Wildfire Smoke Health Risks Elevated Across Pacific Northwest as 2026 Season Burns Double Normal Acreage

With the 2026 wildfire season already burning more than double the typical acreage for this time of year, public health officials across the Pacific Northwest are urging residents to prepare for periods of poor air quality — and to take smoke exposure seriously, especially for vulnerable populations.

A Record-Setting Season

The National Interagency Fire Center reports that 35,884 fires have burned more than 3.1 million acres across the United States so far in 2026. That pace is running well above historical averages, and public health researchers have documented a corresponding rise in smoke-related health impacts.

According to a 2026 analysis published by Medical Daily, the Pacific states — including Oregon and Washington — are among the regions most affected by elevated fine particulate matter (PM2.5) exposure from wildfire smoke this season. The direct health risk is highest near active wildfire perimeters, but smoke can travel hundreds of miles, affecting communities far from any flame.

Health Effects of Wildfire Smoke

Wildfire smoke is a complex mixture of gases and fine particles. The primary concern is PM2.5 — particles smaller than 2.5 micrometers in diameter — which can penetrate deep into the lungs and even enter the bloodstream. Health effects linked to smoke exposure include:

Aggravated asthma and other respiratory conditions
Increased risk of heart attack and stroke
Worsened chronic obstructive pulmonary disease (COPD)
Preterm birth and low birth weight when pregnant people are exposed
Eye and throat irritation in otherwise healthy individuals

Children, the elderly, pregnant women, and people with pre-existing heart or lung conditions are at the greatest risk during smoke events.

Monitoring Air Quality in the Pacific Northwest

Residents can monitor real-time air quality conditions using the following resources:

AirNow.gov — The EPA’s national air quality monitoring portal, showing current AQI by zip code or map
Oregon DEQ Air Quality — Oregon’s Department of Environmental Quality operates monitoring stations statewide
Washington State Department of Ecology — Maintains an air quality monitoring network for Washington
Spokane Regional Clean Air Agency — Provides real-time AQI data for the Inland Northwest
PurpleAir — Community sensor network that provides hyperlocal air quality readings

What to Do During Smoke Events

When wildfire smoke creates unhealthy air quality conditions in your area:

Stay indoors with windows and doors closed
Use air conditioning if available, set to recirculate indoor air
Run a HEPA air purifier if you have one; avoid running box fans that draw outside air in
Avoid strenuous outdoor activity, especially on Code Orange or worse days
Wear a properly fitted N95 or KN95 respirator if you must go outside — standard cloth or surgical masks do not filter fine particles
Check on elderly neighbors, young children, and people with respiratory conditions

Looking Ahead

With the fire season just ramping up and above-normal temperatures forecast to push through the region in July, air quality events are likely to become more frequent in coming weeks. Oregon’s air quality standards have also come under scrutiny in 2026, with the Oregon Environmental Council and other groups advocating for stronger protections as wildfire smoke seasons grow more severe and prolonged.