Each Air Quality Index category, also known as the level of concern, is attached to a certain range of values: Good (green): 0 to 50 Moderate (yellow): 51 to 100 ...

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

With wildfire smoke in the forecast, track the drop in air quality across dozens of PurpleAir sensors with our live, updating ...

Detroit faces significant air pollution. Planet Detroit's guide details common pollutants and protective measures.

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

Delhi experienced its cleanest air since September 2023, with the AQI reaching the 'good' category due to rain and favorable ...

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 ...

Smoke is drifting south from wildfires in Canada and a group of lawmakers had asked the Canadian ambassador about her ...

From 8.30 am on Monday to 8.30 am on Tuesday, different parts of Delhi recorded varying amounts of rainfall, with 10.2 mm at ...