10/10/2026
Tires hanging at our docks keep releasing 6PPD and its toxic byproduct, 6PPD-quinone, into the shallow, slow-moving water where young fish feed and shelter, and that chemical can kill coho salmon within hours. Unlike highway runoff, dock tires are a pollution source we can remove ourselves, cheaply and right away, so replacing them with 6PPD-free bumpers is one of the most direct ways to protect Lake Union’s wildlife.
(Artile updated October 10, 2026)Q: Do tires in and over the water pose a serious environmental risk to our lake? Tires used as dock or boat bumpers don’t seem like a concern, since there’s no friction to break them down. Isn’t the bigger problem the tire dust coming off the interstate?A: It.....