A regional air quality alert was issued for much of Southern California as harmful levels of fine particle pollution spread ...

"Avoid all physical activity outdoors," the EPA advises at this level. According to the EPA's map, Picture Rocks and Marana ...

Heavy rains, which lashed Kolkata for the past two days, improved air quality by several notches as the pollutants got cleansed in the showers, a senior West Bengal Pollution Control Board (WBPCB) ...

Despite no significant rain being recorded in many parts of the Capital over the past few days, the air quality in Delhi ...

HUNTSVILLE, Ala. — Air quality in and around Huntsville improved early Saturday after spending several hours in the unhealthy ...

“Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of ...

Delhi may see similar rain on Tuesday and Wednesday, with a yellow alert issued for Tuesday. No alert is in place for ...

An air quality alert was issued Thursday by the National Weather Service for the entire Chicago area through Friday night.