Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/3070
Title: A study on the human exposure in various transportation modes in Hong Kong
Authors: Liu, Yuk-man
Keywords: Automobiles -- Motors -- Exhaust gas
Automobiles -- China -- Hong Kong -- Environmental aspects
Hong Kong Polytechnic University -- Dissertations
Issue Date: 2001
Publisher: The Hong Kong Polytechnic University
Abstract: Vehicle exhaust is the major source of air pollution in Hong Kong. The aim of this study is to use field work data to determine the human exposure level to traffic-related air pollutants while commuting in Hong Kong. The in-vehicle air quality was assessed in eight public and two private transport. The public transport included franchised bus, minibus, taxi, Mass Transit Railway (MTR), Light Rail Transit (LRT), Kowloon Canton Railway (KCR), tram and ferry while the private transport were car and light goods vehicle. The in-vehicle concentrations of gaseous (CO, SO₂ and NOX), respirable suspended particulates (RSP) and volatile organic compounds (VOCs) inside the vehicle compartment were measured. As CO is a relative stable compound among various primary traffic-related air pollutants, it was used for initial assessment of this study. The effects of traversing various commuting corridors on exposure levels of commuters were investigated. The in-vehicle CO level is greatly influenced by the out-vehicle CO level. There is an indication that external air pollutants penetrated into the in-vehicle compartment through car body cracks and ventilation system. Street canyon and high traffic volume are the causes of higher in-vehicle CO level in commercial area. In-vehicle CO level is the highest while traversing tunnel microenvironments. The choice of transport influenced the exposure level of a commuter significantly. In general, the exposure level in road transport is higher than in non-road transport. The average in-vehicle air pollution levels were similar in air-conditioned and non-air-conditioned vehicles. Height and size of vehicle, types of travelling route, leakage and intake position of ventilation system were the factors influencing human exposure to air pollution while commuting. The commuter exposure to traffic-related air pollutants in Hong Kong is lower than in most other cities.
Description: viii, 107 leaves : ill. (some col.) ; 30 cm.
PolyU Library Call No.: [THS] LG51 .H577M CSE 2001 Liu
URI: http://hdl.handle.net/10397/3070
Rights: All rights reserved.
Appears in Collections:Thesis

Files in This Item:
File Description SizeFormat 
b15784290_link.htmFor PolyU Users 162 BHTMLView/Open
b15784290_ir.pdfFor All Users (Non-printable) 6.79 MBAdobe PDFView/Open
Show full item record

Page view(s)

463
Last Week
2
Last month
Checked on Feb 19, 2017

Download(s)

201
Checked on Feb 19, 2017

Google ScholarTM

Check



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