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October 9, 2015

Highway runoff kills salmon but filters can help

By PHUONG LE
Associated Press

SEATTLE — Toxic runoff that flows from highways into urban streams is killing coho salmon in Puget Sound, but simple filtering methods can help fish survive, a new study finds.

Salmon exposed to untreated highway runoff in controlled experiments became lethargic, lost their orientation and died within hours, according to the study published Thursday in the Journal of Applied Ecology.


 
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