nctcog logo
transportation label



Air Quality

Dallas and Fort Worth

Image of the word Hot Topics

Highest Current Ozone Level: Parker County

View Map

About NCTCOG Transportation Air Quality Planning

In 2012, the US Environmental Protection Agency (EPA) designated ten counties (Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, Tarrant and Wise Counties) in North Central Texas as nonattainment for the pollutant ozone in accordance with the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS). These standards are designed to protect human and environmental health, and ground-level ozone is monitored and targeted for reductions due to its potentially harmful effects.


North Central Texas Council of Governments (NCTCOG) works in cooperation with federal, State, and local partners to ensure all air quality requirements are met.  NCTCOG strives to achieve attainment of the ozone NAAQS as early as possible and contributes to a better quality of life for all North Texans.


Development of an air quality plan, known as the State Implementation Plan (SIP), is required for all nonattainment areas in order to demonstrate how ozone will be reduced to levels compliant with the NAAQS.  The SIP for the Dallas-Fort Worth nonattainment area includes programs to get older cars off the road, technologies to clean up vehicles already on the road, and education programs so that citizens can do their part in improving air quality in North Texas.

Useful Links and Information

Our Programs

Funding Opportunities

Policy and Legislation


Ozone and Air Quality Science Info

Ozone and Other Air Pollutants


ANT Logo


Air North Texas

 Air Quality Committees


Our Teams

Management and Operations
Air Quality Management and Operations


Air Quality Technical Planning and Analysis

Transportation Marketing


An image of the word resources

DFW Clean Cities Coalition


Clean Fleet Policy

Transportation Conformity


NCTCOG Transportation Home

5/25/2016  4/5/16 RL/MG

Find Us on Facebook  Follow Us on Twitter  Tubin with the COG Trans  Grammin with CogTrans
 North Central Texas Council of Governments | 616 Six Flags Drive P.O. Box 5888 Arlington, TX 76005-5888
 Main Operator: (817) 640-3300 | Fax: (817) 640-7806