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On October 1, 2015, EPA announced the final 2015 Ozone National Ambient Air Quality Standards.

Ozone is formed when oxides of Nitrogen (NOX) along with Volatile Organic Compounds (VOC) react in the presence of sunlight to create ozone. These conditions can occur both near the ground or in the stratosphere.

Children and elderly people, especially those with respiratory conditions such as asthma and COPD, can react poorly to high concentrations of ground-level ozone, even causing damage to their lungs. Healthy persons who work and/or exercise outdoors during days that are having high ground-level ozone concentrations can incur unhealthy effects from this pollutant.

Ozone is "Good Up High, Bad Nearby"

Call toll-free at 1-866-238-4973 for Ozone forecasts.

  • Ozone Facts
  • Regulatory and Government
  • Data and Reports
  • Permits and Licenses
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