Ozone Concentrations Across the U.S.
How does Texas compare to other states in the nation? (Natural Outlook, Spring 2010)
As of 2007, the states with the highest ozone concentrations were California, Connecticut, Georgia, Massachusetts, North Carolina, and Pennsylvania. While Texas has sites measuring above the 1997 8-hour ozone standard, no sites are measuring in the highest range of 0.096 to 0.126 ppm.

Ozone concentrations in parts per million (ppm), 2007 (fourth highest daily maximum 8-hour concentration).



