5/31/13

Posted: 30 May 2013 
Researchers found 56 chemicals — including cocaine — at trace amounts in 47 of 50 Minnesota lakes, including many in relatively pristine parts of the state. Some are thought to be endocrine disruptors, which can block or act like hormones in people and wildlife. They are used in pharmaceuticals, personal care products and industrial processes, but are largely unregulated.