What is Ground Level Ozone?
A highly reactive form of oxygen that is unhealthy to breathe and can damage trees and crops. It is formed when nitrogen oxides react with volatile organic compounds in the air during very hot weather.
Ground level ozone can come from a variety of sources. But, the main culprit is the automobile. In the eight-county Charlotte region, nearly 50% of ozone-forming air pollution comes from on-road vehicles.