CEE 452/652 Air Pollution Control Fundamentals (James): Air Quality

View various sources of emissions data and reporting provided by the US EPA, including quick links to relevant regulations and policy guidance.

The US EPA's Air Quality Index (AQI) tells you how clean or polluted your outdoor air is every day, along with associated health effects that may be of concern. The AQI translates air quality data into numbers and colors that help people understand when to take action to protect their health.

The US EPA's outdoor air quality monitoring website includes a variety of summary statistics and measurement data are available from this webpage. Find more information about the AirData website and contents here: https://www.epa.gov/outdoor-air-quality-data/air-data-basic-information

Using a simple search on data.gov, you may look for a wide variety of datasets collected by or reported to US federal government agencies.

This site is no longer being updated with more current information. PM 2.5 pollutant densities are estimated on this global map.

The database contains results of ambient (outdoor) air pollution monitoring from almost 1600 cities in 91 countries. Air quality is represented by annual mean concentration of fine particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 microns).

The United Nations Statistical Division (UNSD) develops the Environment Statistics Database that contains data received through the Questionnaire on Environment Statistics. With the improvement of coverage and data quality, the Environment Statistics Database will gradually provide the basis for regular dissemination of environment statistics. UNSD environmental indicators derived from these data are now available.