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 ...

PHILADELPHIA (CBS) -- Air Quality Index (AQI) refers to the Environmental Protection Agency's scale regarding the health impact of air quality and pollution in the U.S., regulated under the Clear Air ...

Delhi`s Air Quality Index (AQI) was recorded at a `hazardous` level on Tuesday morning, with visibility severely affected and ...

Delhi’s 24-hour average air quality index (AQI) was 377 at 4 pm on Sunday, when the Central Pollution Control Board (CPCB) ...

The air quality in Delhi has seen a slight improvement; however, still falling under the "very poor" category with the AQI at ...

Nearly 30 monitoring stations across the city are recording readings in the severe range, with some locations crossing the ...

Delhi's air quality plummets to a severe AQI of 438, causing hazardous smog and prompting emergency pollution control ...