Nitrogen dioxide (NO2) concentrations relative to near road sites in Research Triangle area of North Carolina. This dataset is associated with the following publication: Smith, L., S. Mukerjee , K. Kovalcik , E. Sams , C. Stallings , E. Hudgens , J. Scott , T. Krantz , and L. Neas. Near-road measurements for nitrogen dioxide and its association with traffic exposure zones. Atmospheric Pollution Research. Turkish National Committee for Air Pollution Research and Control, Izmir, TURKEY, 6: 1082-1086, (2015).