North Carolina Counties with 8-Hour Ozone Violations 1997-1999
Table 1. The following table shows 22 of 33 counties and 32 of 45 sites with a 3-year average of the annual 4th high value for each year equaling 0.085 ppm level or higher (violation of the 8-hour standard). The first column lists the county; the second lists the average values for that county.
| County | Average value |
|---|---|
| Alexander | .086 ppm |
| Caldwell | .090 ppm |
| Caswell | .094 ppm |
| Chatham | .088 ppm |
| Cumberland | .092 ppm |
| Davie | .098 ppm |
| Duplin | .085 ppm |
| Durham | .088 ppm |
| Edgecombe | .090 ppm |
| Forsyth | .097 ppm |
| Franklin | .093 ppm |
| Granville | .092 ppm |
| Guilford | .092 ppm |
| Haywood | .094 ppm |
| Johnston | .095 ppm |
| Lincoln | .087 ppm |
| Mecklenburg | .104 ppm |
| Northampton | .087 ppm |
| Pitt | .093 ppm |
| Rockingham | .085 ppm |
| Rowan | .099 ppm |
| Wake | .101 ppm |
Table 2. The following table shows 4 counties with less than a 3 consecutive year average but with a 4th high .085 or higher. The first column lists the county; the second lists the average values for that county.
| County | Average Value |
|---|---|
| Lenoir | .090 ppm *** |
| Person | .095 ppm *** |
| Union | .096 ppm * |
| Yancey | .085 ppm ** |
Table 3. The following table shows 7 monitoried counties which are attaining the .085 ppm standard. The first column lists the county; the second lists the average values for that county.
| County | Average Value |
|---|---|
| Avery | .082 ppm *** |
| Buncombe | .083 ppm |
| Camden | .084 ppm |
| Jackson | .083 ppm * |
| Martin | .082 ppm |
| New Hanover | .078 ppm |
| Swain | .074 ppm |
* Based on Calendar year 1999, which is not suitable for attainment determination (not 3 consecutive years)
** Based on Calendar years 1996, 1997, and 1999
***Based on Calendar years 1998 and 1999
Note:
- Additional counties may be involved in emission reduction strategies
- Nonattainment designations may not follow county boundaries