GYIG OpenIR  > 环境地球化学国家重点实验室  > 期刊论文
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
2016
Source PublicationAtmospheric Chemistry and Physics
Volume16Issue: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.
Subject Area环境地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6544
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
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.
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.
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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