Orange County NC Website
Table 2 - 2 . Locations of Monitoring Sites In and Around Orange County <br /> Pollutant County City Address <br /> CO Orange Chapel Hill 147 East Franklin St . <br /> PM2 . 5 Orange Chapel Hill 104 Mason Road <br /> PM10 Durham Durham Health Dept . , 300 E . Main St . <br /> Wake Raleigh Fire Station # 9 , Six Forks Rd . <br /> Guilford Greensboro Edgeworth and Bellemead <br /> Ozone Chatham Pittsboro Rt . 4 , Box 62 <br /> Durham Durham 2700 N . Duke St . <br /> Wake Raleigh E . Millbrook Jr . High School <br /> Wake Raleigh 808 North State <br /> Wake Fuquay 20 1 North Street <br /> Wake WRAL tower 5033 TV Tower Rd off 70E <br /> Person - - SR 49 <br /> Caswell - - Cherry Grove Rec . <br /> Guilford - - Keely Park . <br /> Forsyth Winston- Salem Four sites <br /> Nitrogen oxides Durham Durham 2700 North Duke St . <br /> Wake Raleigh 808 N . State St . <br /> southwest quadrants , the State believes the measurements at the monitors in the adjacent counties <br /> are representative of the affect of ozone precursor emissions from Orange County. However, <br /> because an ozone monitor is not located in the County, local ozone concentrations can not be <br /> determined . Nor can the County determine the impact of ozone precursor emissions from <br /> adjacent geographical areas on air quality in the County. <br /> Due to the proposed lowering of the ozone standard and addition of the PM2 . 5 standard, <br /> ozone, nitrogen oxides , hydrocarbons , PM2 . 5 , and PM10 are most likely to be the pollutants of <br /> greatest concern to the County in the coming years . Carbon monoxide is no longer of great <br /> concern . Advances in control technologies have reduced, but not eliminated, concerns about <br /> sulfur dioxide . <br /> 2 . 3 Historical Air Quality Data and Trends in the County and State <br /> Air quality data for the criteria pollutants are available from the North Carolina Division <br /> of Air Quality. Data can be retrieved from the EPA Aerometric Information Retrieval System <br /> (AIRS ) Air Quality Subsystem . Air quality data can be retrieved by accessing the NC Division <br /> of Air Quality Internet site at http : //daq . state . ne . us/Offices/1\4onitoring/gklk98nc . htnil . The <br /> Offices and Regions , Monitoring Branch, Data & Statistics page links to Quick Look summaries <br /> of data for the individual criteria pollutants as well as the EPA Pollutant Standard Index . <br /> 5 <br />