| Atmospheric wet and litterfall mercury deposition at urban and rural sites in China |
| Xuewu Fu; Xu Yang; Xiaofang Lang; Jun Zhou; Hui Zhang; Ben Yu; Haiyu Yan ; Che-Jen Lin; Xinbin Feng
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| 2016
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Source Publication | Atmospheric Chemistry and Physics
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Volume | 16Issue:18Pages:11547-11562 |
Abstract | Mercury (Hg) concentrations and deposition fluxes in precipitation and litterfall were measured at multiple sites (six rural sites and an urban site) across a broad geographic area in China. The annual deposition fluxes of Hg in precipitation at rural sites and an urban site were 2.0 to 7.2 and 12.6 +/- 6.5 mu g m(-2) yr(-1), respectively. Wet deposition fluxes of Hg at rural sites showed a clear regional difference with elevated deposition fluxes in the subtropical zone, followed by the temporal zone and arid/semi-arid zone. Precipitation depth is the primary influencing factor causing the variation of wet deposition. Hg fluxes through litterfall ranged from 22.8 to 62.8 mu g m(-2) yr(-1), higher than the wet deposition fluxes by a factor of 3.9 to 8.7 and representing approximately 75% of the total Hg deposition at the forest sites in China. This suggests that uptake of atmospheric Hg by foliage is the dominant pathway to remove atmospheric Hg in forest ecosystems in China. Wet deposition fluxes of Hg at rural sites of China were generally lower compared to those in North America and Europe, possibly due to a combination of lower precipitation depth, lower GOM concentrations in the troposphere and the generally lower cloud base heights at most sites that wash out a smaller amount of GOM and PBM during precipitation events. |
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Subject Area | 环境地球化学
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Indexed By | SCI
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Language | 英语
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Document Type | 期刊论文
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Identifier | http://ir.gyig.ac.cn/handle/352002/6544
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Collection | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 环境地球化学国家重点实验室
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Recommended Citation GB/T 7714 |
Xuewu Fu,Xu Yang,Xiaofang Lang,et al. Atmospheric wet and litterfall mercury deposition at urban and rural sites in China[J]. Atmospheric Chemistry and Physics,2016,16(18):11547-11562.
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APA |
Xuewu Fu.,Xu Yang.,Xiaofang Lang.,Jun Zhou.,Hui Zhang.,...&Xinbin Feng.(2016).Atmospheric wet and litterfall mercury deposition at urban and rural sites in China.Atmospheric Chemistry and Physics,16(18),11547-11562.
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MLA |
Xuewu Fu,et al."Atmospheric wet and litterfall mercury deposition at urban and rural sites in China".Atmospheric Chemistry and Physics 16.18(2016):11547-11562.
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Atmospheric wet and litterfall mercury deposition at urban and.pdf
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