The article Air Quality Alert Issued In Chester Co.: How You Can ... Orange is the next to worst level of air quality in the DEP's scale. Red indicates unhealthy pollution levels for all individuals.

The index is on a scale of 0 to 500 (0 being clean air and 500 being ... If the air quality is in the very unhealthy or ...

An air quality alert was issued on Wednesday at 4:14 p.m. in effect until Thursday at 6 p.m. The alert is for San Bernardino ...

If the air quality is in the very unhealthy or hazardous range, chances are an emergency alert will be issued by media outlets, weather apps and more. If this is the case, everyone should avoid ...

On Sunday at 4:16 p.m. an air quality alert was issued valid until Tuesday at 10 p.m. The alert is for San Bernardino and ...