中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Assessing the role of ammonia in sulfur transformation and deposition in China

文献类型:期刊论文

作者Quan, Hannong ; Zhang, Xiaoshan
刊名ATMOSPHERIC RESEARCH
出版日期2008-04
卷号88期号:1页码:78-88
关键词aerosol thermodynamics CMAQ sulfur deposition ammonia
英文摘要Inorganic thermodynamic equilibrium model (ISORROPIA) coupled with the Models-3 Community Multi-scale Air Quality modeling system (CMAQ) was used to understand the role of ammonia (NH3) in sulfur dioxide (SO2) transformation and sulfur (S) deposition in China. The simulated S and nitrogen (N) compounds in gas (SO2, NH3) and aerosol (sulfate (SO42-), ammonium (NH4+)) phases and wet deposition were compared against observations at two non-urban sites: Tie Shan Ping (TSP) and Cai Jia Tang (CJT). Observations showed that SO42- was the predominant anion in aerosol and precipitation at the sites, and there were not enough NH3 and alkaline dusts (i.e. minerals oxides and carbonates) to neutralize all acidity. Most of the NH4+ was therefore probably bound to SO42-. The presence of NH3 significantly altered the regional distributions of S compounds in gas and aerosol phases. Model SO2 simulations showed 4 concentration increased by 10-15% while SO2 concentration decreased by 10-60% over polluted regions due to NH3. Furthermore, the presence of NH3 enhanced long-range S transportation for the longer lifetime of sulfate than of SO2 in the atmosphere. S deposition thereby decreased by 10-30% over polluted regions. (c) 2007 Elsevier B.V. All rights reserved.
WOS记录号WOS:000254811500008
源URL[http://ir.rcees.ac.cn/handle/311016/21880]  
专题生态环境研究中心_大气环境科学实验室
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Quan, Hannong,Zhang, Xiaoshan. Assessing the role of ammonia in sulfur transformation and deposition in China[J]. ATMOSPHERIC RESEARCH,2008,88(1):78-88.
APA Quan, Hannong,&Zhang, Xiaoshan.(2008).Assessing the role of ammonia in sulfur transformation and deposition in China.ATMOSPHERIC RESEARCH,88(1),78-88.
MLA Quan, Hannong,et al."Assessing the role of ammonia in sulfur transformation and deposition in China".ATMOSPHERIC RESEARCH 88.1(2008):78-88.

入库方式: OAI收割

来源:生态环境研究中心

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