Latest / Chrysalis with John Fiege
16. Sean Dixon — Puget Soundkeeper
The tires of your car have a chemical in them, called 6PPD, that slows tire degradation by binding with oxygen and ozone that could break down the rubber. But these same reactions that protect the rubber are also creating a new chemical, called 6PPD-quinone, which scientists just found in 2020 to be highly toxic to aquatic organisms.
6PPD is in essentially every tire made since the 1960s, and aquatic ecosystems around the world, particularly in dense urban areas, are in danger.
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Coho salmon is particularly susceptible to the toxin, and salmon populations in the Seattle…
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