The U.S. Air Quality Index (AQI) is EPA's tool for communicating about outdoor air quality and health. The AQI includes six color-coded categories, each corresponding to a range of index …

The Air Quality Index, or AQI, is the system used to warn the public when air pollution is dangerous. The AQI tracks ozone (smog) and particle pollution (tiny particles from smoke, …

The table below defines the Air Quality Index scale as defined by the US-EPA 2016 standard: Air quality is acceptable; however, for some pollutants there may be a moderate health concern …

The Air Quality Index (AQI) is used 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. The AQI focuses on …

What is the AQI? The EPA and your State environmental agency measure pollution in the air. Then they use the Air Quality Index, or AQI, to tell the people about the air. An index can be a …

Jun 8, 2023 · Here's a comprehensive guide to the AQI scale, including what the numbers mean and how you can protect yourself from harmful air pollutants during a wildfire.

What it is: The U.S. Air Quality Index, or AQI, is EPA’s tool for communicating daily air quality. It uses color-coded categories and provides statements for each category that tell you about air …

The Air Quality Index (AQI) is a national air standard rating system developed by the U.S. Environmental Protection Agency. The AQI is used statewide to provide the public, on a daily …

Sep 11, 2020 · The Air Quality Index is a number from 0 to 500 that indicates the health effects certain individuals might experience while breathing. The higher the number, the more polluted …

Jun 6, 2023 · An AQI level of 50 or below represents good air quality, while an AQI value of more than 300 represents hazardous air quality. AQI scores are updated regularly at airnow.gov.