New York state health officials have issued an Air Quality Health Advisory for NYC on Thursday due to the forecast presence ...

The classifications are based on a federal measurement system called the Air Quality Index. The Air Quality Index is used nationwide to measure the severity of air pollution and categorize the ...

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health ...

The worst air in the country on the morning of June 14 was in New Castle County because of a wildfire in New Jersey. The air quality index in Wilmington as of 9:45 a.m. was 227, which is "very ...

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 ...