Decline in the concentrations of chlorofluorocarbons (CFC-11, CFC-12 and CFC-113) in an urban area of Beijing, China
文献类型：期刊论文
| 作者 | Qin, Dajun |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2007-12-01 |
| 卷号 | 41期号:38页码:8424-8430 |
| 关键词 | urban air CFCs ozone depletion gases Beijing |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2007.07.005 |
| 英文摘要 | During this study 352 whole air samples were collected in an urban area of Beijing between January 2005 and March 2007. The temporal variation of the concentrations of chlorofluorocarbons (CFCs: CFC-11, CFC-12, and CFC-113) in air in the Beijing urban atmosphere is presented and discussed. The weighted mean monthly values of these concentrations have been compared with the data from the north hemisphere. It has been concluded that, in the observed period of time, the mean enhancement of CFCs was relatively small, with increase of 10-15%, with respect to the global background. Change rate in concentrations of CFCs is -1.39, -1.04, and -0.16 pptv/month for CFC-11, CFC-12, and CFC-113, respectively. The tendency of the CFC concentration of the three compounds toward background values is observed to fall and indicates that limitation of emission of CFCs is taking effect, under the Montreal Protocol. (c) 2007 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000252101300002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68104]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Qin, Dajun |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Dajun. Decline in the concentrations of chlorofluorocarbons (CFC-11, CFC-12 and CFC-113) in an urban area of Beijing, China[J]. ATMOSPHERIC ENVIRONMENT,2007,41(38):8424-8430. |
| APA | Qin, Dajun.(2007).Decline in the concentrations of chlorofluorocarbons (CFC-11, CFC-12 and CFC-113) in an urban area of Beijing, China.ATMOSPHERIC ENVIRONMENT,41(38),8424-8430. |
| MLA | Qin, Dajun."Decline in the concentrations of chlorofluorocarbons (CFC-11, CFC-12 and CFC-113) in an urban area of Beijing, China".ATMOSPHERIC ENVIRONMENT 41.38(2007):8424-8430. |
入库方式： OAI收割
来源：地质与地球物理研究所
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