Fundão mining tailings dam in Mariana District has collapsed in 2015 and caused the biggest environmental disaster in Brazil. Barra Longa District had its urban area invaded by toxic sludge and its population was extensively exposed to it. Blood and urine samples were collected from 11 residents, focused on investigating the presence of metals at the end of an exploratory health study in 507 inhabitants in 2016. Results have shown increased levels of aluminum, arsenic, cadmium, cooper, lead, manganese and nickel, and zinc defficiency in their body, as well as clinical outcomes.

中文翻译：

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巴西地区巴拉隆加大坝失灵影响地区居民血液和尿液中的金属/准金属含量高：一项初步的人体生物监测研究

Mariana区的Fundão采矿尾矿坝于2015年倒塌，并造成了巴西最大的环境灾难。巴拉隆加区的市区遭到有毒污泥的侵袭，其人口被广泛暴露。在2016年对507名居民进行的探索性健康研究结束时，从11名居民中采集了血液和尿液样本，重点调查了金属的存在。结果表明，铝，砷，镉，铜，铅，锰和镍的含量有所增加，体内锌缺乏症以及临床结果。