Ozone season is coming to a close, and the good news is Tulsa is below recently lowered EPA standards.
The federal agency lowered national ozone standards this week by less than expected, from 75 parts per billion to 70 rather than 65.
"The fact that EPA set it at 70 parts per billion is good news for us with our 68," said Nancy Graham, who oversees INCOG's air quality programs. "We do need to continue to be as vigilant as ever."
Ozone contributes to the formation of smog, which has been linked to a variety of health problems, including heart and lung disease.