Ozone levels in North Texas show downward trend, but they've never met EPA standards on time.
Ozone levels in North Texas show downward trend, but they've never met EPA standards on time. North Central Texas Council of Governments
Ozone levels in North Texas show downward trend, but they've never met EPA standards on time. North Central Texas Council of Governments

New Texas lawsuit fights EPA paper tiger

December 29, 2015 6:11 PM