In 2004, the U.S. Environmental Protection Agency (EPA) designated nine counties in North Central Texas as nonattainment for the 8-hour ozone in accordance with the National Ambient Air Quality Standards (NAAQS). EPA establishes limits on atmospheric pollutant concentrations through enactment of the NAAQS. Ground-level ozone is monitored and targeted for reductions due to its potential for harmful effects on human health. Four main sources of ozone precursor emissions include On-road Mobile Sources like cars and trucks, Non-road Mobile Sources like bulldozers and backhoes, Point Sources like electric generating utilities and industrial boilers, and Area Sources like solvent use and agriculture.

In order to reduce ozone and come into compliance with NAAQS, the formulation of an air quality plan is required for all nonattainment areas.  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 contribute to a better quality of life for all North Texans.

Follow the links at left to explore various aspects of air quality or view the "Hot Spots" section highlighted below.

Hot Spots

• Recent Presentations
• Transportation and Air Quality Funding Opportunities
• Public Agency Policy for Construction Equipment
• Regional Smoking Vehicle Program (RSVP)
• SmartWay Transport Partnership
• 8-Hour State Implementation Plan
• Texas Emissions Reduction Plan (TERP)