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首页> 外文期刊>International Journal of Environmental Research and Public Health >Gold Mining in Ecuador: A Cross-Sectional Assessment of Mercury in Urine and Medical Symptoms in Miners from Portovelo/Zaruma
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Gold Mining in Ecuador: A Cross-Sectional Assessment of Mercury in Urine and Medical Symptoms in Miners from Portovelo/Zaruma

机译：厄瓜多尔的金矿开采：来自Portovelo / Zaruma矿工的尿液中汞含量和医学症状的横断面评估

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摘要

Mercury is a toxic metal and is used in small scale gold mining. In Portovelo, Ecuador, mercury has been an environmental and health problem for decades. The target of this study was to assess the mercury concentration in the urine of miners from Portovelo/Zaruma to establish a prevalence of high values. Eight hundred and sixty-five (865) urine samples were collected and analysed for their mercury content, using cold vapor atom absorption spectroscopy. The prevalence of high mercury values (>25 μg/L) was estimated. Forty-four (44) miners with mercury levels >15 μg/L filled in a questionnaire for characteristics and possible confounders, and were examined for intoxication symptoms to establish the ten points medical score sum. The median urine value was 1.8 μg/L; 78.3% of miners were below 7 μg/L and were not at risk of an intoxication, whereas 5.9% of miners exceeded the limit of 25 μg/L and were probable to experience intoxication symptoms. The medical score sum had a range of 2 to 8 points with a median of 6. The low prevalence of high mercury concentrations shows that the politics and techniques to eliminate the use of mercury are being successfully implemented. Further studies are needed to identify factors enabling this process.
机译：汞是有毒金属，用于小规模金矿开采。数十年来，在厄瓜多尔的波托维洛，汞一直是环境和健康问题。这项研究的目标是评估Portovelo / Zaruma矿工尿液中的汞浓度，以确定其高流行率。收集了八百六十五（865）个尿液样本，并使用冷蒸气原子吸收光谱法分析了它们的汞含量。估计高汞值（> 25μg/ L）的患病率。汞含量> 15μg/ L的四十四（44）名矿工填写了特征和可能的混杂因素调查表，并检查了中毒症状以建立10分的医学评分总和。尿中位数为1.8μg/ L; 78.3％的矿工低于7μg/ L，没有中毒的风险，而5.9％的矿工超过了25μg/ L的限值，可能会出现中毒症状。医学分数总和的范围为2到8分，中位数为6。高汞浓度的低患病率表明，消除汞使用的政治和技术正在成功实施。需要进一步的研究来确定促成这一过程的因素。

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