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The local impact of a coal-fired power plant on inorganic mercury and methyl-mercury distribution in rice (Oryza sativa L.)
Xiaohang Xu;  Bo Meng;  Chao Zhang;  Xinbin Feng;  Chunhao Gu;  Jianyang Guo;  Kevin Bishop;  Zhidong Xu;  Sensen;  Zhang;  Guangle Qiu
2017
Source PublicationEnvironmental Pollution
Volume223Pages:11-18
Abstract

Emission from coal-fired power plants is one of the major anthropogenic sources of mercury (Hg) in the environment, because emitted Hg can be quickly deposited nearby the source, attention is paid to the effects of coal-burning facilities on levels of toxic methyl-mercury (MeHg) in biota near such sources. Since rice is an agricultural crop that can bio-accumulate MeHg, the potential effects of a large Hg emitting coal-fired power plant in Hunan Province, China on both inorganic Hg (Hg(II)) and MeHg distributions in rice was investigated. Relatively high MeHg (up to 3.8 mu g kg(-1)) and Hg(II) (up to 22 mu g kg(-1)) concentrations were observed in rice samples collected adjacent to the plant, suggesting a potential impact of Hg emission from the coal fired power plant on the accumulation of Hg in rice in the area. Concentrations of MeHg in rice were positively correlated with soil MeHg, soil S, and gaseous elemental Hg (GEM) in ambient air. Soil MeHg was the most important factor controlling MeHg concentrations in rice. The methylation of Hg in soils may be controlled by factors such as the chemical speciation of inorganic Hg, soil S, and ambient GEM.

KeywordInorganic Mercury Methyl-mercury Rice Soil s Coal-fired Power Plant
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/7768
Collection环境地球化学国家重点实验室
Affiliation1.Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, 99 Lincheng West Rd, Guiyang 550081, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Wyoming, Dept Ecosyst Sci & Management, Laramie, WY 82071 USA
4.Uppsala Univ, Dept Earth Sci, Uppsala, Sweden
5.Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Uppsala, Sweden
6.Cent S Univ, CAS, Sch Geosci & Infophys, Changsha 410000, Hunan, Peoples R China
First Author Affilication中国科学院地球化学研究所
Corresponding Author Affilication中国科学院地球化学研究所
Recommended Citation
GB/T 7714
Xiaohang Xu;Bo Meng;Chao Zhang;Xinbin Feng;Chunhao Gu;Jianyang Guo;Kevin Bishop;Zhidong Xu;Sensen;Zhang;Guangle Qiu. The local impact of a coal-fired power plant on inorganic mercury and methyl-mercury distribution in rice (Oryza sativa L.)[J]. Environmental Pollution,2017,223:11-18.
APA Xiaohang Xu;Bo Meng;Chao Zhang;Xinbin Feng;Chunhao Gu;Jianyang Guo;Kevin Bishop;Zhidong Xu;Sensen;Zhang;Guangle Qiu.(2017).The local impact of a coal-fired power plant on inorganic mercury and methyl-mercury distribution in rice (Oryza sativa L.).Environmental Pollution,223,11-18.
MLA Xiaohang Xu;Bo Meng;Chao Zhang;Xinbin Feng;Chunhao Gu;Jianyang Guo;Kevin Bishop;Zhidong Xu;Sensen;Zhang;Guangle Qiu."The local impact of a coal-fired power plant on inorganic mercury and methyl-mercury distribution in rice (Oryza sativa L.)".Environmental Pollution 223(2017):11-18.
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