Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27009
Title: In-cabin exposure levels of carbon monoxide, carbon dioxide and airborne particulate matter in air-conditioned buses of Hong Kong
Authors: Wong, LT 
Mui, KW 
Cheung, CT
Chan, WY
Lee, YH
Cheung, CL
Keywords: Bus travelling
Carbon dioxide
Carbon monoxide
Exposure
Particulate matter
Issue Date: 2011
Publisher: SAGE Publications
Source: Indoor and built environment, 2011, v. 20, no. 4, p. 464-470 How to cite?
Journal: Indoor and built environment 
Abstract: Bus cabin air quality has not been incessantly monitored in Hong Kong. This study investigates the in-cabin exposure levels of CO, CO 2 and PM 10 for running buses in Hong Kong that are equipped with Euro II, III and IV engines. A representative urban-suburban bus route was chosen and there were no significantly different in-cabin CO levels reported among engine types and between rush and non-rush hours. However, in-cabin CO level was found significantly associated with ambient/roadside CO level; the former was altogether higher than the latter due to the bus' own exhaust. Regarding in-cabin PM 10 concentration, the engine type played a major role. The outcome demonstrates that new buses (i.e. Euro IV) generally provide a better in-cabin environment for commuters. Therefore, implementation of an air filtration upgrade, together with a routine filter cleaning schedule, is an effective measure to ameliorate bus cabin air quality. This study also provides useful information for further investigation into the causal relationship between health risks and long-term air pollution exposure in local bus cabins.
URI: http://hdl.handle.net/10397/27009
ISSN: 1420-326X
EISSN: 1423-0070
DOI: 10.1177/1420326X11409450
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

8
Last Week
1
Last month
1
Citations as of Aug 21, 2017

WEB OF SCIENCETM
Citations

4
Last Week
0
Last month
0
Citations as of Aug 16, 2017

Page view(s)

41
Last Week
2
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.