Girl Planting seeds

Widespread groundwater contamination risk from chromium

In a study that appeared online in Environmental Science & Technology, Stanford scientists used a statewide groundwater database and a new means of tracing sources to identify wells containing hexavalent chromium from industry versus those that became contaminated from naturally occurring sources – some of which may also have resulted from human activity.  The research found that naturally occurring chromium affects a larger area, more wells and a larger population throughout California than industrial sources, offering a new perspective on how California's groundwater resources should be managed.  Read more...

 

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