The above conversion table is based US EPA AQI standard. Do you know of any Air Quality stations in your area? why not participate to the map with your own air quality station?

AQI to Concentration Calculator. DIRECTIONS: Select a pollutant, then enter the AQI value. Click on “Calculate” to see the results.

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 …

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.

The table below defines the Air Quality Index scale as defined by the US-EPA 2016 standard:

Feb 19, 2025 · The U.S. Air Quality Index is EPA's index for reporting air quality. Every day the AQI tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern.

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.

Mar 2, 2024 · Calculate real-time air quality with the Air Quality Index Calculator. Input pollutant data like PM2.5 and receive accurate AQI readings. Ideal for monitoring air quality at home or by location.

Oct 13, 2017 · Get air quality and weather information for the Bay Area. View current and historical air quality and weather information collected from the Air District’s air monitoring network. Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the "Hazardous category."

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.