By Jill Replogle for LAist
Originally published on May 20, 2026
At least seven wildfires burning around Southern California are sending smoke across the region. The South Coast Air Quality Management District has extended a smoke advisory warning of unhealthy air through 4:30 p.m. Wednesday.
What does a smoke advisory mean?
Local health officials send out warnings when the air quality is unhealthy. The advisories encourage people to avoid outdoor activities and take other steps to limit contact with smoky air.
Where are the wildfires?
Wildfires are burning in Ventura, San Diego, Riverside, Santa Barbara and L.A. counties. You can keep tabs on the fires on the CalFire website.
How bad is the air?
Wildfire smoke is generally worse for your health than the kind of “garden variety urban pollution” Angelenos are used to, said Suzanne Paulson, an atmospheric chemist at UCLA. But air quality depends on where you live, and might change from hour to hour. The good news is that low-cost air quality sensors have made it easier to find out just how bad the air is in your neck of the woods. You can check PurpleAir, Clarity, and IQAir for real-time data on pollution levels, often down to the neighborhood level.
How to avoid breathing bad air
Staying indoors in the best way to avoid bad air pollution, Paulson said. You can also try to avoid the worst areas. “So for example, I ride my bike to work. I regularly look at the map and see if the air quality is OK, and sometimes I even change my route,” Paulson said.
