WHICH U.S. CITIES HAVE THE DIRTIEST AIR? 2024 STATE OF THE AIR REPORT RANKS THEM The United States' Environmental Protection Agency uses the Air Quality Index (AQI) to measure and communicate ...

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 ...

According to the US Environmental Protection ... The EPA measures regional air quality index (AQI) by how hazardous it is to the general public. Discover the AQI in your city by searching below.

Poor air quality poses serious health risks to humans. Industry, energy, and the transportation sector are all major ...

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 ...

Neighboring Pakistan followed with four of the most polluted cities, with China and Kazakhstan having one each. Data from ...

In 2024, 173 out of 392 cities in the region lacked government monitoring stations, while Cambodia had none, it said. Those ...

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 ...

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 ...