PM2.5 Average Values

Please click here to open the PM2.5 Daily Standard Design Values map as a PDF.

 

Please click here to open the PM2.5 Annual Design Values map as a PDF.

 

Table 1. The following table shows the 3-year averages (2013-2015) for PM2.5. The first column lists the county, the second column lists the annual average, and the third column lists the 98th percentile daily average. The current annual standard is 12 ug/m3 and the current daily standard is 35 ug/m3

County 2013-2015 Annual 3-Year Average

2013-2015 Daily 3-Year Average 

98th Percentile

Alamance 8.1 ug/m3 16 ug/m3
Buncombe 7.7 ug/m3 15 ug/m3
Caswell 8.8 ug/m3 18 ug/m3
Catawba 8.9 ug/m3 18 ug/m3
Cumberland 8.5 ug/m3 16 ug/m3
Davidson 9.2 ug/m3 23 ug/m3
Duplin 7.3 ug/m3 15 ug/m3
Durham 8.3 ug/m3 18 ug/m3
Forsyth 8.5 ug/m3 19 ug/m3
Guilford 8.4 ug/m3 19 ug/m3
Haywood 8.2 ug/m3 18 ug/m3
Jackson 7.3 ug/m3 15 ug/m3
Johnston 7.3 ug/m3 16 ug/m3
Martin 6.9 ug/m3 14 ug/m3
McDowell 8.4 ug/m3 16 ug/m3
Mecklenburg 9.0 ug/m3 18 ug/m3
Montgomery 8.0 ug/m3 15 ug/m3
New Hanover 6.5 ug/m3 14 ug/m3
Pitt 7.3 ug/m3 15 ug/m3
Rowan 8.7 ug/m3 17 ug/m3
Swain 7.6 ug/m3 18 ug/m3
Wake 10.7 ug/m3 22 ug/m3
Watauga 6.7 ug/m3 15 ug/m3
Wayne 8.9 ug/m3 18 ug/m3