Air Quality

Oregon DEQ has extended wildfire smoke air quality advisories through at least August 14 for counties across central and eastern Oregon. The advisory, first issued August 6 and extended multiple times, covers a region where 2.2 million acres are actively burning. Sensitive groups should limit outdoor exposure.

Oregon DEQ air quality advisories now cover nearly the entire state through Wednesday, August 12, with AQI exceeding 300 in parts of eastern Oregon and Washington. Residents urged to stay indoors and limit outdoor activity.

Wildfire smoke has pushed air quality to unhealthy levels across nearly all of Oregon, Washington, and Idaho. Air quality advisories are in effect statewide, with health officials urging residents to limit outdoor activity.

Wildfire smoke from dozens of active fires has blanketed Oregon, Washington, and Idaho with hazardous air quality. DEQ advisories cover 27 Oregon counties; eastern Washington counties are under "Very Unhealthy" alerts. Health officials urge residents to stay indoors and wear N95 masks if outside.

Smoke from dozens of Pacific Northwest wildfires has pushed air quality to hazardous levels across the region, with Portland briefly ranking among the most polluted major cities on Earth and advisories affecting Seattle, Boise, and Spokane.

Wildfire smoke has reached hazardous levels across the Pacific Northwest, with Wenatchee AQI topping 1,500 and Portland ranking among the worst major cities globally. Health advisories are in effect regionwide.

Wildfire smoke from Pacific Northwest fires has pushed Portland's air quality to among the worst of any major city globally this week. Air quality advisories remain in effect across most of Oregon and Washington, with AQI values reaching Hazardous near active fires.

Wildfire smoke from roughly 50 active Northwest fires has pushed Portland's air quality into the top 10 most polluted cities worldwide, with Seattle, Boise, and dozens of smaller communities also under air quality advisories.

Wildfire smoke from dozens of active Pacific Northwest fires is creating hazardous air quality across the region. Wenatchee and Leavenworth recorded off-the-charts AQI readings above 1,500 near active fires, while Spokane hit 210 and alerts stretch from Portland to Salt Lake City.

The Oregon DEQ issued an air quality advisory on August 3 covering the Portland metro area and multiple eastern Oregon counties as smoke from dozens of wildfires moves west of the Cascades. Health officials urge sensitive groups to limit outdoor exposure.

Wildfire smoke from dozens of Pacific Northwest fires has pushed air quality to Unhealthy and Hazardous levels from Spokane to Portland and beyond, with Air Quality Alerts in effect through at least Monday. Health officials urge residents to stay indoors.

Air quality advisories are in effect for over a dozen Oregon counties and much of eastern Washington as wildfire smoke from dozens of active fires blankets the region, with conditions expected to worsen through the weekend.

Air quality advisories span more than a dozen Oregon counties and ten Idaho counties as wildfire smoke from dozens of active fires pushes AQI into the unhealthy and hazardous range across the Pacific Northwest.

Air quality advisories cover more than a dozen Oregon counties, 35 Idaho counties, and parts of Washington as smoke from active wildfires reaches dangerous levels. Oregon DEQ is advising residents in Baker, Jefferson, Umatilla, Wasco, and surrounding counties to stay indoors.

Wildfire smoke continues to blanket large portions of Oregon and Idaho, with "Unhealthy" AQI readings in Prineville, Burns, Cove, and Ontario. Air quality advisories are in effect across dozens of counties.

Heavy smoke from dozens of Pacific Northwest wildfires is producing unhealthy air quality from Oregon to Montana and beyond, with smoke plumes tracked as far as the Mid-Atlantic and Southeast states.

Wildfire smoke from dozens of active Pacific Northwest fires is driving air quality to hazardous levels across central and eastern Oregon, with smoke plumes spreading east through the Dakotas, Minnesota, and into the Ohio Valley.

Wildfire smoke from multiple large fires has pushed air quality to hazardous levels across Central Oregon, with AQI readings above 200 recorded in Bend. An Oregon DEQ advisory covering multiple counties is expected to remain in effect through Monday afternoon.

The Oregon Department of Environmental Quality has extended and expanded a smoke advisory to cover nearly half the state, with Baker, Crook, Grant, Jefferson, Union, Wallowa, and Wheeler counties among those most affected.

Air quality advisories cover ten or more Oregon counties and parts of eastern Washington this weekend as wildfire smoke from dozens of active fires drives AQI into the Very Unhealthy and Hazardous ranges in some communities.