Measurements of ambient hydrocarbons and carbonyls in the Pearl River Delta (PRD), China

被引：85

作者：

Yuan, Bin ^{[1
]}

Chen, Wentai ^{[1
]}

Shao, Min ^{[1
]}

Wang, Ming ^{[1
]}

Lu, Sihua ^{[1
]}

Wang, Bin ^{[1
]}

Liu, Ying ^{[2
]}

Chang, Chih-Chung ^{[3
]}

Wang, Boguang ^{[4
]}

机构：

[1] Peking Univ, Coll Environm Sci & Engn, State Joint Key Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China

[2] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China

[3] Acad Sinica, Res Ctr Environm Changes, Taipei 115, Taiwan

[4] Jinan Univ, Inst Environm Engn, Guangzhou 510632, Guangdong, Peoples R China

来源：

ATMOSPHERIC RESEARCH | 2012年 / 116卷

基金：

中国国家自然科学基金;

关键词：

Hydrocarbons; Carbonyls; Emission ratios; Source identification; Ozone formation; VOLATILE ORGANIC-COMPOUNDS; LIQUEFIED PETROLEUM GAS; NONMETHANE HYDROCARBONS; HONG-KONG; SOURCE APPORTIONMENT; DIURNAL-VARIATIONS; OZONE FORMATION; COMPOUNDS VOCS; RURAL SITES; URBAN;

D O I：

10.1016/j.atmosres.2012.03.006

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Measurements of 47 hydrocarbons and 3 carbonyls were performed at six sites in July 2006 and in October-November 2008 in Pearl River Delta (PRD), China. The distribution of volatile organic compound (VOC) concentrations and compositions at different sites revealed photochemical losses of hydrocarbons and secondary formation of carbonyls. Carbonyls were shown to be an important contributor to OH loss rates and ozone formation potentials. Correlations between VOCs were used to identify the sources of VOC species. Liquefied petroleum gas (LPG) is an important contributor in Guangzhou. Vehicle emissions were the dominant sources of C4-C5 alkenes (except isoprene), whereas industrial and/or solvent use accounted for a significant fraction of aromatic concentrations. Ethylbenzene/m, p-xylene ratios accurately described ozone formation at all sites except a site located upwind of Guangzhou in 2008. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：93 / 104

页数：12

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