论文部分内容阅读
[目的]研究典型汞污染源暴露人群的发汞含量,为保护相关人群健康提供依据。[方法]收集浙江某电子废弃物回收区人群发样64份,辽宁某煤矿区人群发样145份、尿样145份,上海某医院医护人员发样62份。采用冷原子吸收法测定发总汞和尿汞含量,采用盐酸-甲苯萃取,气相色谱测定甲基汞含量。[结果]电子废弃物回收区人群中酸洗工人头发总汞含量为1.64μg/g,工业区管理人员为0.84μg/g;当地市民头发甲基汞含量为1.25μg/g,酸洗工人仅为0.23μg/g。辽宁铁岭煤矿区人群发汞含量为煤矿工人0.87μg/g、矿区管理人员0.65μg/g、当地居民0.60μg/g,上述3种人群的尿汞含量分别为12.13、2.74、2.14μg/L;上海某医院不同科室的医务人员发汞含量均低于美国环境保护署规定的发汞安全限值1.0μg/g。[结论]台州电子废弃物回收区和铁岭煤矿区工人存在一定的汞污染暴露风险。
[Objective] The research aimed to study the mercury content of the exposed population of typical mercury sources and provide the basis for protecting the health of related population. [Method] A total of 64 samples were collected from an e-waste recycling area in Zhejiang Province, 145 samples from a coal mine in Liaoning Province, 145 urine samples and 62 samples from a hospital in Shanghai. The contents of total mercury and urine mercury were determined by cold atomic absorption spectrometry. The content of methylmercury was determined by hydrochloric acid - toluene extraction and gas chromatography. [Result] The total mercury content of the pickling workers in the electronic waste recycling area was 1.64μg / g and that of the industrial area was 0.84μg / g. The content of methylmercury in the hair of local residents was 1.25μg / g, 0.23 μg / g. The content of mercury in the population of Tieling coal mine in Liaoning province was 0.87 μg / g for coal miners, 0.65 μg / g for mine managers and 0.60 μg / g for local residents. The urinary mercury contents of the three populations were 12.13, 2.74 and 2.14 μg / L, respectively. The mercury content of medical staff in different departments of a hospital in Shanghai was lower than 1.0μg / g of mercury safety limits prescribed by the U.S. Environmental Protection Department. [Conclusion] The workers in Taizhou E-waste recycling area and Tieling coal mine area have some risks of mercury pollution exposure.