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Agencies, tribes and NGOs push monitoring, regulatory timelines and tribal protections into 6PPD policymaking
Summary
Forum presentations showed coordinated monitoring expansion (USGS, Ecology, Trout Unlimited), WSDOT regional retrofit planning, Ecologys Safer Products process, TSCA engagement by tribes, and a Washington bill proposal that would fee 6PPD tires and ban their sale by 2035. Tribal presenters urged coho‑focused testing and expedited federal review for alternatives.
Speakers at the forum outlined how monitoring expansions, regulatory processes and tribal participation are converging as governments consider restrictions on 6PPD and related products.
Monitoring and laboratory capacity: Justin Greer (USGS) summarized improved direct‑inject LC‑MS/MS methods (reporting limits around 2 ng/L), national reconnaissance sampling and new tissue analysis methods for fish. Alex Le Tigner (Trout Unlimited) described a volunteer‑backed deployment of passive samplers at 20 sites in the Lake Washington/Lake Sammamish basins to augment agency sampling and capture more storms. Presenters repeatedly…
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