Researchers find link to arsenic-contaminated groundwater

A team of researchers has found that the arsenic in groundwater in the region is part of a natural process that predates any recent human interaction, such as intensive pumping.

URL: http://feeds.sciencedaily.com/~r/sciencedaily/earth_climate/recycling_and_waste/~3/QasXptiUQJ8/130304211526.htm