A High Resolution Atmospheric Emissions
Inventory For Road Vehicle Sources And The Factors
Influencing Its Accuracy And Sensitivity
Author(s)
R.C. Mann and R.S. Sokhi
Abstract
A high resolution atmospheric emissions
inventory for road vehicle sources and the factors
influencing its accuracy and sensitivity
R C Mann and R S Sokhi
Atmospheric Science Research Group (ASRG), Department of
Environmental Sciences, University of Hertfordshire, College Lane,
Hatfield, Hertfordshire, AL10 9AB, UK
EMail: r. s. sokhi@herts. ac. uk
Abstract
This paper discusses the factors that need to be considered when developing a high resolution
1x1 km emissions inventory and describes their application to a 625 km* area within
Hertfordshire, UK. The emissions of CO and NOx from motor vehicles are estimated by 5
classes of vehicle and 5 different road types. An assessment is made of the proportions of
emissions within urban and rural areas together with those created by cold starts. Trends in
emissions for the years 2000 and 2005 are estimated The high levels of CO emissions from
urban driving and cold starts are identified and the level of reductions achievable fr
Keywords
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