DOI: 10.1111/ina.12238
Online supporting information for the following article published in Indoor Air
DOI: TO BE ADDED BY THE PRODUCTION EDITOR
Unexpected increase in indoor pollutants after the introduction of a smokefree policy in a correctional centre
Congrong He PhD1, Luke D. Knibbs PhD1,2, Quang Tran PhD1, Hao Wang PhD1,3, Rusdin
Laiman MD1, Boguang Wang PhD4, Yinggang Gu MD4, Lidia Morawska PhD1*
1
International Laboratory for Air Quality and Health, Institute of Health and Biomedical
Innovation, Queensland University of Technology (QUT), GPO Box 2434, Brisbane, 4001,
Australia
2
School of Population Health, The University of Queensland, Herston, Queensland, 4006,
Australia
3
Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211
Kuopio, Finland
4
Department of Environmental Engineering, Jinan University, Guangzhou, China
* Address corresponding author to Lidia Morawska, Queensland University of Technology,
GPO Box 2434, Brisbane, Queensland 4001, Australia; Ph: + 61 7 3138 2616; Fax: + 61 7
3138 9079; Email: l.morawask@qut.edu.au
Meteorological and ventilation conditions
The average and range of temperature and relative humidity for both the pre- and post-ban
measurements are given in Table S1. All relevant information about the meteorological
parameters is presented in Supporting Information Table S2, from which it can be seen that
the dominant wind direction for both rounds was NW, which was from the direction of the
motorway and power stations. Meteorological conditions remained fairly constant throughout
the two measurement periods, with the exception of rain on 25 May 2012.
1
The pre- and post-ban measurements were conducted during the winter and summer,
respectively. During winter, the mechanical ventilation systems were turned on in all of the
Units, however they were turned off during the summer. Therefore, the air exchange rates in
these units was expected to be different between the pre- and post-ban measurements.
Table S1. The average and range of temperature and relative humidity parameters during the
pre- and post-ban measurements, based on Bureau of Meteorology data.
23-27/05/2012
03-08/12/2012
RH (%)
Average Range
66
45 - 83
44
34 - 63
Temp. (ºC)
Average Range
8.3
6.3 - 12.1
17.7 12.6 - 24.3
Table S2. Local meteorology data during the measurement at the correctional centre
Date
Temp R
Min Max
9 am
Temp RH Cld
Dir Spd
3 pm
Temp RH Cld Dir Spd
May
23
24
25
26
27
2.8
-0.2
6.4
4.0
0.8
15.7
12.5
10.1
9.0
11.9
0
0
27.6
0.4
0
9.2
6.2
7.0
4.8
6.0
54
76
61
68
80
0
6
7
8
4
NW
NW
NW
W
Calm
14.0
11.7
6.4
2.4
8.8
7.4
27.6
20.8
17.7
23.3
20.8
27.9
1.0
0
0
0
0
0
14.6
13.4
10.2
11.4
12.4
16.9
94
60
44
49
76
72
8
0
1
1
8
1
Calm
WNW
W
Calm
NNW
Calm
17
4
26
28
0
14.9
10.9
7.7
7.5
9.0
36
90
54
75
66
0
8
7
8
7
NW
N
NW
W
SW
11
13
37
15
11
25.9
19.9
14.9
22.2
18.9
27.3
34
20
37
18
49
23
5
1
3
1
8
6
W
WNW
W
SW
N
WNW
37
41
37
7
9
15
Dec.
3
4
5
6
7
8
46
52
9
Note: Temp: Temperature (°C ); Min: Minimum; Max: Maximum; R: Rain (mm); RH;
Relative Humidity (%); Cld: Cloud; Dir: wind direction; Spd: Wind speed (km/h).
Table S3. Comparison of overall 24 hour average outdoor particle concentrations (PM2.5 and
particle number) during the pre- and post-ban measurements, as well as ratios between the
pre- and post-ban measurements.
Average
S.D
Min
Max
Median
PM2.5 (µg m-3)
1
2
8
12
4
1
5
10
13
13
8
12
1/2
Ratio
0.68
0.57
PN (× 103 p cm-3)
1
2
4.55
6.67
1.47
1.40
3.12
5.38
6.56
8.95
4.27
6.08
1/2
Ratio
0.68
0.70
2
Note: The numbers “1” and “2” listed above the columns denote the pre-ban and post-ban
results.
Workshop
Unit A
Health Centre
Office
Cells
Unit B
Office
Indoor location
Unit D
Unit C
Outdoor location
Figure S1. A schematic diagram of the buildings and measurement locations in the Correction
Centre.
0.7
Outdoor CO
Guards left
0.4
0.3
0.2
0.1
8/12 13:30
8/12 12:00
8/12 10:30
8/12 09:00
8/12 07:30
8/12 06:00
8/12 04:30
8/12 03:00
8/12 01:30
8/12 00:00
7/12 22:30
7/12 21:00
7/12 19:30
7/12 18:00
7/12 16:30
7/12 15:00
7/12 13:30
7/12 12:00
0
7/12 10:30
CO (ppm)
0.5
Guards came
Indoor CO
0.6
Time
3
Figure S2. Time series of indoor and outdoor CO concentrations in Unit C on 7 and 8
December 2012 (post-ban). The guards left before 15:15 on 7 December and entered shortly
after 07:30 on 8 December.
18.0
Pre-ban
16.0
Post-ban
Benzene concentration (µg m-3)
14.0
12.0
10.0
8.0
6.0
4.0
2.0
Workshop
Unit B&C Office
Sampling Location
Health centre
Unit D
Unit C
Unit B
Unit A
Outdoor
0.0
Figure S3. Average indoor and outdoor benzene concentrations levels pre-ban and post-ban.
4