Sources and meteorological factors that control seasonal variation of δ34S values in rainwater | |
Hong-Wei Xiao; Hua-Yun Xiao; Ai-Min Long; Yan-Li Wang; Cong-Qiang Liu | |
2014 | |
Source Publication | Atmospheric Research
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Volume | 149Pages:154–165 |
Abstract | 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 δ34S values of 1235 samples collected during this period ranged from − 12.0 to + 9.4‰, with a volume-weighted mean of − 2.8 ± 9.8‰, suggesting that rainwater sulfate in Guiyang was mainly derived from SO2 produced during coal combustion. The δ34S values of rainwater sulfate increased from 1987 to 2009, with an increment of about + 0.16‰ per year, reflecting a gradual reduction in 34S-depleted SO2emitted during coal combustion. Seasonal variations in δ34S 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 δ34S values in Guiyang. Temperature-dependent aqueous oxidation of SO2 suggested that lower rainwater δ34S coincides with higher temperature. |
Keyword | Δ34s Sources Concentration-weighted Trajectory Temperature Washout Oxidation Pathways |
Indexed By | SCI |
Language | 英语 |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/9380 |
Collection | 环境地球化学国家重点实验室 |
Affiliation | 1.State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China 2.State Key Laboratory of Environment Geochemistry, Institute of Geochemistry, Chinese Academy of Science, Guiyang 550002, China 3.Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
Recommended Citation GB/T 7714 | Hong-Wei Xiao; Hua-Yun Xiao; Ai-Min Long; Yan-Li Wang; Cong-Qiang Liu. Sources and meteorological factors that control seasonal variation of δ34S values in rainwater[J]. Atmospheric Research,2014,149:154–165. |
APA | Hong-Wei Xiao; Hua-Yun Xiao; Ai-Min Long; Yan-Li Wang; Cong-Qiang Liu.(2014).Sources and meteorological factors that control seasonal variation of δ34S values in rainwater.Atmospheric Research,149,154–165. |
MLA | Hong-Wei Xiao; Hua-Yun Xiao; Ai-Min Long; Yan-Li Wang; Cong-Qiang Liu."Sources and meteorological factors that control seasonal variation of δ34S values in rainwater".Atmospheric Research 149(2014):154–165. |
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