The pollution levels of BTEX and carbonyls under haze and non-haze days in Beijing, China
文献类型：期刊论文
| 作者 | Zhang, Yujie ; Mu, Yujing ; Meng, Fan ; Li, Hong ; Wang, Xuezhong ; Zhang, Weiqi ; Mellouki, Abdelwahid ; Gao, Jian ; Zhang, Xinmin ; Wang, Shulan ; Chai, Fahe |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2014 |
| 卷号 | 490期号:1页码:391-396 |
| 关键词 | Carbonyls BTEX Haze Photochemical reaction Local emission |
| ISSN号 | 0048-9697 |
| 中文摘要 | The North China Plain including Beijing is frequently suffering from serious haze days in recent years. To best recognize the influence of haze days on regional air quality, the pollution levels of deleterious gases of BTEX (benzene, toluene, ethylbenzene, m, p-xylene and o-xylene) and carbonyls (formaldehyde, acetaldehyde and acetone) under haze and non-haze days were contrastively investigated during the period of September 2008-August 2010 in Beijing. In comparison with non-haze days, remarkable enhancement of BTEX and the carbonyls under haze days in winter was found, with enhancement factors of 1.9-5.7 for BTEX and of 1.5-4.2 for the carbonyls. Whereas the enhancement factors for both BTEX (1.0-3.0) and the carbonyls (1.2-1.9) under haze days in summer were relatively small. The ratios of each BTEX to CO under both haze days and non-haze days exhibited a minimal value in the afternoon, whereas maximal values for the ratios of the carbonyls to CO were usually found in the afternoon. The ratios of each BTEX to CO were extremely greater under haze days than those under non-haze days in winter, but no evident difference was found in summer. The ratios of each carbonyl under both haze days and non-haze days in summer were at least a factor of 2 greater than those in winter and only enhancement of the ratios under haze days was found in winter. The remarkably higher ratios of ethylbenzene to m, p-xylene under haze days than non-haze days in both winter and summer revealed high reactivity of photochemical reactions initiated by OH radicals under haze days. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000347293800040 |
| 公开日期 | 2015-03-23 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9266]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Yujie,Mu, Yujing,Meng, Fan,et al. The pollution levels of BTEX and carbonyls under haze and non-haze days in Beijing, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2014,490(1):391-396. |
| APA | Zhang, Yujie.,Mu, Yujing.,Meng, Fan.,Li, Hong.,Wang, Xuezhong.,...&Chai, Fahe.(2014).The pollution levels of BTEX and carbonyls under haze and non-haze days in Beijing, China.SCIENCE OF THE TOTAL ENVIRONMENT,490(1),391-396. |
| MLA | Zhang, Yujie,et al."The pollution levels of BTEX and carbonyls under haze and non-haze days in Beijing, China".SCIENCE OF THE TOTAL ENVIRONMENT 490.1(2014):391-396. |
入库方式： OAI收割
来源：生态环境研究中心
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