Water soluble organic compounds formed by oxidation of soot

被引：216
作者：
Decesari, S
Facchini, MC
Matta, E
Mircea, M
Fuzzi, S
Chughtai, AR
Smith, DM
机构：
[1] CNR, Ist Sci Atmosfera & Oceano, Clima, I-40129 Bologna, Italy
[2] Univ Denver, Dept Chem & Biochem, Denver, CO 80208 USA
来源：
ATMOSPHERIC ENVIRONMENT | 2002年 / 36卷 / 11期
基金：
美国国家科学基金会;
关键词：
organic aerosol; soot; CCN; HULIS;
D O I：
10.1016/S1352-2310(02)00141-3
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The water soluble organic compounds (WSOC) in soot samples as a function of the extent of ozone oxidation have been measured by a new methodology which utilises ion exchange chromatography, total carbon analysis and proton nuclear magnetic resonance, These results have been compared with the same analyses of various atmospheric aerosol samples. The WSOC produced from oxidation of soot particles increase rapidly with ozone exposure and consist primarily of aromatic polyacids which are found widely in atmospheric aerosols and which are frequently referred to as macromolecular humic-like substances (HULIS). This work demonstrates that the atmospheric oxidation of soot can produce HULIS in aerosols. The cloud condensation nuclei effectiveness of soot aerosol likely has its origin in these oxidation processes. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1827 / 1832
页数：6
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