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Mark Brigham presenting poster on mercury trends in Voyageurs National Park. Download the paper at: http://t.co/5d17nmjZDc #mnwrc14
Mark Brigham presenting poster on mercury trends in Voyageurs National Park. Download the paper at: http://t.co/5d17nmjZDc #mnwrc14
Wet deposition of mercury decreased considerably in northern Minnesota from 1998-2012. More info with @USGSMercury http://t.co/zhFXRmsC9c