Scientists offer solutions to arsenic groundwater poisoning in southern Asia

About 60 million people in Bangladesh are exposed to unsafe levels of arsenic in their drinking water, dramatically raising their risk for cancer and other serious diseases. Because most of the contaminated water is near the surface, many Bangladeshis have installed deep wells to tap into groundwater relatively free of arsenic. But now, farmers are using the deep aquifers for irrigation, which could compromise access to clean drinking, according to scientists.

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