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Table 1 Diesel exhaust and filtered air exposure characteristics (averages and variability) from DE and FA runs in the EAPOC study

From: Acute diesel exhaust exposure and postural stability: a controlled crossover experiment

  Filtered air Diesel exhaust
  Mean Standard deviation Mean Standard deviation
Temperature (°C) 26.6 0.6 26.4 1.2
Relative humidity (%) 32.1 8.5 35.5 7.5
PM2.5 concentration (μg/m3) 2.4 7.1 289.6 58.0
TVOC (ppb) 124.5 103.0 1425 364.5
CO2 (ppm) 794.1 109.0 2098 353.5
CO (ppm) 0.7 0.9 11.5 2.85
NO (ppb) 26.7 34.6 7778 2211
NO2 (ppb) 51.9 59.8 283.1 238.7
NOx (ppb) 64.7 55.1 8062 2331
  1. TVOC (total volatile organic compounds); PM2.5 (particulate matter aerodynamic diameter < 2.5 μm); CO2 (carbon dioxide); CO (carbon monoxide); NO (nitrogen oxide); NO2 (nitrogen dioxide); ppb (parts per billion); ppm (parts per million)