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About Us

Research & Data

Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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Washington Air Quality Advisory
The Washington Air Quality Advisory (WAQA) tells you when air quality is healthy or unhealthy.
Effectiveness monitoring for water quality
Our scientists study the effectiveness of projects to protect and improve water quality.
Lake water quality monitoring & protection
Working with partners, we compile data on algae, invasive plants, and some toxic chemicals in lakes.
River and stream monitoring
Our freshwater data helps us to assure clean and abundant water to support human and aquatic life.
Groundwater quality assessment
Our hydrogeologists monitor and assess groundwater quality and quantity in Washington.
Wastewater testing
Whole effluent toxicity testing ensures wastewater does not harm aquatic life.
Marine water & sediment monitoring
We conduct water and sediment long-term monitoring to identify ecosystem change.
Coastal zone mapping & erosion monitoring
We survey Washington's coastlines to monitor coastal erosion and track sediment movement over time.
Monitoring for toxic chemicals
We conduct long-term monitoring to understand levels and trends of toxics in the environment.
Testing for chemicals in consumer products
We test consumer products to make sure manufacturers comply with chemical restrictions.
Models & spreadsheets
Computer models predict changes and spreadsheets calculate. We offer these tools to the public.
Air quality studies
Information about air quality studies we conduct.
State agency greenhouse gas reports
Washington state agencies are tracking, reporting, and reducing their greenhouse gases.
Washington's greenhouse gas inventory
Our state greenhouse gas inventory summarizes the state's emissions by industry sector.
Climate change reports and publications
Our most current information about climate change, observations, and projections.
Washington greenhouse gas limits
We track progress in reducing carbon pollution and work to align state limits with climate science.
Columbia River reports & documents
Our Office of Columbia River scientific reports and documents support water supply projects for Eastern Washington
Tier Two data summary
A summary of chemical storage data reported to the State Emergency Response Commission
EIM — environmental monitoring data
EIM contains environmental monitoring data collected by our scientists and partners.
Toxics Release Inventory
The Toxics Release Inventory (TRI) identifies chemicals used at businesses or facilities.
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