An air quality alert was issued by the National Weather Service in Mount Holly at 3:45 p.m. on Friday, June 5.

When combined with warmer temperatures, increased ground-level ozone can cause unhealthy conditions outside, particularly for ...

Officials issued an air quality alert for Cape Cod and Southeast Mass. due to high ozone from heat and sun, warning sensitive ...

Air quality alerts have been expanded to cover 16 counties in New Jersey because of high concentrations of ground-level ozone ...

At 10:40 a.m. on Friday, the NWS Raleigh NC reported an air quality alert in effect until Saturday at midnight. The alert is ...

On Friday at 2:29 p.m. an updated air quality alert was reported by the NWS Greenville-Spartanburg SC in effect until 8 p.m.

An air quality alert was reported by the National Weather Service on Thursday at 3:15 p.m. in effect until Friday at 11 p.m.

A second day of poor air quality alerts were issued for southeast Wisconsin June 4. Warning spread up to northeast Wisconsin ...

Air quality alerts have been issued for 12 counties in New Jersey because of high levels of ground-level ozone pollution ...

Millions of residents were urged to avoid using drive-thru lanes and limit certain everyday activities on Thursday.

An air quality alert has been issued in the Greater Cincinnati area for Thursday, June 4.

On Friday at 1:20 a.m. an updated air quality alert was reported by the NWS Greenville-Spartanburg SC in effect until 8 p.m.