Environmental Protection Agency: Border Air Quality Data

This website has air quality data for criteria and hazardous air pollutants, and a significant amount of data from sites in Mexico and along the U.S. border is also available. As per agreement with the Government of Mexico, these data are subject to quality assurance and control measures as the data are processed by Mexico and U.S. border-states for entry into EPA's air quality database, AQS.

Related Entries: Border Data