Airnow is your one stop source for air quality data. 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 most of the stations on the map are monitoring both pm 2 5 and pm 10 data but there are few exceptions where only pm 10 is available.
The first is a line chart depicting the overall decline in national air quality concentrations for criteria air pollutants from 1990 to 2018.
Air quality map usa today. This map provides near real time information on particulate matter air pollution less than 2 5 microns in diameter pm 2 5. Very easy to set up they only require a wifi access point and a usb power supply. All measurements are based on hourly.
Based on naaqs dropdown selection a synchronized set of charts air quality concentration chart emissions stacked area chart and usa map of monitor locations display. Interactive map of air quality. Our recently redesigned site highlights air quality in your local area first while still providing air quality information at state national and world views.
The gaia air quality monitoring stations are using high tech laser particle sensors to measure in real time pm2 5 pollution which is one of the most harmful air pollutants. Discover the most accurate information on air quality today using our air quality index map to find air quality anywhere in the world. More current map options current by monitors contours loop monitors loop more forecast map options tomorrow s forecast today s forecast by city tomorrow s forecast by city highest aqi locations.
Read the air pollution in usa get real time historical and forecast pm2 5 and weather data with airvisual. For low cost sensor data a correction equation is also applied to mitigate bias in the sensor data. Usa air quality index aqi.
Breezometer created a new and uniform air quality index the breezometer aqi baqi that provides a clear and intuitive way to read and understand real time air quality information. National maps displaying current air quality today s air quality forecast. The fire and smoke map shows fine particulate 2 5 micron pm 2 5 pollution data obtained from air quality monitors and sensors information is shown on both the epa s air quality index scale using the nowcast aqi algorithm and also as hourly pm 2 5 concentration values.
Under typical conditions pm 2 5 is the most damaging form of air pollution likely to be present contributing to heart disease stroke lung cancer respiratory infections and other diseases. Once connected air pollution levels are reported instantaneously and in real time on our maps.