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