Air quality

Everyone deserves clean air to breathe and a sustainable future that responds to challenges presented by climate change. To reach these goals, we regulate harmful emissions from vehicles, burning, and industrial activities to help protect air quality and reduce greenhouse gases that increase temperatures around the globe.
Everyone deserves clean air to breathe and a sustainable future that responds to challenges presented by climate change. To reach these goals, we regulate harmful emissions from vehicles, burning, and industrial activities to help protect air quality and reduce greenhouse gases that increase temperatures around the globe.

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Cleaning up: A riverside cleanup just around the bend
We're taking comments on studies of contamination and cleanup alternatives for exterior walls and adjacent soil at the former Anacortes water treatment plant at Mount Vernon.
Around the Sound: Port Gamble nearing finishing line
After years of planning, cleanup, and restoration efforts, we are nearing the final stages of our cleanup work at the Port Gamble Mill property. We invite you to comment on our cleanup plans.
31 years of Hanford cleanup
May 15 marks a special anniversary for our Nuclear Waste Program — 31 years of Hanford cleanup under the Tri-Party Agreement.
$165 million awarded for clean water projects in the northwest region
We're offering financial assistance for 33 high-priority projects.
How woody debris becomes orca food
Spring Chinook and other salmon species begin their life in streams and rivers that provide clean and cool water spawning grounds. This important habitat is found throughout the Columbia River Basin.
Cleaning up Hanford: Much progress, a lot left to do
This is the last week on the job for Nuclear Waste Program Manager Alex Smith. Before Smith heads off to her next adventure, however, she reflected on her last five years heading the program.
Cleaning up: Fieldwork on Bellingham's busy working waterfront
Contamination testing at Bellingham's central waterfront will set the stage for final cleanup plans.
Cleaning up: Bacteria to the rescue? A pilot study may tell us

We are overseeing a study by Boeing at its Boeing Auburn site to see if a new process using bacteria could be effective at cleaning up contaminated groundwater

Investing in communities to turn blighted properties into affordable housing

Ecology is funding projects in six cities to help clean up contaminated properties – and help with the housing crisis.

Cleaning up: Taking it to the streets in Everett

We’re cleaning up a major intersection in Everett where part of a smelter that produced lead and arsenic once stood.