Scientists have seen adult coho salmon dying within 24 hours of returning to some polluted urban streams in Western Washington. In some cases, 60 to 90 percent of the coho are dying before they can spawn.
What’s killing the fish? It’s a poison soup of brake pad dust, oil, gasoline and other pollutants that are washed by rain or melting snow from yards, sidewalks, parking lots and roads, right into our streams and Puget Sound.
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