Oxidation of organic films relevant to atmospheric aerosols

被引：83

作者：

Eliason, TL

Gilman, JB

Vaida, V

机构：

[1] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

[2] Univ Colorado, CIRES, Boulder, CO 80309 USA

来源：

ATMOSPHERIC ENVIRONMENT | 2004年 / 38卷 / 09期

基金：

美国国家科学基金会;

关键词：

reaction mechanism; organic aerosol; surface film; atmospheric chemistry; atmospheric oxidants;

D O I：

10.1016/j.atmosenv.2003.11.025

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Recent field measurements have shown that a significant fraction of the mass of atmospheric aerosols is organic. Organic compounds will preferentially partition to the surface of the aerosols and are extremely susceptible to oxidation by (OH)-O-., O-3, halogens, and NO3. In this work, organic films were investigated as proxies for surface alkane and alkene organic compounds. We have studied the chemical mechanisms for processing of an alkane and an alkene by (OH)-O-.. The competition between O-3 and (OH)-O-. for the carbon-carbon double bond in an alkene is also investigated. Atmospheric consequences of the oxidation of hydrocarbon films will be discussed, including the affects on atmospheric chemistry, climate and atmospheric transport. (C) 2003 Elsevier Ltd. All rights reserved.

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页码：1367 / 1378

页数：12

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