North Carolina Counties with 8-Hour Ozone Violations 2008-2010

Table 1. The following table shows 4 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). The first column lists the county; the second lists the average value for that county.

County Average value
Forsyth 0.076 ppm
Guilford 0.076 ppm
Mecklenburg 0.082 ppm
Rowan 0.077 ppm

 

 

 

 

 

 

Table 2. The following table shows 27 monitored counties that are attaining the 0.076 ppm standard. The first column lists the county; the second lists the average value for that county.

County Average Value
Alexander 0.070 ppm
Avery 0.067 ppm
Buncombe 0.068 ppm
Caldwell 0.069 ppm
Caswell 0.073 ppm
Chatham 0.068 ppm
Cumberland 0.071 ppm
Davie 0.072 ppm
Durham 0.072 ppm
Edgecombe 0.071 ppm
Franklin 0.071 ppm
Graham 0.073 ppm
Granville 0.074 ppm
Haywood 0.073 ppm
Jackson 0.066 ppm
Johnston 0.072 ppm
Lenoir 0.069 ppm
Lincoln 0.072 ppm
Martin 0.069 ppm
New Hanover 0.061 ppm
Person 0.072 ppm
Pitt 0.070 ppm
Rockingham 0.075 ppm
Swain 0.064 ppm
Union 0.072 ppm
Wake 0.073 ppm
Yancey 0.072 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