Time-Location Patterns of a Population Living in an Air Pollution Hotspot
Table 2
Time spent in microenvironments (hour) by subject type, season and day-type in the WFS and CDS neighborhoods.
Category
Summer
Winter
Weekday
Weekend
Weekday
Weekend
Mean
SD
Med
95th %
Mean
SD
Med
95th %
Mean
SD
Med
95th %
Mean
SD
Med
95th %
School Children
( = 28)
( = 25)
( = 30)
( = 29)
āHome
17.8
3.8
17.6
24.0
19.1
4.1
20.4
24.0
16.3
3.7
15.6
24.0
16.8
4.7
17.0
22.6
āWork/School
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
3.8
3.8
3.8
8.0
0.5
1.6
0.0
5.1
āOutdoors in the neighborhood
4.2
3.5
3.6
10.6
3.4
4.2
1.1
11.5
1.8
2.7
1.0
10.0
3.4
2.8
2.9
8.6
āTotal in the neighborhood
22.3
2.8
24.0
24.0
22.7
2.7
24.0
24.0
22.1
2.9
24.0
24.0
21.5
4.0
24.0
24.0
āTotal indoors
18.3
3.9
18.0
24.0
19.3
4.1
20.4
24.0
20.8
3.0
21.8
24.0
18.9
3.7
20.0
23.0
āTotal outdoors
5.3
3.7
5.7
11.0
4.1
4.1
2.9
11.5
2.7
2.9
1.9
10.0
4.1
3.2
3.4
10.6
āTotal in-vehicle(s)
0.4
0.9
0.0
2.5
0.6
1.9
0.0
3.3
0.5
1.1
0.0
3.3
1.0
2.3
0.0
6.0
Employed Adults
( = 27)
( = 27)
( = 23)
( = 21)
āHome
14.9
5.6
14.0
24.0
17.3
6.0
19.0
24.0
15.7
5.6
17.2
22.0
17.8
3.4
17.8
22.6
āWork/
1.9
3.6
0.0
9.0
0.3
1.3
0.0
2.0
2.7
4.0
0.9
9.5
0.4
1.7
0.0
0.2
āOutdoors in the neighborhood
3.0
4.3
1.9
10.6
2.4
3.1
1.6
7.4
2.0
2.3
1.0
6.0
1.6
2.6
0.0
5.8
āTotal in the neighborhood
19.3
4.5
20.0
24.0
20.8
4.7
23.0
24.0
19.1
6.5
21.9
24.0
20.1
2.9
20.0
24.0
āTotal indoors
18.1
4.7
18.5
24.0
19.0
4.2
20.0
24.0
19.6
2.7
19.7
23.5
18.5
3.6
18.7
23.0
āTotal outdoors
4.1
4.6
4.0
11.5
3.8
3.9
2.8
12.0
3.1
2.8
2.6
6.2
3.9
3.8
2.0
12.0
āTotal in-vehicle(s)
1.8
2.0
1.3
5.5
1.2
1.5
0.8
4.3
1.3
1.4
1.0
3.8
1.6
1.9
0.9
5.0
Unemployed Adults
( = 34)
( = 32)
( = 30)
( = 29)
āHome
18.0
4.1
18.3
24.0
17.8
4.8
18.4
24.0
19.7
4.3
20.3
24.0
19.0
4.1
20.0
24.0
āWork/
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
1.1
2.5
0.0
6.7
0.4
1.5
0.0
3.0
āOutdoors in the neighborhood
3.5
2.9
3.4
9.5
2.9
3.2
1.7
9.0
1.8
2.5
0.4
6.5
2.0
2.6
1.0
7.7
āTotal in the neighborhood
22.3
2.5
24.0
24.0
21.6
3.2
23.0
24.0
22.4
3.7
24.0
24.0
21.9
3.1
24.0
24.0
āTotal indoors
18.8
3.7
18.9
24.0
18.8
4.1
19.1
24.0
21.2
3.2
22.8
24.0
20.2
3.3
21.0
24.0
āTotal outdoors
4.7
3.7
4.6
10.7
4.6
3.9
3.7
12.5
2.4
3.0
1.0
7.7
3.1
2.9
2.8
10.0
Total in-vehicle(s)
0.5
0.9
0.0
2.9
0.7
1.4
0.0
3.2
0.4
0.7
0.0
1.9
0.7
1.7
0.0
5.5
Note: SD: standard deviation; Med: median, 95th%: the 95th percentile. median of time spent at work by employed adults was zero on weekday in summer, because some subjectsā jobs were temporary or seasonal, for example, school teacher. adults include college students. Unemployed adults may also work temporarily.
