| High exposure of Chinese mercury mine workers to elemental mercury vapor and their increased hair methylmercury levels： A preliminary report |
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| 作者姓名： | Mineshi Sakamoto Xinbin FENG Ping LI Guangle QIU Hongmei JIANG Minoru Yoshida Toyoto Iwata Xiaojie LIU Katsuyuki Murata |
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| 作者单位： | [1]National Institute for Minamata Disease, Minamata 867-0008, Japan [2]State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China [3]Faculty of Human Health Science, Hachinohe University, Hachinohe 031-8566, Japan [4]Department of Environmental Health Sciences, Akita University School of Medicine |
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| 摘 要： | Objectives： To assess the exposure to elemental mercury （Hg0） vapor and methylmercury （MeHg） among mercury mine workers in an area of Guizhou Province, China. Methods： Urine total mercury （THg） and hair THg and MeHg were measured in 26 mercury miners and smelters （i.e., exposed group）, and 52 control subjects （unexposed group）. Results： The mine workers showed high geometric mean THg concentrations in urine （258 ng/mL, 226 μg/g creatinine） and hair （20.0 μg/g）. The urine Hg level of smelters, in particular, was extremely high （338 μg/g creatinine in urine）. The highest urine THg reached 4580 μg/g creatinine. THg concentrations in urine and hair showed a significant correlation in the exposed group （r=0.62）, indicating the adhesion of HgO vapor to hair. However, no such significant correlation was found in the control group.
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| 关 键 词： | 水银矿 熔炉 甲基水银 粘附力 |
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