Wildfire Smoke Map As Hazardous Air Quality Reported in California, Oregon and Washington

Several areas of California are reporting "hazardous" levels of air quality as multiple states in the U.S. are continuing to be affected by more than 80 large wildfires that have destroyed at least 1.5 million acres of land.

There are currently 85 large wildfires burning in the U.S., after a heatwave and drought in early July caused blazes to break out across the West Coast, according to the National Interagency Fire Center.

More than 22,400 wildland firefighters and incident management teams are currently battling the blazes that have so far burned over 1.5 million acres across 13 states, including Washington, Oregon and California.

Montana and Idaho are the worst affected states in terms of the amount of blazes, with 18 active fires currently in the former and 23 in the latter. But Oregon has the most acres destroyed with 540,286, while California is just behind it with 331,902.

The high number of wildfires that have been burning across the U.S. since early July has caused smoke to travel across the lower 48 states, creating hazy skies and poor air quality for several regions.

A smoke and fire map provided by AirNow on Tuesday shows the air quality levels currently being recorded for areas all across the U.S., with dangerous scores seen in several states including California and Nevada.

The air quality index, which is used by government's across the globe to measure air quality, classifies a score between 151 to 200 as "unhealthy" and between 201 to 300 as "very unhealthy." A score above 300 is considered "hazardous."

If an area is recording an air quality index score that is classified as very unhealthy, then residents are advised to "try to stay indoors," while if it is hazardous then locals are urged to "stay indoors."

Wildfire and smoke map
A smoke and wildfire map provided by AirNow. A majority of the U.S. is seeing good air quality despite 85 wildfire burning. fire.airnow.gov

The worst area shown on the map as of Tuesday, July 27, is Greenville in California, which is currently recording an air quality index score of 445, putting it into the hazardous bracket.

At least three other areas in California are currently reporting hazardous scores on the air quality index, as Taylorsville is showing 445, Westwood is recording 340 and Susanville is at 401.

Multiple other areas of California, which has been one of the worst affected states for wildfires in July, are also recording poor air quality scores as it continues to battle eight blazes, including the Dixie Fire which has so far destroyed 192,849 acres at 21 percent contained.

California and Nevada smoke map
A wildfire and smoke map showing California and Nevada provided by AirNow. fire.airnow.gov

The neighboring state of Nevada is also reporting one area with a very unhealthy air quality index score, as Gerlach is currently recording 211.

Washington has been badly affected by the wildfires over the last month, but is not currently recording any areas with hazardous or very unhealthy air quality, despite reporting multiple areas a week ago in the hazardous bracket.

On Wednesday, July 21, the worst affected area for air quality in the U.S. was Winthrop in Washington, which had an air quality index score of 469. But a majority of regions in the state are now showing scores in the good or unhealthy bracket.

Oregon, which has seen the most acres destroyed mainly due to the Bootleg Fire that has burned 409,611 while being around 50 percent contained, is also reporting air quality scores mainly in the good bracket, which includes any between zero to 50.

A majority of areas in the U.S. are still recording air quality index scores in the good bracket, despite active large fires having burned more than 1.5 million acres causing smoke to spread across the country.

Moon covered with smoke in oregon
The full moon rises over the hills shrouded in smoke from wildfires on July 22, 2021 in Bly, Oregon. Mathieu Lewis-Rolland/Getty Images