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 ...

Air quality changes consistently. Depending on the different pollutants in the air that come from natural and human activity, some days can be easier to breathe than others. Air quality indexes ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The U.S. Air Quality Index (AQI) is the ...

GRAP Stage 4 is invoked as Delhi's AQI hits 'Severe Plus.' Learn the full list of emergency restrictions, including the ban ...

An air quality alert continues for the entire Chicago area Friday, with poor air quality due to smoke from Canada wildfires expected to stick around all day and even into Saturday, the NBC 5 Storm ...

Amid worsening air quality and a rising pollution trend, the Commission for Air Quality Management’s (CAQM) Sub-Committee ...

But what do those figures actually mean for our lungs? Why does 200 feel unbearable while 500 feels apocalyptic? And as smoke from stubble burning mixes with vehicular and industrial pollution, what ...

There's confusion over how safe air quality is in L.A. as fires continue to burn, spewing wildfire smoke and toxins. We look at air quality readings, what's real and what's not and what people can do.

The Tennessee Department of Environment and Conservation has issued a Code Orange Air Quality Alert for Nashville and surrounding areas. The alert is in effect until midnight, Monday. Counties in the ...

Delhi's air quality has plunged to 'severe plus', posing grave health risks. Experts warn that even healthy individuals can ...

Smoke from Canadian wildfires is once again impacting air quality in the Chicago area, with air quality index readings Thursday morning in the "unhealthy" category for some suburbs, according to ...