Mercury and methylmercury in fish and human hair from the Tapajos river basin, Brazil
Mercury and methylmercury in fish and human hair from the Tapajos river basin, Brazil
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DOI：
10.1016/0048-9697(95)04910-x
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发表时间：
1995-12-11
影响因子：
9.8
通讯作者：
Kato, H
中科院分区：
文献类型：
--
作者：
Malm, O;Branches, FJP;Kato, H
由于金矿开采活动，汞以一种滥用的方式被释放到亚马逊。塔帕霍斯河流域是现代亚马逊淘金热中第一个被集中开发的地区。在塔帕霍斯河流域的主要城市和村庄调查了鱼和头发样本作为人类甲基汞污染的最佳指标。上游盆地有典型的鱼类区系，有较大的肉食性鱼类，汞含量较高，达到0.69 μ g的平均值。G（-1）湿wt. 43条鱼。与此同时，居住在同一地区的人的头发中也含有高水平的汞。毛值最高可达151 μ g。G（-1）干旱区，两个村庄的平均值接近25亩。g（-1）干重量。在日本和巴西实验室之间进行了分析实验室间的校准工作，以进行总汞分析。确定了关键鱼类、区域和更多暴露的人类群体。
Mercury is being released in the Amazon in an abusive way due to goldmining activities. The Tapajos river basin was the first to be intensively exploited in the modern Amazon gold rush. Fish and hair samples as the best indicators of human methylmercury contamination were investigated in the main cities and villages along the Tapajos river basin. The upper basin has typical fish fauna with much larger carnivorous fish with higher mercury levels reaching an average value of 0.69 mu g . g(-1) wet wt. in 43 fish. This was accompanied by high levels in hair of the human population living in the same area. The maximum hair value reach 151 mu g . g(-1) dry wt. with two villages presenting an average value close to 25 mu g . g(-1) dry wt. An analytical laboratory intercalibration exercise was performed between Japanese and Brazilian laboratories for total mercury analysis. Critical fish, areas, and more exposed human groups are identified.