Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/120140
Title: COMMUTER EXPOSURE TO AEROSOL POLLUTION ON PUBLIC TRANSPORT IN SINGAPORE
Authors: TAN SOK HUANG
Keywords: personal exposure, particulate matter, transport microenvironment, transport mode
Issue Date: 6-Jan-2015
Source: TAN SOK HUANG (2015-01-06). COMMUTER EXPOSURE TO AEROSOL POLLUTION ON PUBLIC TRANSPORT IN SINGAPORE. ScholarBank@NUS Repository.
Abstract: A large proportion of aerosol exposure is experienced during daily commuting trips due to the proximity to traffic. Improved understanding of the variability across transport modes and transportation choices is important for commuters and authorities. Mobile measurements of PM10, PM2.5, particle number (PN), black carbon (BC), carbon monoxide (CO), particulate polycyclic aromatic hydrocarbons (pPAH), and active surface area (ASA) were taken in downtown Singapore on bus, taxi, MRT, and by walking. Simultaneous measurements of PM, PN, and CO were taken at a local park. Mean PM2.5 concentrations on the bus, MRT, taxi, and walking modes are 1.17, 1.09, 1.11, 1.50 times higher than at the background site. PN exhibits a similar trend except for the MRT mode which has lower average values than at the background site. In-vehicle concentrations for buses and taxis are lower than those in the literature, which may be attributed to differences in study conditions.
URI: http://scholarbank.nus.edu.sg/handle/10635/120140
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