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

Air

Diesel

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

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*

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

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

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

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