Featured Story
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Mystery on the Green River: What killed these young salmon?
Read more: Mystery on the Green River: What killed these young salmon?We know a toxic tire chemical kills adult coho when they return to spawn in polluted urban streams. But is it also killing younger salmon before they even leave home?
Latest posts
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It’s swimming season in King County! Here are our top questions about beach closures and reopenings
Read more: It’s swimming season in King County! Here are our top questions about beach closures and reopeningsKing County is testing 30 swimming beaches this summer to help people stay healthy. Check out these FAQs about beach bacteria and closures!
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¡Es temporada de playa! Aquí están nuestras preguntas principales sobre cierres y reaperturas de playas
Read more: ¡Es temporada de playa! Aquí están nuestras preguntas principales sobre cierres y reaperturas de playasRecibimos muchas preguntas sobre las pruebas de calidad del agua en las playas. ¡A continuación encontrará respuestas a algunas de las preguntas más frecuentes!
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Celebrate American wetlands this month!
Read more: Celebrate American wetlands this month!May is American Wetlands Month! Celebrate by learning more about King County’s wetlands and why they matter for people and birds.
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On the hunt for a hidden source of poop pollution
Read more: On the hunt for a hidden source of poop pollutionLearn how King County field staff, partners in Des Moines, and a trusty robot found and fixed poop pollution in Woodmont Creek.
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Career Cards: Learn what it’s like to be on King County’s environmental science team
Read more: Career Cards: Learn what it’s like to be on King County’s environmental science teamExplore our new Career Cards to learn what environmental scientists in King County’s Science Section do and why it matters.
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A new tool makes it easy to find a Wetland Walk and celebrate World Wetlands Day
Read more: A new tool makes it easy to find a Wetland Walk and celebrate World Wetlands DayTake a Wetland Walk in a King County Park to celebrate and enjoy these special ecosystems on World Wetlands Day (or any time!)
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Video: Cities can grow without harming lakes
Read more: Video: Cities can grow without harming lakesMore people usually mean more phosphorous, and more phosphorous can mean more water quality problems. But from 1998-2022, Lake Washington had a different story to tell.
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Night shift: What mussels can teach us about Puget Sound pollution
Read more: Night shift: What mussels can teach us about Puget Sound pollutionTime and tide wait for no scientist! Ride along for some late-night research and learn what mussels can teach us about Puget Sound pollution.
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In the news
Check out recent news coverage featuring Science Section researchers and their work or click here for a fuller list.
- Is your beach safe? County water testers are checking | KUOW, 7/17/25
- Thank Science for All the Beach Closures | The Stranger, 7/16/25
- Partnering with immigrant and refugee communities on safer fish | Rainier Avenue Radio, 4/25/25
- Scientists discover ‘potential breakthrough’ in protecting salmon from urban killer | Seattle Times, 3/28/2025