Ozone

Ozone Levels Lower

Oct 31, 2011

State health officials say fewer emissions from cars and industrial buildings cut down on air pollution this year. The annual ozone season officially ends today. There were 26 days in which ozone exceeded healthy levels. That's well below the 10-year average of 41 days. Division of Air Quality spokesman Tom Mather says recent numbers are lower despite back-to-back hot and dry summers.

UNC Research Points To New Ozone Standard

Mar 18, 2011

On warm days like today, pollution in the air can produce excess ozone near the ground. And air quality officials often issue ozone alerts - warning people with breathing problems to reduce activity or stay indoors.  But new research from UNC indicates the current acceptable ozone levels established by the Environmental Protection Agency might actually be too high.