Document Detail


Modeling mobile source emissions during traffic jams in a micro urban environment.
MedLine Citation:
PMID:  12391809     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Urbanization typically involves a continuous increase in motor vehicle use, resulting in congestion known as traffic jams. Idling emissions due to traffic jams combine with the complex terrain created by buildings to concentrate atmospheric pollutants in localized areas. This research simulates emissions concentrations and distributions for a congested street in Minsk, Belarus. Ground-level (up to 50-meters above the street's surface) pollutant concentrations were calculated using STAR (version 3.10) with emission factors obtained from the U.S. Environmental Protection Agency, wind speed and direction, and building location and size. Relative emissions concentrations and distributions were simulated at 1-meter and 10-meters above street level. The findings demonstrate the importance of wind speed and direction, and building size and location on emissions concentrations and distributions, with the leeward sides of buildings retaining up to 99 percent of the emitted pollutants within 1-meter of street level, and up to 77 percent 10-meters above the street.
Authors:
Valery V Kondrashov; Vladimir P Reshetin; James L Regens; James T Gunter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental science and pollution research international     Volume:  9     ISSN:  0944-1344     ISO Abbreviation:  Environ Sci Pollut Res Int     Publication Date:  2002  
Date Detail:
Created Date:  2002-10-23     Completed Date:  2002-11-05     Revised Date:  2009-08-14    
Medline Journal Info:
Nlm Unique ID:  9441769     Medline TA:  Environ Sci Pollut Res Int     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  333-6     Citation Subset:  IM    
Affiliation:
Radiation Physics and Chemistry Problems Institute, National Academy of Science of Belarus, Sosny-Minsk, 220109, Belarus.
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MeSH Terms
Descriptor/Qualifier:
Air Movements
Cities
Environmental Monitoring
Models, Theoretical*
Transportation*
Vehicle Emissions / analysis*
Wind
Chemical
Reg. No./Substance:
0/Vehicle Emissions

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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