Concentration distributions of anthropogenic halocarbons over a metropolitan area

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题名:	Concentration distributions of anthropogenic halocarbons over a metropolitan area
作者:	Wang,JL;Chang,CJ;Lin,YH
贡献者:	中央大學
关键词:	OZONE DEPLETION;LIFETIME
日期:	1998
上传时间:	2010-06-29 19:47:26 (UTC+8)
出版者:	化學研究所
摘要:	A method coupling trace gas analysis with air sampling was employed to examine relative emission strengths of several regulated halocarbons. A total of 51 air samples were taken in a random manner throughout the Taipei metropolitan area within one hour period. Several background air samples were also collected on the east coast of Taiwan to provide baseline conditions. The concentrations of CFC-11 (CCl3F), CFC-113(CCl2FCClF2), and CCl4 throughout the city were found to be uniform and close to the background levels, suggesting emissions were insignificant. By contrast, the variability in concentrations for CFC-12 (CCl2F2) and CH3CCl3 were large and exhibited area dependence, implying significant usage. (C) 1998 Elsevier Science Ltd. All rights reserved.
關聯:	CHEMOSPHERE
显示于类别:	[化學研究所] 期刊論文

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