Additional file 1: of Repeated measures of inflammation, blood pressure, and heart rate variability associated with traffic exposures in healthy adults

Additionally measured exposure metrics at each location. Values represent means ± SD. Traffic volume data for the GSP were obtained for the Essex Toll Plaza using the New Jersey Turnpike Authority’s Open Public Records Act. Traffic volume data at the GWB were obtained for the GWB upper level and Palisades Interstate Parkway toll records from the PANYNJ. No traffic was observed at SF, as verified by study staff during exposures. SF = Sterling Forest; GSP = Garden State Parkway; GWB = George Washington Bridge. N/A = not applicable. aUnpaired t-test. bOnly a single measurement of noise was made at SF. Noise levels at SF without sampler on were below detection limit for instrument (dB