NO2 Average Values for 2011-2013 in NC Counties
For many years there have been only two NO2 monitors in NC using a "federal reference method."
![](https://files.nc.gov/deq/styles/_inline_extra_large_/public/images/2023-05/NO2-98th2011-2013.jpg?VersionId=xed4_sK_8sWzeoxBD.55nEWClGgeQHPu&itok=NceNkrjL)
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 | 41 ppb |
Mecklenburg | 41 ppb |