May 2013 Air Quality Index – Ground-Level Ozone

By swebadmin | Jun 3 2013

The Environmental Protection Agency (EPA) uses data from local regulatory ozone monitors operated by the Texas Commission on Environmental Quality (TCEQ) to determine compliance with the federal ground-level ozone standard. The most recent three-year average (2010-2012) of ground-level ozone in San Antonio violated the current federal ozone standard, and this standard is expected to become even more stringent in the near future.

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