What is a ground-level ozone forecast?
[Back to Top] The NC Division of Air Quality issues a next day ground-level ozone forecast everyday from May 1st through September 30th that consists of a color-coded forecast and a corresponding Air Quality Index (AQI) number. The color code and AQI value provided in the forecast equates to the maximum 8-hour ozone concentration that is anticipated for that area. This information is distributed via email, fax, media outlets, and the North Carolina Ozone Forecast Center web site. The dissemination of a ground-level ozone forecast information allows citizens not only to make wise decisions regarding their health and outdoor activity levels, but also to take action to reduce ozone-forming emissions.