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September 29, 2023

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2022 Salish Sea toxics monitoring synthesis: A selection of research

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 […]

July 13, 2023

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Salish Sea Model tracks pollution, currents and climate change

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 […]

June 8, 2023

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

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. This modeling approach is useful for considering the possible outcomes triggered by various actions, especially when data are lacking to develop mathematical relationships between the actors. […]

February 14, 2023

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.">

Symposium grapples with long-lasting PCBs

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 […]


June 14, 2022

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

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 […]