ArticleEnvironmental health and preventive medicine2007
High exposure of Chinese mercury mine workers to elemental mercury vapor and increased methylmercury levels in their hair.
Article in Environmental health and preventive medicine, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 21 citations in OpenAlex.
- Article
- Efficacy of Hair Total Mercury Content as a Biomarker of Methylmercury Exposure to Communities in the Area of Artisanal and Small-Scale Gold Mining in Madre de Dios, Peru.International journal of environmental research and public health · 2021Article
- Holistic health risk assessment in an artisanal mercury mining region in Mexico.Environmental monitoring and assessment · 2021Article
- Useful biomarkers for assessing the adverse health effects of PCBs in allergic children: pediatric molecular epidemiology.Environmental health and preventive medicine · 2015Review
- IL-22 mRNA expression in blood samples as a useful biomarker for assessing the adverse health effects of PCBs on allergic children.International journal of environmental research and public health · 2012Article
Corrections and comments
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Authors and funding
9 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe aim of this study was to determine the level of exposure of mercury (Hg) miners and smelter workers to elemental mercury (Hg(0)) vapor in China, who work in Hg mines without using protective equipment against Hg(0) vapor. In addition, the level of methylmercury (MeHg) intake by the workers was estimated from the MeHg concentration in their hair.
methodsUrinary total mercury (THg) and hair THg and MeHg concentrations were measured in 26 Hg miners and smelter workers (i.e., exposed group), and 48 unexposed people (unexposed group).
resultsThe exposed group showed high geometric mean THg concentrations in urine (258 ng/ml, 226 μg/g creatinine) and hair (20.0 μg/g). The urinary THg concentration of the smelter workers in particular was extremely high (338 μg/g creatinine in urine). The highest urine THg concentration reached 4577 μg/g creatinine. THg concentrations in urine and hair showed a significant correlation in the exposed group (r=0.62), indicating the adhesion of Hg(0) vapor to hair. However, no such significant correlation was found in the unexposed group. Hair MeHg concentration in the exposed group (1.97 μg/g) was about threefold higher than that in the unexposed group (0.60 μg/g).
conclusionsThis study shows that smelter workers in a Chinese Hg mine are exposed to extremely high levels of Hg(0) vapor, and that Hg miners are exposed to higher levels of MeHg than the unexposed subjects. Further study is needed to determine the cause of the higher hair MeHg concentration in the exposed group.
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