NOx reductions alt text document
Arrow showing past & current NOx reductions in comparison to our goal and future reductions using VW settlement funds
https://ecology.wa.gov/20200407-noxreductionsarrow-alt
Dioxin Study Technical Memo
This is a PDF file that summarizes well testing results in the Lower Yakima Valley.
https://ecology.wa.gov/dioxin-study-technical-memo
Eyes Over Puget Sound
We provide documentation of Puget Sound waterways using community submissions and aerial photography.
https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/eyes-over-puget-sound
Jellyfish in Puget Sound
Jellyfish numbers may be increasing in Puget Sound. You can help us monitor them.
https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/jellyfish
Marine algae & plankton
Marine algae blooms are overgrowths of plankton. They can look like a spill in the water.
https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/marine-algae-plankton
River & stream flow monitoring methods
We measure water's width, depth, and speed in rivers and streams to compute streamflow.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/flow-monitoring/river-stream-flow-monitoring-methods
Water quality monitoring methods for rivers & streams
Learn how we measure water quality in rivers and streams, including methods and parameters.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-monitoring/river-stream-monitoring-methods
Watershed Health Monitoring by region
We studied stream habitat across the state since 2009 and report on findings.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports
Watershed health — Lower Columbia update
River and stream habitats in the Lower Columbia Region show some slight downward trends.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/lower-columbia
Watershed health — Coastal Region update
River and stream habitat in the Coastal Region may show some improvements, but changes are slight.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/coastal
Watershed health — Mid-Columbia update
River and stream habitat in the Mid-Columbia Region shows slight improvement.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/mid-columbia
Watershed health — Unlisted Washington update
River and stream habitat in the Unlisted Region shows worsening conditions.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/regional-reports/unlisted