As wildfires begin igniting earlier in the year across the Pacific Northwest, air quality agencies and health officials are reminding residents that wildfire smoke poses serious health risks — and that dangerous air quality events can occur far from where a fire is actively burning.

AccuWeather meteorologists warned in their 2026 wildfire forecast that "smoke from major fires could create air quality concerns far beyond the areas where fires start." In past years, smoke from large fires in Oregon, Washington, and Idaho has blanketed communities hundreds of miles downwind for days or even weeks, pushing air quality index values into "unhealthy" and "very unhealthy" categories across urban areas including Portland, Seattle, Spokane, and Boise.

How Wildfire Smoke Harms Health

Wildfire smoke contains fine particulate matter (PM2.5), carbon monoxide, nitrogen oxides, and a range of volatile organic compounds. Exposure can cause or worsen:

  • Respiratory irritation, coughing, and shortness of breath
  • Worsened asthma, COPD, and other chronic lung conditions
  • Eye, nose, and throat irritation
  • Cardiovascular stress in vulnerable individuals
  • Headaches and fatigue even in otherwise healthy adults

Children, elderly adults, pregnant women, and people with pre-existing respiratory or cardiovascular conditions are at highest risk during smoke events.

Monitoring Air Quality

Oregon and Washington residents can monitor current air quality conditions through several free tools:

  • AirNow.gov — The national air quality index tracker, updated hourly with AQI readings from monitoring stations statewide.
  • Oregon DEQ Air Quality Index Map — Available through Central Oregon Fire Information at centraloregonfire.org.
  • Washington Smoke Blog — Published by the Washington Department of Ecology during active smoke events.
  • PurpleAir — Crowd-sourced sensor network providing hyperlocal air quality readings for many communities.

Protecting Yourself During Smoke Events

When AQI readings reach "Unhealthy for Sensitive Groups" (101+) or above, health officials recommend:

  • Staying indoors with windows and doors closed when possible
  • Running air conditioning on recirculate mode rather than drawing in outside air
  • Using air purifiers with HEPA filters in frequently occupied rooms
  • Wearing a properly fitted N95 or KN95 respirator mask when outdoors is unavoidable
  • Avoiding strenuous outdoor activity, especially in the heat of the day

Smoke from early-season fires has already been observed affecting communities in the Columbia Gorge region. With a potentially active summer ahead, health and fire officials urge residents to set up AirNow alerts for their zip codes now and know their household plan for extended smoke events.