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Transportation Health Impact Assessment Toolkit

This website is archived for historical purposes and is no longer being maintained or updated.

The Healthy Community Design Initiative, also known as the Built Environment and Health Initiative, is no longer a funded program and the information on this website is not being reviewed and updated on a regular basis.


Air Quality Data

For EPA National Ambient Air Quality Standards, see

Indicator National Database Local Resource
Daily emissions for the project region for
Ozone (O3)
Sulfur dioxide (SO2)
Nitrogen dioxide (NO2)
Particulate matter (PM(2.5/10))
Carbon monoxide (CO)
EPA State and County Level Air Quality Data
  • Click on Air Quality Index, under Monitoring

Emission levels for CO, NO2, SO2, PM2.5/10, ozone

CDC’s Environmental Public Health Tracking Network: state- and county-level air quality data concerning

  • Annual average ambient concentrations of PM2.5
  • Days exceeding the EPA regulatory standard for PM2.5
  • Days exceeding the EPA regulatory standard for ozone

Contact the state department of natural resources or the regional air quality facility.

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  • Page last reviewed: October 19, 2011 (archived document)
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