AQI Basics | AirNow.gov
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 values. The higher the AQI value, the greater the level of …
Air Quality Index Scale and Color Legend - aqicn.org
The table below defines the Air Quality Index scale as defined by the US-EPA 2016 standard:
Air Quality Index (AQI) | AirNow.gov
Every 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. Local air quality affects how you live and breathe. Like the weather, it can change from day to day or even hour to hour.
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 smoke, power plants and factories, vehicle exhaust, and other sources), as well as four other widespread air pollutants.
AirNow.gov
Sep 5, 2024 · Use this box for geographic or location based searches. This button allows AirNow to find the Air Quality at your current location. To use this feature you must allow AirNow to access your location in your device settings. Get air quality data where you live.
AirNow Interactive Map - US EPA
“Ozone and PM” refers to data for Ozone plus PM2.5 plus PM10. Each hour, the highest among these 3 pollutants is displayed for each monitor and each contour. Click on a monitor to reveal …
Air Quality | US EPA - U.S. Environmental Protection Agency
Feb 19, 2025 · Learn about air quality and how it affects health. Discover how to check air quality forecasts, learn about what causes poor air quality, and find out how to help make our air cleaner every day.
Air Quality Index Report | US EPA - U.S. Environmental …
Jan 13, 2025 · This report provides Air Quality Index annual summary information, including maximum AQI values and the count of days in each AQI category. Read more about what's in this report. Use the query tool below to get AQI reports for one state, county, or CBSA at a time.
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.
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 and PM10 particle pollution, which is one of the most harmful air pollutants.