PM2.5 pollution is spiking in many counties in Utah and is accompanied by the typical summer pollutant of ozone. It makes for a nasty mix of pollution.

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

Tool shows history of heat-related deaths, demographics, land use and air conditioning access across communities.

Today is partly sunny and hot! Highs will be in the upper 80s and low 90s with the heat index pushing to around 100!

Besides temperatures feeling in the high 90s, Chicago and surrounding areas are under an air quality alert until midnight, ...

Millions of Americans across nine states were urged to avoid driving and limit outdoor activities on Wednesday as air quality ...

The 2026 World Cup being hosted by Canada, Mexico and the United States is less than a year away and FIFA’s protocols for ...

Air quality in the Chicago area remains poor for the third straight day in a row, with an air quality alert in effect through Wednesday night, along with extremely muggy conditions and the chance for ...