SO2 Average Values for 2008-2010 in NC Counties

A map of North Carolina counties with sulfur dioxide ninety-ninth percentile averages from 2008 to 2010.


Table 1. The following table shows 3-year averages for the 99th percentile of daily maximum SO2 concentrations. The first column lists the county, the second lists the average value for that county. One county in this list, New Hanover, exceeded the national ambient standard of 75 PPB by 47 percent. The other counties were below the standard.

County Average 99th Percentile
Beaufort 31 PPB
Forsyth 20 PPB
Mecklenburg 40 PPB
New Hanover 110 PPB
Wake 14 PPB