OEPA Air Quality Database




The Air Quality System (AQS) is EPA's repository of ambient air quality data. AQS stores data from over 10,000 monitors, 5,000 of which are currently active. State and local agencies collect the data and submit them to AQS on a periodic basis. The AQS database contains measurements of air pollutant concentrations in the 50 United States, plus the District of Columbia, Puerto Rico, and the Virgin Islands. The measurements include both criteria air pollutants and hazardous air pollutants.


Ohio Environmental Protection Agency (OEPA)


Archived Data Management

Interfaces To

(View Context Diagram)

MORPC Air Quality Website