An AQI value of 100 is considered the threshold for safe air quality. Values at or below 50 are considered good, with 51 to 100 considered “moderate,” or potentially risky for people who are ...

In the springtime in Oklahoma, allergy season can be a primary cause of stuffy noses or difficulty breathing, but allergens like pollen and ragweed aren't counted on the Air Quality Index as those ...

The Air Quality Index (AQI) measures pollution levels and the health risks associated with poor air quality. New Delhi consistently tops the list of most polluted cities globally, largely due to ...