Estimation of mercury emission from different sources to atmosphere in Chongqing, China

文献类型： 外文期刊

第一作者： Wang, Dingyong

作者： Wang, Dingyong;He, Lei;Wei, Shiqiang;Feng, Xinbin

作者机构：

关键词： atmospheric emission;emission factors;mercury;Chongqing

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：8.2； 五年影响因子：8.6 ）

ISSN： 0048-9697

年卷期： 2006 年 366 卷 2-3 期

页码：

收录情况： SCI

摘要： This investigation presents a first assessment of the contribution to the regional mercury budget from anthropogenic and natural sources in Chongqing, an important industrial region in southwest China. The emissions of mercury to atmosphere from anthropogenic sources in the region were estimated through indirect approaches, i.e. using commonly acceptable emission factors method, which based on annual process throughputs or consumption for these sources. The natural mercury emissions were estimated from selected natural sources by the dynamic flux chamber technique. The results indicated that the anthropogenic mercury emissions totaled approximately 8.85 tons (t), more than 50% of this total originated in coal combustion and 23.7% of this total emission in the industrial process (include cement production, metal smelting and chemical industry). The natural emissions represented approximately 17% of total emissions (1.78 t yr(-1)). The total mercury emission to atmosphere in Chongqing in 2001 was 10.63 t. (c) 2005 Elsevier B.V. All rights reserved.

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