Data about the daily mean concentration of air pollutants, especially those potentially harmful to human health. Data should be available for all air monitoring stations or air monitoring zones in a country. The Index focusses on key pollutants as defined by the World Health Organisation. See our methodology section for more information.
|Data location|| https://www.epa.gov/outdoor-air-quality-data - US Environmental Protection Agency (EPA) Air Data|
https://www.emisionestoxicaspr.org/ - Interactive portal relating geospatial information to pollutants in air and on water surfaces
|Data licence||No indication to the contrary that the data are in public domain.|
|Last modified||Thu Dec 15 2016 18:01:28 GMT+0000 (UTC)|