Investing in Stormwater is an Investment in Salmon — The Nature Conservancy in Washington



Our salmon are in trouble. Toxic runoff from our roads and highways enter our waterways when it rains in the form of stormwater, harming wildlife and human health. Recently, scientists from Washington State University, U.S. Fish and Wildlife Service, the National Oceanic and Atmospheric Administration and the University of Washington-Tacoma discovered that one chemical in this toxic mix that is present in all types of tires – 6PPD – is particularly harmful to salmon. 

While there is no known replacement for 6PPD, there’s still hope. Green stormwater infrastructure, such as bioswales and rain gardens, are extremely effective at filtering this toxic runoff naturally before it reaches our waterways.This year, the Washington state Legislature has the opportunity to pass funding to build a project under the I-5 Ship Canal Bridge in downtown Seattle, the busiest freeway corridor in the state. 


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