Seattle has been having problems with the chemicals wearing off of tires as they drive. They kill salmon when they enter the water. They are now using biochar as part of a soil mix to stop the chemical from damaging the salmon:
John S
PDX OR
King County Department of Natural Resources and Parks
A new soil mixture —made with sand, coconut fiber, and biochar — filtered stormwater so effectively that every single coho salmon survived in the lab.
That’s 100% survival. For a species that’s been dying in our streams from a toxic tire chemical called 6PPDQ, this is big news. King County scientists are leading the way on a breakthrough that could change how we protect salmon and treat polluted runoff.
Learn more about this breakthrough in our video
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https://youtu.be/RESCG-4SYpw?si=CtUcuYwk_4lia38D
https://www.facebook.com/KingCountyDNRP
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