North Carolina Counties with 8-Hour Ozone Violations 1999-2001

Table 1. The following table shows 21 of 34 counties and 31 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 .087 ppm
Caldwell .087 ppm
Caswell .090 ppm
Cumberland .089 ppm
Davie .096 ppm
Durham .087 ppm
Edgecombe .087 ppm
Forsyth .094 ppm
Franklin .086 ppm
Granville .088 ppm
Guilford .090 ppm
Haywood .087 ppm
Johnston .087 ppm
Lincoln .091 ppm
Mecklenburg .101 ppm
Person .089 ppm
Rockingham .085 ppm
Rowan .100 ppm
Union .087 ppm
Wake .094 ppm
Yancey .088 ppm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2. The following table shows one county with only one year of data (2001) is above the attainment threshold. The first column lists the county; the second lists the average values for that county.
 

County Average Value
Randolph .085 ppm

 

 

 

 

Table 3. The following table shows 12 monitored counties which are attaining the 0.085 ppm standard. The first column lists the county; the second lists the average values for that county.
 

County Average Value
Avery .075 ppm
Buncombe .083 ppm
Camden .081 ppm
Chatham .082 ppm
Duplin .082 ppm
Jackson .083 ppm
Lenoir .082 ppm
Martin .080 ppm
New Hanover .075 ppm
Northampton .082 ppm
Pitt .084 ppm
Swain .073 ppm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

  • Additional counties may be involved in emission reduction strategies
  • Nonattainment designations may not follow county boundaries