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 |