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Table 3 Fraction of exhaled nitric oxide (FENO ppb) in healthy volunteers exposure to diesel exhaust or ozone

From: Diesel exhaust but not ozone increases fraction of exhaled nitric oxide in a randomized controlled experimental exposure study of healthy human subjects

Flow rate FENO270 FENO100 FENO50 FENO10 FENO270 FENO100 FENO50 FENO10
  Air Diesel
Pre exposure 3.9 ± 1.5 8.4 ± 3.1 14.5 ± 5.3 46.6 ± 18.5 4.0 ± 1.0 8.2 ± 2.5 14.0 ± 4.7 46.2 ± 16.8
 6 hours 4.1 ± 1.4 9.9 ± 2.7 15.7 ± 4.8 49.9 ± 18.8 4.7 ± 1.7 10.5 ± 3.7 17.7 ± 5.6# 58.8 ± 21.0*
 24 hours 4.0 ± 1.7 9.0 ± 3.1 14.6 ± 5.4 47.2 ± 20.9 4.4 ± 1.0 8.8 ± 2.6 15.3 ± 4.5 50.2 ± 15.6
  Air Ozone
Pre exposure 4.6 ± 1.7 9.3 ± 4.0 16.1 ± 7.5 57.3 ± 31.6 4.5 ± 1.5 8.5 ± 2.7 14.1 ± 6.1 49.0 ± 20.1
 6 hours 4.7 ± 1.8 10.0 ± 4.6 17.1 ± 8.7 58.3 ± 35.8 4.6 ± 1.4 9.1 ± 2.8 15.7 ± 5.3 51.0 ± 21.3
 24 hours 4.8 ± 1.9 9.9 ± 4.4 16.7 ± 8.1 59.1 ± 32.7 4.4 ± 1.2 8.9 ± 2.8 14.7 ± 4.5 50.1 ± 17.8
  1. Diesel exhaust versus air: #p = 0.011 *p = 0.010.
  2. Values are reported as mean ± SD.