A wildfire broke out in Lassen County near the Nevada-California border on the afternoon of Monday, June 30. As of Tuesday ...

Amid summer temperatures and wildfires burning in the Inland Empire, some areas of Southern California will experience ...

Already known for having some of the worst air quality in the U.S., people in Southern California are now also at risk of inhaling smoke. ... See latest AQI numbers in Southern California.

An AQI between 201 and 300 is considered "very unhealthy." In Cathedral City, California, air quality was measured as "hazardous," which is the worst AQI category.

Map of AQI Ways to protect your health when air quality is bad Experts say the particles in wildfire smoke can cause headaches, irritate sinuses, make noses run and eyes water, among milder symptoms.

Elsewhere in California, air quality remains relatively better, with most counties experiencing Good (AQI below 50) or Moderate (AQI 50–100) levels. What People Are Saying ...

Smoke from the Bridge, Line and Airport fires continues to impact air quality across Southern California. By Jonathan Lloyd • Published September 17, 2024 • Updated on September 17, 2024 at 3: ...

The AQI is calculated based upon five criteria pollutants regulated by the Clean Air Act: fine particulate matter known as PM2.5, ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide.

PM2.5 levels due to smoke may reach the Unhealthy AQI category or higher in these areas, with the highest AQI levels expected immediately adjacent to the fire.

California fire map Contributing: Eduardo Cuevas , John Bacon , Michelle Maltais , USA TODAY This article originally appeared on USA TODAY: Los Angeles air quality and smoke maps: See latest AQI ...