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Mercury Exposure in Children of the Wanshan Mercury Mining Area, Guizhou, China
Buyun Du;  Ping Li;  Xinbin Feng;  Guangle Qiu;  Jun Zhou;  Laurence Maurice
2016
Source PublicationInternational Journal of Environmental Research and Public Health
metadata_24国际
Abstract

To evaluate the mercury (Hg) exposure level of children located in a Hg mining area, total Hg concentrations and speciation were determined in hair and urine samples of children in the Wanshan Hg mining area, Guizhou Province, China. Rice samples consumed by these same children were also collected for total mercury (THg) and methyl-mercury (MeHg) analysis. The geometric mean concentrations of THg and MeHg in the hair samples were 1.4 (range 0.50-6.0) mu g/g and 1.1 (range 0.35-4.2) mu g/g, respectively, while the geometric mean concentration of urine Hg (UHg) was 1.4 (range 0.09-26) mu g/g Creatinine (Cr). The average of the probable daily intake (PDI) of MeHg via rice consumption was 0.052 (0.0033-0.39) mu g/kg/day, which significantly correlated with the hair MeHg concentrations (r = 0.55, p < 0.01), indicating that ingestion of rice is the main pathway of MeHg exposure for children in this area. Furthermore, 18% (26/141) of the PDIs of MeHg exceeded the USEPA Reference Dose (RfD) of 0.10 mu g/kg/day, indicating that children in this area are at a high MeHg exposure level. This paper for the first time evaluates the co-exposure levels of IHg and MeHg of children living in Wanshan mining area, and revealed the difference in exposure patterns between children and adults in this area.

KeywordMercury Exposure Methyl Hg Total Hg Probable Daily Intake (Pdi) Children Mercury Mining Wanshan China
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/7706
Collection环境地球化学国家重点实验室
Affiliation1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China,University of Chinese Academy of Sciences, Beijing 100049, China
2.Institute of Soil Science, Chinese Academy of Sciences, Nanjing
3.Observatoire Midi-Pyrénées, Laboratoire Géosciences Environnement Toulouse, IRD-CNRS-Université Toulouse, 14 avenue Edouard Belin, Toulouse 31400, France
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
Buyun Du;Ping Li;Xinbin Feng;Guangle Qiu;Jun Zhou;Laurence Maurice. Mercury Exposure in Children of the Wanshan Mercury Mining Area, Guizhou, China[J]. International Journal of Environmental Research and Public Health,2016.
APA Buyun Du;Ping Li;Xinbin Feng;Guangle Qiu;Jun Zhou;Laurence Maurice.(2016).Mercury Exposure in Children of the Wanshan Mercury Mining Area, Guizhou, China.International Journal of Environmental Research and Public Health.
MLA Buyun Du;Ping Li;Xinbin Feng;Guangle Qiu;Jun Zhou;Laurence Maurice."Mercury Exposure in Children of the Wanshan Mercury Mining Area, Guizhou, China".International Journal of Environmental Research and Public Health (2016).
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