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Table 3 Pollutant and meteorological concentrations at each location

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

  Overall means SF GSP GWB P-value
PM2.5 (μg/m3) 20 13 (7–24) 21 (9–50) 31 (11–45) < 0.01
PM10 (μg/m3) 26 16 (6–29) 26 (17–48) 38 (21–50) < 0.01
PM2.5 EC (μg/m3) 2.0 0.6 (0.0–1.7) 1.7 (0.1–3.3) 5.3 (0.1–13.2) < 0.01
PM10 EC (μg/m3) 2.6 0.9 (0.1–2.5) 2.3 (0.0–7.2) 6.6 (2.2–15.7) < 0.01
BC (μg/m3) 3.3 1.5 (0.2–3.6) 2.8 (1.3–4.1) 7.2 (4.1–10.9) < 0.01
PM2.5 OC (μg/m3) 13.9 10 (4–20) 13 (8–20) 21 (12–29) < 0.01
Ozone (ppm)a 0.05 0.04 (0.02–0.06) 0.04 (0.01–0.06) 0.04 (0.02–0.06) 0.92
Temperature (°F)b 74 71 (50–81) 75 (66.87) 75 (70–91) 0.24
Relative humidity (%)b 72 69 (47–95) 79 (56–97) 65 (49–84) 0.03
  1. SF Sterling Forest, GSP Garden State Parkway, GWB George Washington Bridge. P-values were calculated using a 1-factor ANOVA
  2. aHourly ozone concentrations were obtained from the US EPA Air Quality System Data Mart
  3. bHourly relative humidity and ambient temperature measurements were obtained from New Jersey Department of Environmental Protection’s Air Quality Index Now
  4. Values expressed as mean (range)