Category: Toxic chemicals

2022 Salish Sea toxics monitoring synthesis: A selection of research

Report cover
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A new report from the Puget Sound Ecosystem Monitoring Program takes a comprehensive look at some of the greatest dangers posed by toxic chemicals in the Salish Sea. The report was produced with support from the UW Puget Sound Institute, and brings together recent findings on PCBs, CECs, PFAS, 6PPD-Q, and other toxics of concern. It represents a compilation of activities from almost 50 groups in both the United States and Canada. Read it to find out how rogue chemicals are affecting the health of the ecosystem. Overview The Puget Sound Ecosystem Monitoring Program […]

Salish Sea Model tracks pollution, currents and climate change

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This article is the latest in a series about computer models and their uses within the Puget Sound ecosystem. Today, we look at the Salish Sea Model, one of several models in the region helping to predict water circulation, water quality and food-web relationships. Read the full series: Where and how the water moves The waters of Puget Sound contain complex chemical mixtures arising from natural and human sources. The waters are blended and pushed around by currents and other physical forces, creating conditions that vary from place to place. […]

Health of killer whales examined through Bayesian network modeling and informed predictions

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As part of a project exploring the technical uncertainties surrounding Puget Sound water quality, we are reviewing how computer models are used to advance our understanding of natural systems. This blog post is part of a series focused on different models and their uses within the Puget Sound ecosystem. The project is jointly sponsored by King County and the Puget Sound Institute. Qualitative network modeling, as shown in the previous post in Our Water Ways, is focused on actions that create either positive or negative results for actors in the model. […]

Symposium grapples with long-lasting PCBs

An aerial image of the lower Duwamish River as it flows into Puget Sound. The river is heavily contaminated with PCBs and other toxic chemicals. Photo courtesy of NOAA.
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Researchers at the Puget Sound Institute hosted a two-day symposium last month to share information about the science and management of PCBs in the environment. The online workshops, held January 24th and 25th, were organized by PSI researchers Andy James, Joel Baker, and Marielle Larson, in coordination with colleagues Will Hobbs (Washington State Department of Ecology) and Katrina Radach (PSP), along with Greg Allen and Doug Austin (US EPA Chesapeake Bay). Despite their ban in the U.S. in 1979, PCBs (polychlorinated biphenyls) remain one of the most pressing and stubborn […]

Event celebrates the anniversary of the Clean Water Act and new funding for Puget Sound

EPA Deputy Administrator Janet McCabe gave a speech about new federal funding for the environment while visiting the Center for Urban Waters in Tacoma.
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It could have been mistaken for a foggy morning along the waterfront, but the occasional coughs and burning eyes among the crowd of 60 or so people gathered here last Wednesday told a different story. Like much of the Northwest, Tacoma was shrouded in a haze of smoke from a spate of forest fires giving it and its neighbor Seattle the dubious distinction of having some of the worst air quality in the world, topping places like Delhi and Beijing. Against this smoky backdrop, a group of policymakers, tribal leaders […]

BPA toxicity debate approaches regulatory decisions at both state and federal levels

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As Washington state authorities get ready to ban the chemical bisphenol A (BPA) from drink cans and customer sales receipts, the U.S. Food and Drug Administration has agreed to take a fresh look at the potential dangers of BPA. Washington Department of Ecology has issued its “Regulatory Determinations to the Legislature,” which specifies that safer chemicals are available and could be banned from a dozen applications where toxic chemicals are widely used — from flame retardants in electronic equipment to stain-resistant compounds in carpets. Coming next are actual regulations to […]