Research & Data

Use this portal to filter and search for all of our scientific information.

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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Publication: Hydrofluorocarbons Adopted Rule Language – Informational Guidebook

This guidebook is supplemental and is intended to provide general information to stakeholders about the Chapter 173-443 WAC Hydrofluorocarbons (HFCs) and Other Fluorinated Greenhouse Gases rule language and how it may affect them.

https://ecology.wa.gov/publication-hydrofluorocarbons-adopted-rule-language-informational-guidebook

Public comments: Public Notice of Draft Permit for Tacoma Central Wastewater Treatment Plant

We invite your comments on the draft NPDES permit for the Tacoma Central Wastewater Treatment Plant- WA0037087.

https://ecology.wa.gov/public-comments-public-notice-of-draft-permit-for-tacoma-central-wastewater-treatment-plant

Online tool: Air quality monitoring network

Map-based tool providing near real-time air quality information to protect health. It's used to determine if air quality meets health-based federal standards.

https://ecology.wa.gov/air-quality-monitoring-network

Online tool: Cleanup and Tank Search

Find information on contamination cleanup sites and underground storage tanks.

https://ecology.wa.gov/online-tool-cleanup-and-tank-search

Air Quality Index (AQI)

The Air Quality Index (AQI) tells you when air quality is healthy or unhealthy.

https://ecology.wa.gov/research-data/monitoring-assessment/air-quality-index

Air quality studies

Information about air quality studies we conduct.

https://ecology.wa.gov/research-data/scientific-reports/air-quality-studies

EIM — environmental monitoring data

EIM contains environmental monitoring data collected by our scientists and partners.

https://ecology.wa.gov/research-data/data-resources/environmental-information-management-database

Geographic Information Systems (GIS)

Our GIS staff maintain spatial datasets and applications, conduct GIS projects, and publish GIS maps.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis

BEACH annual report

See our annual county-by-county report on bacterial levels at saltwater swimming beaches for 2023.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report

Aquatic Species Restoration Plan Research and Studies

The ASRP is a science-based plan to restore and enhance aquatic species habitat in the Chahalis Basin.

https://ecology.wa.gov/research-data/scientific-reports/asrp-research

Columbia River reports & documents

Our Office of Columbia River scientific reports and documents support water supply projects for Eastern Washington

https://ecology.wa.gov/research-data/scientific-reports/columbia-river-reports

Coastal zone mapping & erosion monitoring

We survey Washington's coastlines to monitor coastal erosion and track sediment movement over time.

https://ecology.wa.gov/research-data/monitoring-assessment/coastal-monitoring-assessment

Models & spreadsheets

Computer models predict changes and spreadsheets calculate. We offer these tools to the public.

https://ecology.wa.gov/research-data/data-resources/models-spreadsheets

Testing for chemicals in consumer products

We test consumer products to make sure manufacturers comply with chemical restrictions.

https://ecology.wa.gov/research-data/monitoring-assessment/consumer-products-testing

Solid waste & recycling data

View data on solid waste collection and recycling in Washington.

https://ecology.wa.gov/research-data/data-resources/solid-waste-recycling-data

Groundwater quality assessment

Our hydrogeologists monitor and assess groundwater quality and quantity in Washington.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment

Monitoring for toxic chemicals

We conduct long-term monitoring to understand levels and trends of toxics in the environment.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring

Lake water quality monitoring & protection

Working with partners, we compile data on algae, invasive plants, and some toxic chemicals in lakes.

https://ecology.wa.gov/research-data/monitoring-assessment/lake-water-quality

Toxics Release Inventory

The Toxics Release Inventory (TRI) identifies chemicals used at businesses or facilities.

https://ecology.wa.gov/research-data/data-resources/toxics-release-inventory

River and stream monitoring

Our freshwater data helps us to assure clean and abundant water to support human and aquatic life.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring