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Clean Air NJ

What’s New on CleanAirNJ:  Check here to for help in choosing  the most efficient vehicle for your family.

Greater Mercer Transportation Management Association announces New Jersey Walking School Bus app now available to help parents identify groups of children to make walking to school a safe experience.

The Division of Air Quality at the New Jersey Department of Environmental Protection is responsible for monitoring and reducing  smog concentrations in New Jersey. This is accomplished with an integrated system of actions:

  • Monitor existing air quality via a set of air monitors that measure current and long-term air quality parameters and determine whether NJ meets federal air quality standards. Visit

  • Estimate air emissions in the State, identify actions to reduce air pollutants and quantify how these actions will help meet federal air quality standards. Visit

  • Develop and implement strategies to reduce emissions from diesel and gasoline fueled vehicles and equipment.  Visit

  • Regulate and issue permits to facilities which emit air pollutants to ensure that federal air quality standards are met. Visit

  • Conduct compliance and enforcement activities to ensure that facilities are complying with their air permits, and vehicles comply with idling and inspection requirements. Visit