AirNow.gov
AirNow 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.gov
Local air quality can affect our daily lives. Like the weather, it can change from day to day. EPA developed the Air Quality Index, or AQI, to make information available about the health effects of the five most common air pollutants, and how to avoid those effects.
State AQI | AirNow.gov
Reporting Area Daily AQI for Ozone Daily AQI for PM2.5 Daily AQI for PM10; Loading... No data available.
National Maps | AirNow.gov
The list below shows the areas with the highest NowCast AQI for the current hour. The AirNow system automatically generates this list every hour, based on the areas with the highest NowCast AQI for ozone or particle pollution. Because air quality can change during the day, the areas on this list may change throughout the day, too.
System Alerts | AirNow.gov
https://www.airnow.gov/announcement/4806 Fire and Smoke Map Version 4 Now Available 2024-09-05
Recent AQI Trends | AirNow.gov
https://www.airnow.gov/announcement/4806 Fire and Smoke Map Version 4 Now Available 2024-09-05
About AirNow | AirNow.gov
AirNow reports air quality using the official U.S. Air Quality Index (AQI), a color-coded index designed to communicate whether air quality is healthy or unhealthy for you. When you know the AQI in your area, you can take steps to protect your health.
AirNow Fire and Smoke Map
Smoke plumes reflect smoke anywhere in the atmosphere, not necessarily near the ground. As such, they may not be associated with bad air quality.
AQI & Health | AirNow.gov
Local air quality can affect our daily lives. Like the weather, it can change from day to day. EPA developed the Air Quality Index, or AQI, to make information available about the health effects of the five most common air pollutants, and how to avoid those effects.
Using the Air Quality Index - AirNow
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 quality in your area, which groups of people may be affected, and steps you can take to reduce your exposure to air pollution.