I take clean, safe drinking water for granted. But millions of people around the world use water drawn from the ground that might contain poisonous arsenic.
A new way to map arsenic in water supplies has been used to identify at-risk areas in China. Unlike direct sampling methods, which require a visit to a well, the survey used geological information to map out high-risk areas.
I think it's great to pinpoint at-risk areas, but what will now be done to help the people who rely on this water? [poll id="809"]
This research appears in the 22 August 2013 issue of the journal Science.