Air Quality

Air quality is improving across much of the Pacific Northwest as cooler temperatures and precipitation settle wildfire smoke from dozens of active fires. Oregon DEQ advisories eased in early September.

A wave of cooler air and scattered showers is bringing relief to smoke-weary Pacific Northwest communities. Portland's AQI has returned to Good, and Oregon DEQ smoke advisories have lifted for most counties — though localized smoke impacts may continue near active fires.

Air quality is improving significantly across Oregon and Washington for the Labor Day weekend as cooler weather pushes wildfire smoke out of the region. Oregon smoke advisories have ended for most counties, with Portland's AQI now rated Good.

The Oregon Department of Environmental Quality has issued smoke air quality advisories for Deschutes, eastern Marion, Baker, and eastern Clackamas counties as wildfires drive fine particulate levels to unhealthy thresholds. Residents with respiratory conditions are urged to limit outdoor exposure.

Oregon DEQ has extended a smoke advisory through Wednesday afternoon for multiple eastern Oregon counties including portions of Marion, Deschutes, Baker, and Clackamas counties, urging residents to limit outdoor exposure.

Oregon DEQ has issued air quality advisories for Deschutes, Baker, and eastern Clackamas counties as wildfire smoke blankets the region. Washington has a statewide burn ban through September 30. Here's what residents need to know to protect their health.

Weeks of wildfire smoke have pushed AQI values above 150 across Chelan, Douglas, and Okanogan counties. Air quality advisories remain in effect as fires continue to burn across the region.

Smoke from Oregon's dozens of active wildfires is causing very unhealthy air quality in Hood River, Prineville, and across Central and Northeast Oregon. Alerts are also in effect for portions of Washington, with conditions expected to shift as winds transport smoke plumes throughout the region.

Air quality advisories are in effect across dozens of Oregon, Washington, and Idaho counties as wildfire smoke from numerous active fires creates dangerous conditions. Leavenworth, WA hit a record AQI of 849+ on August 5, triggering a statewide public health emergency.

Air quality alerts are in effect across counties in Oregon, Washington, and Idaho as wildfire smoke from the region's historic fire season reaches Very Unhealthy levels in some areas. Health officials urge residents to limit outdoor exposure.

Oregon and Washington residents are facing dangerous air quality conditions as wildfire smoke from dozens of active fires blankets the region. Oregon DEQ has issued advisories for multiple counties, and some Washington air monitors are recording AQI values above 500.

Washington has issued a statewide emergency burn ban through September 30 as wildfire smoke from dozens of active PNW fires degrades air quality across the region. Air quality alerts are in effect for Skagit, Whatcom, and Skamania counties, with broad smoke coverage affecting much of the Northwest.

Air quality alerts are active for Skagit, Whatcom, and Skamania counties in Washington, and approximately 33 cities across central and northeastern Washington. Health officials urge sensitive groups to stay indoors and monitor fire.airnow.gov.

Air quality advisories cover multiple Oregon and Washington counties as wildfire smoke reaches hazardous levels near active fires. Officials urge residents to stay indoors, use air purifiers, and monitor fire.airnow.gov.

Air quality advisories and alerts are in effect across large portions of Oregon and Washington as smoke from dozens of active wildfires creates unhealthy and hazardous conditions for millions of residents.

Oregon DEQ has issued air quality advisories for Crook, Jefferson, Wallowa, Wasco, Union, and Umatilla counties, while Washington saw AQI levels above 849 near Leavenworth. Health officials urge sensitive groups to stay indoors.

Oregon's Department of Environmental Quality and the Southwest Clean Air Agency have issued air quality advisories covering dozens of counties across Oregon and southwest Washington as smoke from multiple active wildfires pushes Portland into some of the worst air quality of any major city in the world.

Smoke from Washington's three largest fires is keeping air quality in the Moderate range across Grant and Adams counties, with Unhealthy for Sensitive Groups conditions forecast for Thursday. Oregon's DEQ has advisories in effect for at least six counties.

Smoke from dozens of active wildfires is degrading air quality across large portions of Oregon and Washington, with advisories in effect for numerous counties and health officials urging sensitive groups to limit outdoor exposure.

Oregon DEQ has issued smoke advisories covering Crook, Hood River, Jefferson, Wasco, Wheeler, and eastern Clackamas counties. Eastern Washington continues to experience AQI readings in the Unhealthy to Hazardous range. Health officials urge sensitive groups to stay indoors.