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Methodology Development
A Simplified Model for Spatially Differentiated Impact Assessment of Air Emissions
Yuichi Moriguchi; Atsushi Terazono
Corresponding author:: Yuichi Moriguchi, Social and Environmental Systems Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-0053, Japan, (e-mail: moriguti@nies.go.jp)
We developed a simplified emission dispersion and
exposure-assessment model designed to reflect the site-specific
health impacts of air pollution in life-cycle impact assessment
(LCIA). We proposed an EXposure Per Emission Coefficient
(EXPEC), a dimensionless parameter representing the relative
amount of pollutant inhaled per emission. EXPEC values were
calculated for two typical source categories ? electric power
plants and road vehicles ? on a concentric circle model. The
EXPEC values were significantly different for different locations
and source categories. We examined the application of EXPEC
in a case study that compared the effects of emissions from elec-tric
and gasoline-engine vehicles. EXPEC is a useful tool for
assessing spatially differentiated potential impacts.
| | Keywords: concentric circle model; electric vehicles, electric power plants; EXposure Per Emission Coefficient (EXPEC); gasoline-engine vehicles; LCIA; life-cycle impact assessment; spatially differentiated potential impact; air emissions |
5 LCA (5) 281-286 (2000)
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