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【Earth&Sky】砷与地下水安全
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1990s
Bangladesh
Bangladeshi
People around the world rely on groundwater as a safe drinking source. But, as University of Wisconsin hydrogeologist Jean Bahr notes, groundwater can sometimes contain toxic substances - like arsenic.
Jean Bahr: [---1---] But it wasn't on our list of things we analyzed for regularly outside of those areas.
[---2---]
[---3---] Bahr added that, today, scientists look for broader features to suggest the presence of arsenic.
Jean Bahr: Is there arsenic in the rocks of sediments? And then, are the conditions of the waters, water chemistry conducive to actually dissolving those minerals and releasing the arsenic?
[---4---]
Today we are celebrating The International Year of Planet Earth. Thanks to the National Science Foundation and US Geological Survey. More at YearofPlanetEarth.org ES, a clear voice for science.
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