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学科主题: Meteorology & Atmospheric Sciences
题名: Sources and meteorological factors that control seasonal variation of delta S-34 values in rainwater
作者: Xido, HW ; Xiao, HY ; Long, AM ; Wang, YL ; Liu, CQ
通讯作者: xiaohw@scsio.ac.cn ; xiaohuayun@vip.skleg.cn
关键词: delta S-34 ; Sources ; Concentration-weighted trajectory ; Temperature ; Washout ; Oxidation pathways
刊名: ATMOSPHERIC RESEARCH
发表日期: 2014
卷: 149, 页:154-165
收录类别: sci
部门归属: [Xido, Hong-Wei ; Long, Ai-Min] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Peoples R China ; [Xiao, Hua-Yun ; Liu, Cong-Qiang] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China ; [Wang, Yan-Li] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
项目归属: LTO
资助者: National Natural Science Foundation of China [41203015, 41273027, 41173027, 40721002]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030103, XDA11020202]
摘要: Sulfate concentrations and sulfur isotopic compositions were measured in rainwater in Guiyang city in Southwest China between October 2008 and September 2009 to identify sulfur sources and their impacts on sulfur isotopic composition. The delta S-34 values of 1235 samples collected during this period ranged from - 12.0 to + 9.4 parts per thousand, with a volume-weighted mean of - 2.8 +/- 9.8 parts per thousand, suggesting that rainwater sulfate in Guiyang was mainly derived from SO2 produced during coal combustion. The delta S-34 values of rainwater sulfate increased from 1987 to 2009, with an increment of about + 0.16 parts per thousand per year, reflecting a gradual reduction in S-34-depleted SO2 emitted during coal combustion. Seasonal variations in delta S-34 values were pronounced, with higher values in winter than in summer. Long-distance transport of SO2 from coal burned in northern cities (which was higher than the component from southern cities), and more importantly, the aqueous oxidation of SO2 during transport affected the seasonal variation of rainwater delta S-34 values in Guiyang. Temperature-dependent aqueous oxidation of SO2 suggested that lower rainwater delta S-34 coincides with higher temperature. (C) 2014 Elsevier B.V. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000341468100013
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10501
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Xido, HW; Xiao, HY; Long, AM; Wang, YL; Liu, CQ.Sources and meteorological factors that control seasonal variation of delta S-34 values in rainwater,ATMOSPHERIC RESEARCH,2014,149():154-165
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