Air Quality Index (AQI)
The Air Quality Index (AQI) 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.
Whole effluent toxicity testing ensures wastewater does not harm aquatic life.
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.
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.
Columbia River reports & documents
Our Office of Columbia River scientific reports and documents support water supply projects for Eastern Washington
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.
Solid waste & recycling data
View data on solid waste collection and recycling in Washington.
Freshwater fish contaminant monitoring
We analyze freshwater fish for various toxic chemicals.
Monitoring watersheds for salmonids
Does salmon habitat restoration work? Our Intensively Monitored Watersheds program aims to find out.
EIM submit data
Ecology partners, submit your environmental monitoring data to EIM online.
MyEIM is an advanced tool for searching and analyzing EIM data and is best viewed on a large screen.
Modeling the environment
Computer models mathematically represent part of the environment to predict potential changes.
Monitoring for lead in lakes & streams
We monitor temporal changes in the lead levels of rivers and streams in the state.