Three West Coast tribes, including two from Puget Sound, are petitioning the federal government to prohibit using a tire additive known to kill coho and other Northwest salmon when it breaks down into a chemical compound and washes into streams.
Chinook and steelhead have also been found to be impacted by 6PPDQ, but, oddly, not sockeye or chum salmon.
LINK (via Northwest Sportsman)
