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December 15, 2014

Elevated selenium in Blackfoot River

BOISE, Idaho (AP) — An 11-year state and federal study of selenium pollution in a southeastern Idaho watershed where some 700 sheep, cattle and horses have died over the last several decades after grazing in contaminated areas has found the toxin is likely moving through groundwater.

The 36-page study on the Upper Blackfoot River Watershed released earlier this month by the U.S. Geological Survey also found that selenium levels spiked in the river during spring thaw.


 
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