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Bookmark or Share- Air Quality Index (AQI) Basics - AirNowThe 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 values. The higher the AQI value, the greater the level of air pollution and the greater the health concern.
- National Maps | AirNow.govBecause air quality can change during the day, the areas on this list may change throughout the day, too. Note: This list is not used for regulatory purposes, and it does not indicate an area’s status in meeting National Ambient Air Quality Standards.
- AirNow Fire and Smoke MapThis map shows fine particle pollution (PM2.5) from wildfires and other sources. It provides a public resource of information to best prepare and manage wildfire season. Developed in a joint partnership between the EPA and USFS.
- AirNow.govAirNow is your one-stop source for air quality data. Our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views.
- Air Quality Index (AQI) | AirNow.govEvery day the Air Quality Index (AQI) tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern.
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