Office of Sustainability
Air Quality


Air Quality in San Antonio

San Antonio is a big city blessed with a warm climate, robust economy and growing population. But, like all big cities, those blessings also present challenges that may threaten our collective well-being. One of those challenges is keeping our air clean – the air that we breathe every day and on which all life depends. Our air doesn’t look particularly dirty, but the truth is we have surpassed the U.S. Environmental Protection Agency’s (EPA) health-based clean air standards. Therefore, it’s important for us all to work together to reduce pollution and clean up our air.

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Breathe Today. SA Tomorrow

The City of San Antonio Air quality public education campaign to encourage reduction of air pollution by businesses and residents.

Read more about Breathe Today. SA Tomorrow.

Nonattainment Information

San Antonio and Bexar County are in exceedance of federally mandated ground-level ozone standards and effectively have until the end of 2020 to attain the standard or face stricter regulations.

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Ozone Action Day Plan

Ozone Action Day Plan establishes guidelines and procedures for reducing emissions of ozone-forming compounds into the atmosphere, both on “Ozone Action Days" as well as throughout the ozone season (March 1-November 30). City Departments, through voluntary compliance with the Ozone Action Day Plan, will modify certain activities on Ozone Action Days.

Read more about the Ozone Action Day Plan.

Ozone and Health

According to the United States Environmental Protection Agency (EPA), ozone in the air can be harmful, especially on hot sunny days when ozone pollution can reach unhealthy levels.

Read more about Ozone and Health.

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No-Idling Policy

No-Idling Policy
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Ozone Public Health Assessment

Ozone Public Health Assessment
View the full report More