Environmental Researches

Environmental Researches

Air Dispersion Simulation Due to Non- Urban Road Traffic Using CALPUFF: A Case Study in Lorestan, Iran

Document Type : Original Article

Authors
Hossein Madadi 1
Hossein Moradi 2
Alireza Soffianian 3
Abdolrassoul Salmanmahiny 4
1 Assistant Professor, Dept. of the Environmental Sciences, Behbahan Khatam Alanbia University of Technology, Behbahab, Iran
2 Associate Professor, Dept. of the Environmental Sciences, Isfahan University of Technology, Isfahan, Iran
3 Professor, Dept. of the Environmental Sciences, Isfahan University of Technology, Isfahan, Iran
4 Professor, Dept. of the Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
10.22034/eiap.2024.182735.1952
Abstract
Roads as main infrastructure of development in spite of their social and economic advantages would lead to increase of air pollutants due to vehicles traffic. The main of this study is to estimate of suburban road networks impacts based on air pollution modeling approach. For this purpose, dispersion limits of CO, NO2, PM10 and SO2 pollutants emitted from Lorestan road network’s traffic have been investigated. The CALPUFF model were used to simulate pollutants in four seasons. Traffic volume and velocity, pollutants emission rate, synoptic meteorological data, land cover map, digital elevation model and slope map were used as input data. The result of modeling for 2461 km of road showed that maximum concentration of pollutants is in autumn and located in distance about 2 km from the roads. Based on the modeling outputs, SO2 gas has most distribution than the rest of pollutants. The most rate of rural population exposed to the air pollution of road networks are 11/5 percentage of all population of Lorestan province. This occurs in autumn. Although the mainly studies on air pollution have been focused in urban areas, but the results of this study in a province with natural regions showed even these regions are not in safe from the air pollution. Therefore, it is essential to attention of environmental consideration in road design and routing phase as well as decrease of vehicle’s age of suburban road transportation.
Keywords
Air Pollution
Road
Lorestan
Simulation
Pollutant Dispersion
Subjects
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Environmental Researches
Volume 15, Issue 29
Recerches
September 2024
Pages 3-20