochemical Sources and Role in Atmospheric Chemistry
- 16 May 1997
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 276 (5315), 1052-1058
- https://doi.org/10.1126/science.276.5315.1052
Abstract
Atmospheric aerosols play important roles in climate and atmospheric chemistry: They scatter sunlight, provide condensation nuclei for cloud droplets, and participate in heterogeneous chemical reactions. Two important aerosol species, sulfate and organic particles, have large natural biogenic sources that depend in a highly complex fashion on environmental and ecological parameters and therefore are prone to influence by global change. Reactions in and on sea-salt aerosol particles may have a strong influence on oxidation processes in the marine boundary layer through the production of halogen radicals, and reactions on mineral aerosols may significantly affect the cycles of nitrogen, sulfur, and atmospheric oxidants.Keywords
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