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Estimate of global atmospheric organic aerosol from oxidation of biogenic hydrocarbons

Griffin, Robert J. and Cocker, David R., III and Seinfeld, John H. and Dabdub, Donald (1999) Estimate of global atmospheric organic aerosol from oxidation of biogenic hydrocarbons. Geophysical Research Letters, 26 (17). pp. 2721-2724. ISSN 0094-8276. doi:10.1029/1999GL900476.

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The results from a series of outdoor chamber experiments establishing the atmospheric aerosol-forming potential of fourteen terpenoid hydrocarbons have been used to estimate the annual amount of secondary organic aerosol formed globally from compounds emitted by vegetation. Hydroxyl radical, ozone, and nitrate radical oxidation each contribute to aerosol formation in full-photooxidation experiments; because oxidation by nitrate radical under ambient, remote conditions is likely to be negligible, parameters describing aerosol formation from hydroxyl radical and ozone reaction only are developed. Chamber results, temporally and spatially resolved, compound-specific estimates of biogenic hydrocarbon emissions, and hydroxyl radical and ozone fields are combined to lead to an estimate for atmospheric secondary organic aerosol formed annually from biogenic precursors of 18.5 Tg, a number smaller than the previously published estimate of 30–270 Tg [Andreae and Crutzen, 1997].

Item Type:Article
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Cocker, David R., III0000-0002-0586-0769
Seinfeld, John H.0000-0003-1344-4068
Additional Information:Copyright 1999 by the American Geophysical Union. (Received April 1, 1999; revised June 2, 1999; accepted June 4, 1999.) Paper number 1999GL900476. We gratefully acknowledge support by the U.S. Environmental Protection Agency and the National Science Foundation.
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Environmental Protection Agency (EPA)UNSPECIFIED
Issue or Number:17
Record Number:CaltechAUTHORS:20141029-124953551
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51010
Deposited By: George Porter
Deposited On:29 Oct 2014 20:19
Last Modified:10 Nov 2021 19:04

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