North Carolina Counties with 8-Hour Ozone Violations 1998-2000

Table 1. The following table shows 24 of 32 counties and 34 of 43 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 .089 ppm
Buncombe .087 ppm
Caldwell .092 ppm
Caswell .093 ppm
Chatham .086 ppm
Cumberland .093 ppm
Davie .099 ppm
Duplin .087 ppm
Durham .090 ppm
Edgecombe .089 ppm
Forsyth .096 ppm
Franklin .090 ppm
Granville .089 ppm
Guilford .094 ppm
Haywood .094 ppm
Johnston .091 ppm
Lenoir .087 ppm
Lincoln .090 ppm
Mecklenburg .104 ppm
Northampton .085 ppm
Pitt .089 ppm
Person .091 ppm
Rowan .100 ppm
Wake .100 ppm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2. The following table shows one county with only two years of data (1999-2000) is above the attainment threshold. The first column lists the county; the second lists the average values for that county.

County Average Value
Union .090 ppm

 

 

 

 

Table 3. The following table shows 7 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 .080 ppm
Camden .080 ppm
Martin .082 ppm
New Hanover .078 ppm
Rockingham .084 ppm
Swain .076 ppm
Yancey .083 ppm

 

 

 

 

 

 

 

 

 

 

Table 4. The following table shows 1 monitored county with only 2 years of data (1999-2000) which is below the attainment threshold. The first column lists the county; the second lists the average values for that county.

County Average Value
Jackson .084 ppm

 

 

 

Note:

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