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Air Quality System

Description

The Air Quality System (AQS) contains ambient air pollution data collected by EPA, state, local, and tribal air pollution control agencies from over thousands of monitors. AQS also contains meteorological data, descriptive information about each monitoring station (including its geographic location and its operator), and data quality assurance/quality control information.

Questions this resource can help answer

What are the pollutant concentrations at a specific point in time and in a given location?

How do I use this resource?

Reports air quality concentrations and meteorological data at a specific location and point in time

Pro tips

Resource information

Resource owner

Format

Document

Backup URL

Update Frequency

Real-time

Geographic Coverage

United States

Technical specifications

Methodology

State/Local/Tribal reporting of data from individual monitors

Sectors

Other Specifications

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