News tagged with heavy metal

Ark. fish deaths still a mystery after tests

(AP) -- The mystery of what killed tens of thousands of fish that washed up along the Arkansas River late last year can't be solved, state wildlife officials announced Wednesday, but they do have a theory about what caused ...

dateJan 27, 2011 in Ecology
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Researcher finds life flying high above

For years, scientists have been tracking pollution that travels across the jet stream from Asia and measuring how much of it winds up in Northwest air. Now new work from University of Washington researchers shows it's not ...

dateJan 07, 2013 in Earth Sciences
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How ancient impacts made mining practical

About 1.85 billion years ago, in what would come to be known as Sudbury Canada, a 10 kilometer wide asteroid struck with such energy that it created an impact crater 250 kilometers wide. Today the chief industry of Sudbury ...

dateSep 23, 2014 in Space Exploration
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Toxic spill from zinc mine in Peru

(AP)—Peruvian authorities say wastewater laced with heavy metals from a major zinc mine has spilled into a tributary of the Amazon, contaminating at least six miles of the waterway.

dateSep 03, 2012 in Environment
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Study shows no lead pollution in oilsands region

New research from a world-renowned soil and water expert at the University of Alberta reveals that there's no atmospheric lead pollution in Alberta's oilsands region—a finding that contradicts current scientific ...

dateOct 24, 2014 in Environment
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