PM2.5 Design Values for 2000-2002 in NC Counties


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

Table 1. The following table shows 24 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. Some entries have an additional comment indicating the design value given is based on incomplete data.

County Average value Additional comment
Alamance 14.5 µg/m3 at least one calendar quarter was not valid
Buncombe 14.6 µg/m3  
Caswell 14.0 µg/m3  
Chatham 12.8 µg/m3  
Cumberland 14.7 µg/m3  
Duplin 12.6 µg/m3  
Edgecombe 14.1 µg/m3 at least one calendar quarter was not valid
Gaston 14.7 µg/m3  
Haywood 14.6 µg/m3  
Jackson 13.3 µg/m3 at least one calendar quarter was not valid
Lenoir 12.1 µg/m3  
Mitchell 14.0 µg/m3  
Montgomery 13.0 µg/m3  
New Hanover 11.5 µg/m3  
Onslow 11.6 µg/m3  
Orange 13.6 µg/m3  
Pasquotank 12.0 µg/m3  
Pitt 13.0 µg/m3  
Robeson 12.8 µg/m3 at least one calendar quarter was not valid
Swain 13.4 µg/m3  
Wake 14.6 µg/m3  
Watauga 11.7 µg/m3 at least one calendar quarter was not valid
Wayne 14.6 µg/m3  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2. The following table shows 7 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: Nonattainment designations may not follow county boundaries and will be based on later data than are shown in this table.

County Average value
Cabarrus 15.1 µg/m3
Catawba 16.4 µg/m3
Davidson 16.8 µg/m3
Forsyth 15.6 µg/m3
Guilford 15.2 µg/m3
McDowell 15.6 µg/m3
Mecklenburg 15.8 µg/m3