Arsenic AND WELL water: The world's worst toxic problems are not confined solely to industrial pursuits.Arsenic leaching into groundwater afflicts some 750,000 people, largely in south Asia.

含砷的井水：世界上最严重的有毒问题不只局限与工业，浸析在地下水的砷影响了主要分布在南亚地区的约75万人。

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Arsenic AND WELL water: The world's worst toxic problems are not confined solely to industrial pursuits. Arsenic leaching into groundwater afflicts some 750,000 people, largely in south Asia.

含砷的井水：世界上最严重的有毒问题不只局限与工业，浸析在地下水的砷影响了主要分布在南亚地区的约75万人。

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The pollution of any Oklahoma waters, including groundwater, has been prohibited by state statute since the early 1900s — well before Koch's waste disposal activity at the refinery.

早在科赫公司精炼厂污水处理活动之前的20世纪初期州法律规定禁止污染州俄克拉荷马水资源，包括地下水。

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If such practices were extended across Asia, groundwater depletions might well be arrested.

ECONOMIST: But the science of yields is unyielding

Another worry is that fracking fluids regurgitated up well-shafts might percolate into groundwater.

ECONOMIST: Shale gas

In early June, the electrical group reported illegally high levels of a carcinogen, trichlorethylene an industrial cleaning agent that is believed to cause kidney and liver damage as well as cancer in the groundwater beneath four of its domestic factories.

ECONOMIST: Toxic waste in Japan