PM2.5 Design Values for 2001-2003 in NC Counties

A map of North Carolina PM2.5 Design Values from 2001 to 2003.

Figure 1 Annual Design Values (Mean) (click for larger image)

Table 1. The following table shows 28 counties with a 3-year average of the annual mean PM2.5 for each year below the established standard. The first column lists the county; the second lists the average value for that county.

CountyAverage value
Alamance13.7 µg/m3
Buncombe13.0 µg/m3
Cabarrus14.5 µg/m3
Caswell13.3 µg/m3
Chatham12.2 µg/m3
Cumberland13.8 µg/m3
Duplin11.9 µg/m3
Durham13.9 µg/m3
Edgecombe12.6 µg/m3
Forsyth14.6 µg/m3
Gaston14.0 µg/m3
Guilford14.0 µg/m3
Haywood13.6 µg/m3
Jackson12.4 µg/m3
Lenoir11.5 µg/m3
McDowell14.2 µg/m3
Mecklenburg14.9 µg/m3
Mitchell13.4 µg/m3
Montgomery12.1 µg/m3
New Hanover9.6 µg/m3
Onslow11.1 µg/m3
Orange13.1 µg/m3
Pitt12.4 µg/m3
Robeson12.7 µg/m3
Swain12.9 µg/m3
Wake13.8 µg/m3
Watauga11.7 µg/m3
Wayne13.7 µg/m3

Table 2. The following table shows 2 counties with a 3-year average of the annual mean PM2.5 for each year above the established standard. The first column lists the county; the second lists the average value for that county.

Note:

  • Additional counties may be involved in emission reduction strategies
  • Nonattainment designations may not follow county boundaries
CountyAverage value
Catawba15.5 µg/m3
Davidson15.8 µg/m3

Table 3. The following table shows 2 counties that were monitored in 2003 but did not have a complete and valid 3-year average of the annual mean PM2.5 that could be compared to the established standard.

CountyAverage value
MartinN/A µg/m3
NashN/A µg/m3