Carbon pollution from human activities is making ocean water corrosive. This harms marine life. Our new scientific tool helps ...

Submit an observation form to report any violation of the state plastic bag ban you have observed. Plastic bags are a major contaminant in Washington’s recycling facilities, waterways, roadways, and ...

We're working to reduce polluted runoff from streets, forests, and farms. When it rains, water flows across the land, streets, and sidewalks. Pollutants are carried by this water into local streams, ...

Washington’s gardeners have complained for decades about annoying scraps of trash they find in compost and products containing compost, like potting mixes. Plastic film and wrappers, bits of cardboard ...

The rumble of diesel engines idling outside Washington’s schools is being replaced with the sound of silence. That’s because more and more Washington schools are making the switch to zero-emission ...

Beginning in 2027, a new law requires all local jurisdictions in Washington to separate yard waste from all other waste bound for the landfill, so that it can be collected and processed to reduce its ...

Agricultural runoff can pollute lakes, rivers, and marine beaches. It can also contaminate groundwater. Landowners can prevent runoff by using best practices that keep soil and other pollution out of ...

Forestry practices create sediment runoff and warmer water temperatures. We work with other agencies to enforce rules that prevent this type of runoff. We help ensure that the Forest Practices Rules ...

Ecology is considering amendments to Chapter 173-423 WAC, the Clean Vehicles Program rule. This public information session will consist of the following: A presentation Question and answer session ...

Facilities that have an air operating permit must send their emissions data to us or local clean air agencies. We collect emissions data through the Washington Emissions Inventory Reporting System ...