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Science 1 April 2005:
Vol. 308. no. 5718, p. 73
DOI: 10.1126/science.1106335
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Brevia

Abundance of Cellular Material and Proteins in the Atmosphere

Ruprecht Jaenicke

Suspended atmospheric particles play a crucial role in any global climate scenario: They can both enforce and suppress radiative forcing. In developing climate modeling further, a deeper understanding of atmospheric aerosol is needed. Because of extreme local and temporal variations, proper incorporation of aerosols into models requires modeling of the aerosol itself. It turns out that cellular material and proteins compose up to 25% of the atmospheric aerosol. Consequently, the source strength of the biogenic aerosol in general must be corrected and should be estimated on the order of other major aerosol sources.

Institut für Physik der Atmosphäre, Universität Mainz, 55099 Mainz, Germany.

E-mail: jaenicke{at}uni-mainz.de

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