Table 1.

Percent decrement in FEV₁ for 6.6 hr of exposure to FA and 0.06 ppm O₃ for individuals in the Adams (2006) study.

Subject	ΔFA	ΔO3	ΔO3 – ΔFA
1	−1.46	−0.87	0.59
2	0.20	3.01	2.81
3	−0.29	5.93	6.23
4	−5.33	−3.52	1.81
5	−8.62	−3.75	4.87
6	−2.94	−3.89	−0.95
7	−0.21	0.21	0.42
8	−0.28	3.43	3.71
9	−3.12	3.91	7.03
10	−6.32	6.43	12.76a
11	−0.53	0.53	1.07
12	4.76	−2.66	−7.42a
13	−1.71	−2.87	−1.16
14	−0.42	2.87	3.29
15	−1.16	−0.57	0.58
16	−5.54	−1.74	3.80
17	−0.62	−1.05	−0.43
18	−4.35	1.88	6.23
19	−3.17	1.98	5.15
20	2.02	5.03	3.00
21	−2.19	3.66	5.85
22	−2.19	−5.13	−2.93
23	0.21	14.73	14.52a
24	−0.58	0.59	1.17
25	−0.27	0.54	0.81
26	−4.14	1.10	5.24
27	1.79	2.02	0.23
28	0.19	−0.40	−0.60
29	0.87	4.21	3.34
30	5.02	9.62	4.60
Mean	−1.35	1.51	2.85
SD	2.98	4.24	4.28

ΔO₃ – ΔFA represents the decrements due to 0.06 ppm O₃ corrected for any FA effects. Data are FEV₁ percent decrements from preexposure; a negative number indicates an increase or improvement in FEV₁.

^aPotential outlier according to the Tukey criteria.