North Carolina Counties with 8-Hour Ozone Violations 2010-2012
Table 1. Four counties with a 3-year average of the annual 4th high value for each year equaling 0.076 ppm level or higher (violation of the 8-hour standard established in 2008). The first column lists the county; the second lists the average value for that county. On the 2010-2012 Design Value Map, these counties are colored orange.
| County | Average value |
|---|---|
| Forsyth | 0.078 ppm |
| Guilford | 0.076 ppm |
| Mecklenburg | 0.083 ppm |
| Rowan | 0.078 ppm |
Table 2. Twenty-seven monitored counties that are attaining the 0.076 ppm standard that was established in 2008. The first column lists the county; the second lists the average value for that county. On the 2010-2012 Design Value Map, these counties are colored green.
| County | Average Value |
|---|---|
| Alexander | 0.068 ppm |
| Avery | 0.065 ppm |
| Buncombe | 0.068 ppm |
| Caldwell | 0.067 ppm |
| Caswell | 0.073 ppm |
| Chatham | 0.065 ppm |
| Cumberland | 0.072 ppm |
| Davie | 0.073 ppm |
| Durham | 0.072 ppm |
| Edgecombe | 0.071 ppm |
| Franklin | 0.071 ppm |
| Graham | 0.072 ppm |
| Granville | 0.072 ppm |
| Haywood | 0.069 ppm |
| Jackson | 0.070 ppm |
| Johnston | 0.074 ppm |
| Lenoir | 0.069 ppm |
| Lincoln | 0.075 ppm |
| Martin | 0.067 ppm |
| New Hanover | 0.063 ppm |
| Person | 0.074 ppm |
| Pitt | 0.071 ppm |
| Rockingham | 0.073 ppm |
| Swain | 0.062 ppm |
| Union | 0.073 ppm |
| Wake | 0.075 ppm |
| Yancey | 0.071 ppm |
Note:
- Additional counties may be involved in emission reduction strategies
- Nonattainment designations may not follow county boundaries
- Final data validation is not yet complete