While air quality in Southern California is generally better, low wind speeds in northern portions of the state are allowing poor air to linger. Sierra County was worst affected, with a peak Air ...

There are many pollutants of concern in wildfire smoke,” including ozone, carbon monoxide and other toxic gases, says pediatrician Debra Hendrickson.

With 2025 being ushered in by the most devastating natural disaster in U.S. history, and the Trump administration retreating ...

(KOIN) — Portland’s air quality is currently comparable to Los Angeles, despite the ongoing wildfires in Southern California ... Lakeview currently has the worst air quality in the state ...

With the harsher rules in place, California has been able to address issues that the federal rules were not likely to tackle such as the worst air quality in the nation and smog. California has ...