SO2 Average Values for 2007-2009 in NC Counties

A map of North Carolina counties with sulfur dioxide ninety-ninth percentile averages from 2007 to 2009.

 

Table 1. The following table shows 3-year averages for the 99th percentile of daily maximum SO2concentrations. 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 43 percent. The other counties were below the standard.

CountyAverage 99th Percentile
Beaufort33.3 PPB
Forsyth37.3 PPB
Mecklenburg60.6 PPB
New Hanover107.3 PPB
Wake17.0 PPB