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 pollution results in over 7 million deaths each year. In this episode of Possibly, we look at the most common way to measure air quality, the Air Quality Index, and what it means for you.

Swiss air quality technology company, IQAir, released its 7th annual World Air Quality Report, highlighting trends in air ...

The Air Quality Index (AQI) is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. For more ...

The Air Quality Index in Delhi dropped to 999 over the weekend, making it the most polluted capital city in the world. While the safe limit set by the World Health Organisation is 25, anything ...

In the springtime in Oklahoma, allergy season can be a primary cause of stuffy noses or difficulty breathing, but allergens ...

It comprises two measures: the number of days with an air quality index below a certain threshold and the number of violation points against drinking water systems in each state. Learn more about ...