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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.
Keep track of the most polluted cities in the world with our air quality index (AQI) ranking.
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. It is very easy to set up: It only requires a WIFI access point and a USB compatible power supply.
Get a monitor and contribute air quality data in your city. 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.
The air quality forecast is a prediction of the day’s overall AQI issued by state and local air quality forecasters. Each dot on this map represents a city or reporting area that issues a forecast. Read more about the. Click on a dot to see forecast info for separate pollutants if available.
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) Calculation. The Air Quality Index is based on measurement of particulate matter (PM 2.5 and PM 10 ), Ozone (O 3 ), Nitrogen Dioxide (NO 2 ), Sulfur Dioxide (SO 2) and Carbon Monoxide (CO) emissions.
