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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New budget air filters to hit market

In response to worsening wildfires, EPA held a prize competition encouraging the creation of more affordable air filters. Ecology supported the competition during its first phase. 

Not your grandparents' auto shop

A new training program at Centralia High School aims to inspire students to pursue careers in renewable energies.This pilot program is made possible with grants from the Department of Ecology.

Ecology issues the first Washington cap-and-invest offset credits

We’re starting off the year with big news for Washington’s carbon offset program! Read about how the offset program works and the different types of offset projects.

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.

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. 

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.

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.

How we’re gathering new thermal data at the DTG-Anderson Landfill

The Yakima Health District and Ecology are using thermal imaging to assess the underground fire at the DTG-Anderson Landfill in Yakima. Here's how we took the photos and what the data show us.

Prepárate para la Semana del Humo
Prepárese para #SmokeReadyTogether este año y ayude a prevenir incendios forestales con estos consejos.
It's "Smoke Ready" week
Get #SmokeReady this year and help prevent wildfires with these tips.