太阳成8722(中国)有限公司-GREEN NO.1

标题：Ambient volatile organic compounds and their effect on ozone production in Wuhan, central China作者：X.P. Lyu, N. Chen, H. Guo, W.H. Zhang*, N.Wang, Y.Wang, M. Liu

来源出版物：Science of the Total Environment 卷：541 页：200–209 出版年：2016

摘要：Ambient volatile organic compounds (VOCs) were continuously measured from February 2013 to October 2014 at an urban site in Wuhan. The characteristics and sources of VOCs and their effect on ozone (O3) formation were studied for the first time. The total VOC levels in Wuhan were relatively low, and of all VOCs, ethane (5.2 ± 0.2 ppbv) was the species with the highest levels. Six sources, i.e., vehicular exhausts, coal burning, liquefied petroleum gas (LPG) usage, the petrochemical industry, solvent usage in dry cleaning/degreasing, and solvent usage in coating/paints were identified, and their contributions to the total VOCs were 27.8 ± 0.9%, 21.8 ± 0.8%, 19.8 ± 0.9%, 14.4 ± 0.9%, 8.5 ± 0.5%, and 7.7 ± 0.4%, respectively. Model simulation of a photochemical box model incorporating the Master Chemical Mechanism (PBM-MCM) indicated that the contribution to O3 formation of the above sources was 23.4 ± 1.3%, 22.2 ± 1.2%, 23.1 ± 1.7%, 11.8 ± 0.9%, 5.2 ± 0.4%, and 14.2 ± 1.1%, respectively. LPG and solvent usage in coating/paints were the sources that showed higher contributions to O3 formation, compared to their contributions to VOCs. The relative incremental reactivity (RIR) analysis revealed that the O3 formation in Wuhan was generally VOC-limited, and ethene and toluene were the primary species contributing to O3production, accounting for 34.3% and 31.5% of the total RIR-weighted concentration, respectively. In addition, the contribution of CO to the O3 formation was remarkable. The C4alkanes and alkenes from the LPG usage also significantly contributed to the O3 formation. The results can assist local governments in formulating and implementing control strategies for photochemical pollution.

文献类型：Article

语种：English

作者关键词：VOCs; Source contribution; O3 formation; RIR; PBM-MCM

通讯作者地址：W.H. Zhang; Department of Environmental Sciences, School of Resource and Environmental Sciences, Wuhan University, Wuhan, China

电子邮件地址：00007335@whu.edu.cn

地址：

[X.P. Lyu;H. Guo;N.Wang;Y.Wang;M. Liu]Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong

[Chen, H]Hubei Provincial Environment Monitoring Center, Wuhan, China

[W.H. Zhang]Department of Environmental Sciences, School of Resource and Environmental Sciences, Wuhan University, Wuhan, China

ISSN：0048-9697

eISSN: 1879-1026

影响因子（2014）：4.099

文章链接：http://www.sciencedirect.com/science/article/pii/S0048969715307531