Environmental Planning

Air Quality

The ADOT Air Quality Group works to enhance air quality through congestion mitigation, air quality programs and National Environmental Policy Act (NEPA) planning activities to implement provisions required in the Clean Air Act to meet National Ambient Air Quality Standards throughout Arizona.

Statewide Air Quality Nonattainment and Maintenance Areas
Air Quality Updates
  • EPA: Information on Regulatory Actions on Air Quality Standards
  • FHWA: Information on Regulatory Actions on Transportation Conformity
  • EPA Region 9: Information on State of Arizona Implementation Plan Actions
Air Quality: Agency Contacts

From the ADOT Blog

An Arizona freeway with light traffic
Air quality impact studied by ADOT before projects move forward

Sept. 2, 2011

A couple months ago we told you how ADOT works to minimize the noise impact a new freeway has on surrounding neighborhoods. Well, similar efforts also are made when it comes to air quality … Full story ...

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