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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Washington aerospace business earns EPA Region 10 2023 Pollution Prevention Recognition Award

Innovative alternatives to toxic chemicals protect employees, budgets, and the environment.

Cleaning up: Fieldwork continues on Bellingham’s working waterfront

The Central Waterfront site of the Bellingham Bay cleanup is on course for cleanup construction to begin in 2026. This month, we begin a round of fieldwork to fill out the details of the cleanup.

Let's Talk About Hanford’s crawly critters

In our next Let's Talk About Hanford, we'll be exploring the insects of Hanford.

Everett wastewater treatment plant’s water quality permit up for review

We’re inviting the public to comment on the draft water quality permit for the Everett wastewater treatment plant.

Local partners using $3 million to safeguard critical shoreline areas

We are providing $3 million to help our partners safegurard their local shorelines.

Stronger together: The promise of connecting North America’s clean energy leaders

On Nov. 2, Director Watson made a preliminary decision to pursue linking Washington’s cap-and-invest carbon reduction program to similar programs in California and the Canadian province of Québec.

Meaningful Momentum: CCA Updates for Fall 2023

The cap-and-invest program team has been working hard! Check out what they've been up to this fall.

Cleaning up: Range of cleanup options considered for Lower Duwamish Waterway site

Tell us what you think of the cleanup options for the Boeing Isaacson Thompson site in the Lower Duwamish Waterway

Hold That Smoke: Why We Call Burn Bans

Residential burning is the main source of fine particle air pollution in Washington in winter. Ecology calls burn bans to help protect air quality and the public's health. 

What happens in a landfill, doesn't stay in a landfill

Washington has a powerful tool to combat climate change with a new rule requiring stricter requirements for controlling methane emissions from decomposing organic matter in landfills.