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.
2011 comprehensive emissions inventory three-year summary
This is a spreadsheet of the 2011 comprehensive three-year emissions inventory.
https://ecology.wa.gov/2011-comprehensive-emissions-inventory-summary
Monitoring Ozone Air Pollution in Quincy
Information about Monitoring for Ozone Air Pollution in Quincy, 1/30/12
https://ecology.wa.gov/quincyozone
2012 - 2016 Washington Greenhouse Gas Reported Emissions
The Washington Mandatory Greenhouse Gas Reporting Program - Reported Emissions for 2012 - 2016
https://ecology.wa.gov/2012-2016wagreenhousegasreportedemissions
Quincy Air Quality Maps
Maps of Quincy air quality before and after Microsoft Columbia Data Center permit (from 12/13/10 community forum), 12/10
https://ecology.wa.gov/maps-of-quincy-air-quality
Northeast West Plains PFAS March 2024 well sampling results meeting slides
Download the slides for the 6/6/24 NE West Plains drinking water sampling results meeting
https://ecology.wa.gov/west-plains-pfas-sampling-results-slides
2022 Sprague Lake
Sprague Lake Hydrology Analysis Community Kick-Off Meeting November 22, 2022
https://ecology.wa.gov/sprague-lake
Soos Creek SAP Appendix 1: 7-DADMAX thermal record graphs
7-DADMAX thermal record graphs for Soos Creek Watershed Temperature and DO TMDL Study and Analysis Plan, Appendix 1
https://ecology.wa.gov/soos-creek-sap-appendix-1-7-dadmax-thermal-record
20200929 Ecology ozone NAAQS comments
Comments submitted to EPA on the agency's proposed ozone standards.
https://ecology.wa.gov/20200929-ecology-ozone-naaqs-comments
Biosolids facilities list
This is Ecology's official list of biosolids facilities in Washington.
https://ecology.wa.gov/biosolids-facilities-list-a5a06e95e96db8d865eedf1f5db8a461
Kittitas Water Bank Quantity Summary
This document provides an accounting of the water bank
https://ecology.wa.gov/kittitas-water-bank-quantity-summary
Statewide Water Bank Balances
This document provides an accounting of the water bank
https://ecology.wa.gov/statewide-water-bank-balances
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
Effectiveness monitoring for water quality
Our scientists study the effectiveness of projects to protect and improve water quality.
https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring
Lower Snohomish River Tributaries effectiveness monitoring
We're studying bacteria pollution in tributaries to the Lower Snohomish River.
https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring/lower-snohomish-river-tributaries
Measuring bluff erosion in Clallam County
We collected scientific data about bluff-backed Dungeness and Elwha beaches and spits to measure erosion.
https://ecology.wa.gov/research-data/monitoring-assessment/coastal-monitoring-assessment/projects/clallam-county-bluffs
Puget Sound feeder bluffs
Protecting the cliffs that feed Puget Sound beaches with sand and the beaches that depend on them.
https://ecology.wa.gov/research-data/monitoring-assessment/coastal-monitoring-assessment/projects/puget-sound-feeder-bluff
Shoalwater Bay berm monitoring
We monitored the Willapa Bay shoreline to assess how a flood-protection berm changed over time.
https://ecology.wa.gov/research-data/monitoring-assessment/coastal-monitoring-assessment/projects/shoalwater-bay-berm-monitoring
Aladdin Plating
We monitor groundwater for legacy plating chemicals at the former Aladdin Plating Co. site in Tacoma.
https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/aladdin-plating
Watershed Health - Statewide Report
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https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/statewide-report
River and stream flow monitoring
We report the amount of water flowing through Washington’s rivers and streams using graphs and maps.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/flow-monitoring
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