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ID 43756
file
creator
Tokumitsu, Hiroyuki
Kojima, Keisuke
subject
Polycyclic aromatic hydrocarbons
PAHs
particulate matter
vehicle emission factor
NDC
Chemistry
abstract
In order to consider the total atmospheric loadings of the PAHs (polycyclic aromatic hydrocarbons) from traffic activities, the emission factors of PAHs were estimated and from the obtained emission factors and vehicle transportation statistics, total atmospheric loadings were integrated and the loadings into the water body were estimated on a regional scale. The atmospheric concentration of PAHs was measured at the roadside of a heavy traffic road in the Hiroshima area in Japan. The samplings were conducted in summer and winter. Atmospheric particulate matters (fine particle, 0.6~ 7 μm; coarse particle, over 7 μm) and their PAH concentration were measured. Also, four major emission sources (gasoline and diesel vehicle emissions, tire and asphalt debris) were assumed for vehicle transportation activities, the chemical mass balance method was applied and the source partitioning at the roadside was estimated. Furthermore, the dispersion of atmospheric particles from the vehicles was modelled and the emission factors of the sources were determined by the comparison to the chemical mass balance results. Based on emission factors derived from the modelling, an atmospheric dispersion model of nationwide scale (National Institute of Advanced Industrial Science and Technology - Atmospheric Dispersion Model for Exposure and Risk assessment: AIST-ADMER) was applied, and the atmospheric concentration and loading to the ground were calculated for the Hiroshima bay watershed area.
journal title
Water Science & Technology
volume
Volume 56
issue
Issue 1
start page
233
end page
242
date of issued
2007-07
publisher
IWA Publishing
issn
0273-1223
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
(c) IWA Publishing 2007. The definitive peer-reviewed and edited version of this article is published in Water Science & Technology Vol. 56, No. 1, pp.233–242, 2007. doi:10.2166/wst.2007.457 and is available at www.iwapublishing.com.
relation url
department
Graduate School of Engineering



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