Vehicular road influence areas
Vehicle operation over paved and unpaved roads is an emission source that significantly contributes to air pollution. Emissions are derived from vehicle exhaust pipes and re-suspension of particulate matter generated by wind erosion and tire to road surface interactions. Environmental authorities re...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2017
- Institución:
- Universidad Tecnológica de Bolívar
- Repositorio:
- Repositorio Institucional UTB
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.utb.edu.co:20.500.12585/8938
- Acceso en línea:
- https://hdl.handle.net/20.500.12585/8938
- Palabra clave:
- Air pollution
Impact area
Mobile sources
Vehicular emissions
Air pollution
Air quality
Air quality standards
Crashworthiness
Distribution functions
Magnetic levitation vehicles
Pollution
Roads and streets
Transportation
Environmental Authority
Impact area
Meteorological condition
Mobile sources
National Air Quality Standards
Pollutant concentration
Pollutant dispersions
Vehicular emission
Curves (road)
Air quality
Anthropogenic effect
Atmospheric pollution
Atmospheric transport
Concentration (composition)
Dimensionless number
Experimental study
Methodology
Particulate matter
Pollutant source
Traffic emission
Wind erosion
Air pollutant
Article
Atmospheric dispersion
Exhaust gas
Meteorology
Methodology
Motor vehicle
Motor vehicle tire
Particulate matter
Priority journal
Surface property
Weather
Wind erosion
- Rights
- restrictedAccess
- License
- http://creativecommons.org/licenses/by-nc-nd/4.0/
Summary: | Vehicle operation over paved and unpaved roads is an emission source that significantly contributes to air pollution. Emissions are derived from vehicle exhaust pipes and re-suspension of particulate matter generated by wind erosion and tire to road surface interactions. Environmental authorities require a methodology to evaluate road impact areas, which enable managers to initiate counter-measures, particularly under circumstances where historic meteorological and/or air quality data is unavailable. The present study describes an analytical and experimental work developed to establish a simplified methodology to estimate the area influenced by vehicular roads. AERMOD was chosen to model pollutant dispersion generated by two roads of common attributes (straight road over flat terrain) under the effects of several arbitrary chosen weather conditions. The resulting pollutant concentration vs. Distance curves collapsed into a single curve when concentration and distance were expressed as dimensionless numbers and this curve can be described by a beta distribution function. This result implied that average concentration at a given distance was proportional to emission intensity and that it showed minor sensitivity to meteorological conditions. Therefore, road influence was defined by the area adjacent to the road limited by distance at which the beta distribution function equaled the limiting value specified by the national air quality standard for the pollutant under consideration. © 2016 Elsevier Ltd |
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