A surface inversion is preventing the normal mixing of air, meaning pollutants will remain trapped at lower altitudes.

Poor air quality has been detected in multiple states surrounding California. The state has been hit with multiple deadly ...

Look for a mostly sunny and breezy day with 10 to 15 mile-per-hour winds out of the northeast this morning, easing to 5 to 10 ...

The South Coast Air Quality Management District issued an air quality alert for the region Friday night, with wildfire smoke ...

On Wednesday at 6:04 a.m. an air quality alert was issued valid until 7 p.m. The alert is for Eastern San Fernando Valley, ...

On Sunday at 6:48 a.m. an air quality alert was issued valid until 10 p.m. The alert is for San Bernardino and Riverside ...

The National Weather Service has issued an air quality alert due to harmful levels of windblown dust and ash as multiple ...

As the wildfires raged and smoke billowed across Los Angeles, officials issued air quality alerts, schools canceled classes ...

The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...