That's why many Coloradans take notice when something, like wildfire smoke or smog, affects our bluebird skies. So, what ...

The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) But many Angelenos aren’t sure if the AQI tells the full story, especially given how ...

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health risks. Michigan residents can check the AQI through various online resources, ...

Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn’t breathe a ...

Delhi’s clean air streak appears to be nearing its end as the Centre’s Air Quality Early Warning System (EWS) forecasts that ...

Delhi’s air quality index hits 200, entering the ‘poor’ category for the first time since June. Experts warn of worsening ...

Delhi is set to face its first wave of 'poor' air quality this season, with pollution levels expected to worsen by midweek.

As fires burn across Los Angeles County, spurring thousands of evacuations, drifting smoke is affecting the L.A. area and beyond. Wildfire smoke can be harmful to health, especially for children, the ...