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To support salmon recovery, our research identifies how toxic flame retardants move through and build up in the Snohomish River, making their way into the bodies of juvenile Chinook salmon.

For the past few summers, neighbors along French Creek in Snohomish County have been noticing an unusual orange hue in the stream. Here’s what we found in our investigation.

A pilot project proposed in Port Angeles is designed to test a new approach to removing carbon pollution.

You can tell a lot about a stream by looking at its bugs. When you see a variety of them living in the muck of a streambed, that’s a strong indicator that a stream is healthy.

It’s time to watch for harmful algal blooms! The only way to know for sure if toxins are present is through laboratory testing. Read on to learn more.

A recent report shows success in reducing PCBs in the Spokane River watershed.

Check out the new BEACH Annual Report to see how your beach fared in 2022.

To further understand water quality issues in the Hangman Creek Watershed, we performed a pollutant source assessment in 2018. The results of the study are now available.

We recently installed eight river monitors to help us detect where pollution affecting Puget Sound comes from.

Ecology’s Marine Sediment Monitoring Team tracks the health of the sediments and invertebrates at the bottom of Puget Sound. They've been on the decline for decades – what could be contributing?