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Table 2 Exposure measurements in the transport hub and the park

From: Acute effects on pulmonary function in young healthy adults exposed to traffic-related air pollution in semi-closed transport hub in Beijing

Exposure variable Transport hub Park P value
Median P25 P75 Median P25 P75
PM2.5 (μg/m3) 162.10 107.20 210.25 53.00 13.00 67.60 0.01*
BC (μg/m3) 17.89 11.67 23.52 3.52 1.11 5.71 0.01*
CO (ppm) 2.52 1.84 2.99 1.08 0.54 1.53 0.01*
Temp (°C) 29.33 26.27 30.39 28.39 25.66 28.40 0.51
RH (%) 53.29 46.56 58.12 39.21 29.71 52.94 0.01*
  1. P25 percentile 25, P75 percentile 75
  2. * P < 0.05