The red-level air quality index (AQI) category—covering values from 151 to 200—means the air is unhealthy for everyone, not ...

This measure, based on data from the Environmental Protection Agency, evaluates states on the number of days the Air Quality Index in counties was not rated “good.” U.S. News calculated a ...

Air quality is measured by the Air Quality Index, or AQI. The index was created by the Environmental Protection Agency in 1999. When the AQI exceeds 50, air quality alerts, or AQAs, are issued. Above ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...

Stadium in Delhi shows shrouded in the layer of smog as the AQI remains in 'very poor' category, as measured by Central Pollution Control Board (CPCB). Here's what people have to say on rising ...

South Carolina has several counties under air quality alerts due to the wildfires in the northern part of the state and Western North Carolina.