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 ...

PHILADELPHIA (WPVI) -- With smoke blowing into the Philadelphia region from the wildfires in Canada, you may have heard a lot about the Air Quality Index or AQI. But what it is, exactly? The Air ...

When air quality is poor, fine particulate matter (PM 2. 5, PM10), nitrogen dioxide, and other contaminants can travel deeper ...

According to data from the Central Pollution Control Board, the Air Quality Index remained in the ‘very poor' category at ...

The Air Quality Index (AQI) recorded at around 8 am was 378, classifying the Capital's air as "very poor," according to data ...

The Commission for Air Quality Management on Saturday reimposed Stage 3 restrictions under the Graded Response Action Plan to ...

Delhi's air quality remains hazardous due to dense smog. Authorities have tightened pollution curbs, including restricting ...

Delhi's air quality plummets to severe levels, with Jahangirpuri recording an alarming AQI of 498 amid thick smog.

At least four NCR cities recorded “severe” air quality index (AQI) readings of over 400. Among these, Noida fared the worst, ...