|
5-minute
|
30-minute
|
60-minute
|
90-minute
|
---|
|
Mean
|
Median
|
Mean
|
Median
|
Mean
|
Median
|
Mean
|
Median
|
---|
( n, SD)
|
(IQR)
|
( n, SD)
|
(IQR)
|
( n, SD)
|
(IQR)
|
( n, SD)
|
(IQR)
|
---|
PM2.5, mean (μ g/m3)
|
14
|
11
|
14
|
12
|
14
|
12
|
14
|
12
|
(3314, 12)
|
(10)
|
(3140, 9)
|
(11)
|
(2939, 8)
|
(9)
|
(2733, 8)
|
(8)
|
Ozone, max (ppb)
|
84
|
69
|
85
|
73
|
87
|
77
|
89
|
83
|
(4406, 66)
|
(65)
|
(4118, 52)
|
(66)
|
(3832, 46)
|
(73)
|
(3550, 43)
|
(65)
|
CO, max (ppm)
|
6
|
2
|
6
|
2
|
6
|
3
|
6
|
3
|
(4353, 8)
|
(8)
|
(4086, 7)
|
(10)
|
(3806, 6)
|
(10)
|
(3524, 6)
|
(9)
|
CO2, max (ppm)
|
461
|
426
|
462
|
431
|
462
|
433
|
462
|
432
|
(4371, 97)
|
(96)
|
(4088, 79)
|
(106)
|
(3802, 73)
|
(104)
|
(3520, 69)
|
(105)
|
Formaldehyde, max (ppb)
|
35
|
23
|
34
|
25
|
35
|
26
|
35
|
27
|
(1784, 39)
|
(26)
|
(1663, 26)
|
(30)
|
(1519, 24)
|
(31)
|
(1379, 23)
|
(34)
|
NO2, max (ppb)
|
130
|
68
|
131
|
69
|
130
|
71
|
128
|
74
|
(4406, 135)
|
(114)
|
(4118, 121)
|
(137)
|
(3832, 114)
|
(155)
|
(3550, 108)
|
(156)
|
NOx, max (ppb)
|
131
|
23
|
131
|
23
|
130
|
25
|
128
|
25
|
(4406, 187)
|
(186)
|
(4118, 176)
|
(240)
|
(3832, 169)
|
(237)
|
(3550, 161)
|
(226)
|
- Sample sizes are the total number of repeated observations across all 16 subjects.