Sources and outflows of atmospheric mercury at Mt. Changbai, northeastern China | |
Chen Liu; Xuewu Fu; Hui Zhang; Lili Ming; Hao Xu; Leiming Zhang; Xinbin Feng | |
刊名 | Science of The Total Environment |
2019 | |
卷号 | 663页码:275–284 |
关键词 | Speciated Atmospheric Mercury source Apportionment anthropogenic Sources biomass Burning transboundary Pollution |
英文摘要 | Atmospheric gaseous elemental mercury (GEM), particulate bound mercury (PBM), and gaseous oxidized mercury (GOM) were continuously measured at a remote site in northeastern China from July 2013 to July 2014. Mean (±1SD) concentrations of the hourly data of GEM, PBM, and GOM were 1.68 ± 0.47 ng m−3 , 16.6 ± 15.2 pg m−3 , and 5.4 ± 6.4 pg m−3 , respectively. Concentration-weighted trajectory (CWT) analysis suggested that the potential source regions of GEM and GOM observed at this site were northern and eastern China. GEM and GOM CWT values significantly correlated with anthropogenic Hg emissions, suggesting that long-range transport of anthropogenic Hg emissions played an important role in GEM and GOM pollutions in remote areas of northeastern China. On the other hand, long-range transport of anthropogenic PBM emissions from eastern and northeastern China combined with large-scale biomass burning in Northeast Asia likely dominated PBM pollution. Principal component analysis (PCA) results, making use of the combined data sets of speciated atmospheric Hg, trace elements, and meteorological parameters, suggested that coal combustion and non-ferrous metal smelting contributed significantly to all the Hg species at this site, while the other anthropogenic sources in China also had a major impact on GEM. Forward air mass trajectory analysis revealed that outflows of GEM from northeastern China may have a potential impact on GEM pollutions in remote and oceanic areas in Northeast Asia. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.gyig.ac.cn/handle/42920512-1/10583] |
专题 | 地球化学研究所_环境地球化学国家重点实验室 |
作者单位 | 1.Open Research Station of Changbai Mountain Forest Ecosystems, Institute of Applied Ecology, Chinese Academy of Sciences, Yanbian 133613, China 2.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 4.Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, Ontario, Canada |
推荐引用方式 GB/T 7714 | Chen Liu,Xuewu Fu,Hui Zhang,et al. Sources and outflows of atmospheric mercury at Mt. Changbai, northeastern China[J]. Science of The Total Environment,2019,663:275–284. |
APA | Chen Liu.,Xuewu Fu.,Hui Zhang.,Lili Ming.,Hao Xu.,...&Xinbin Feng.(2019).Sources and outflows of atmospheric mercury at Mt. Changbai, northeastern China.Science of The Total Environment,663,275–284. |
MLA | Chen Liu,et al."Sources and outflows of atmospheric mercury at Mt. Changbai, northeastern China".Science of The Total Environment 663(2019):275–284. |
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