Air Quality Index (AQI) | AirNow.gov
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.
Air Quality Index - National Weather Service
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.
Live Animated Air Quality Map (AQI, PM2.5...) | IQAir
Discover AirVisual Map, live world air pollution and air quality index (AQI) interactive 2D animated map combining PM2.5 data from public government, air quality stations, our community.
United States Air Quality Index (AQI) : Real-Time Air Pollution
2 days ago · Check real-time air quality data from cities across United States to understand pollution conditions and stay informed about changing environmental health.
Air Quality Index and Real-time Air Quality Data - US EPA
Aug 25, 2025 · What is the AQI? The Air Quality Index (AQI) in the figure above is calculated based on Ozone (O₃) and Particulate Matter (PM2.5 and PM10). The air quality monitors may …
Air Quality Index (AQI) | AirNow.gov
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.
World's Air Pollution: Real-time Air Quality Index
Check out the real-time air pollution map, for more than 80 countries. Can not find your city on the map? The GAIA air quality monitor uses laser particle sensors to measure in real-time PM2.5 …
About Air Quality | Air Quality | CDC
May 14, 2024 · Pay attention to the Air Quality Index (AQI). The AQI tells you when high levels of air pollution are predicted and how air pollution affects your health. Finding the AQI is easy. It's …
AirNow: Air Quality Index (AQI) Monitoring and Forecasts
AirNow reports current and next-day forecasts for AQI conditions for over 400 cities, as well as nationwide and regional real-time ozone and particle pollution air quality maps, updated …
Air Quality Index - American Lung Association
Sep 18, 2024 · 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 …