NO2 Average Values for 2010-2012 in NC Counties

For many years there have been only two NO2 monitors in NC using a "federal reference method".

A map of North Carolina counties with nitrogen dioxide 98th percentile averages from 2010 to 2012

Table 1. The following table shows 3-year averages for the 98th percentile of daily maximum NO2 concentrations. The first column lists the county, the second lists the average value for that county.

County Average 98th Percentile
Forsyth 45 PPB
Mecklenburg 45 PPB