Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily more accurate.

As fires sweep through Los Angeles County, residents face mounting concerns about contaminated air and water supplies ...

LOS ANGELES (AP) — With levels of sooty air pollution far too high across swaths ... winds fanning the flames were blowing toward the south and southwest, said Scott Epstein, air quality ...

The current Air Quality ... recent wildfires in Los Angeles. According to the NWS, the South Coast Air Quality Management District (AQMD) has since reported elevated pollution levels that can ...

The air is still so bad that field crews cannot yet work safely. When they go out, they expect to to find snapped, broken or dried out young trees.

LOS ANGELES (AP) — Some people across Los Angeles have worked for years to increase the number of trees that give respite from heat and air pollution ... Other images show scorched canopies ...

The South Coast Air Quality Management ... of unhealthful fine particulate pollution for several dozen miles, casting a toxic haze over downtown Los Angeles, Compton and Long Beach.

With levels of sooty air pollution far too high ... from Pasadena to the port of Los Angeles because the winds fanning the flames were blowing toward the south and southwest, said Scott Epstein ...

In Los Angeles, People Snap up Air Filters and Wear Masks Against Smoke Pollution LOS ANGELES (AP) — With levels of sooty air pollution far too high across swaths of the Los Angeles area ...

LOS ANGELES (AP) — With levels of sooty air pollution far too high across swaths of the Los Angeles area, Dana Benton is sleeping with a mask on, even with her air purifier running.