PM10 Average Values for 2011-2013 in NC Counties

Table 1. The following table shows 3-year averages for the 98th percentile of PM10 concentrations. The first column lists the county, the second lists the average value for that county. In Counties with more than one PM10 monitoring site, the value reported is the highest 3-year average among the inclusive sites.

County Average 98th Percentile
Catawba 28 µg/m3
Cumberland 38 µg/m3
Durham 26 µg/m3
Forsyth 25 µg/m3
Guilford 23 µg/m3
Mecklenburg 37 µg/m3
Wake 26 µg/m3