Note: Some users might notice intermittent discrepancies in colors shown on the map of air quality monitors above, and those reported on the Department of Ecology's official page. This is because Ecology believes their method of calculating the air quality category (i.e. “Good”, “Moderate”, Unhealthy” etc) is more protective of public health in Washington. If in doubt as to which better represents public health risk, use the more stringent of the two (i.e. the map showing worse air quality).
Wednesday, July 5, 2017
Residual smoke from fireworks in western WA today
Pollution levels are still dissipating and we expect Good air quality to return later today.
Smoke from any new fires that started in the last day, whether due to fireworks or other reasons, will likely be confined to nearby areas as winds are expected to remain light until about Thursday evening. Expect mostly Good air quality statewide, with a few Moderate periods.