|
Microenvironment or time frame
|
Mean
|
Min value
|
25th quantile
|
Median
|
75th quantile
|
Max value
|
|---|
|
Home
|
12.7
|
0.2
|
2.5
|
5.2
|
14.3
|
109.5
|
|
Transit
|
9.2
|
0.1
|
2.4
|
5.3
|
12.2
|
61.6
|
|
School
|
6.4
|
0.1
|
1.9
|
3.7
|
8.1
|
44.9
|
|
Complete sampleb
|
9.5
|
0.1
|
2.2
|
4.7
|
11.8
|
109.5
|
-
aStatistics were computed at the subject-day level, not distinguishing between versus within-subject data. Statistics were computed by first determining means within samples (subject, day and microenvironment), then computing statistics across the 125 samples. PM1.5 is particulate matter less than 1.5 μm in aerodynamic diameter. Home, Transit and School microenvironment times are summarized in the text
-
bApproximately 2:30pm through 11:30am the following day
