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Year : 2016  |  Volume : 2  |  Issue : 2  |  Page : 77-82

Dispersion Modeling of Total Suspended Particles (TSP) Emitted from a Steel Plant at Different Time Scales Using AERMOD View

Department of Environmental Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

Correspondence Address:
Maryam F Abari
Department of Environmental Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2423-7752.191399

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Introduction: One of the main challenges of this modern life is air pollution and industry is the major producer of pollutions in the environment. In this regard, air quality monitoring and assessing exceedance of air quality standards around an area or industrial plant can be a useful method in order to control and establish limits for pollutant sources. Air dispersion models could be the simplest and the most effective way for monitoring and evaluating the pollutant concentrations as well as the impact of each source on the air quality of a given area, and also can be applied for adopting management approaches and appropriate strategies to prevent and reduce air pollution. Aim: In this study, by applying AERMOD developed by U.S. Environmental Protection Agency (EPA) and recommended as one of the preferred and advanced models, dispersion of total suspended particles (TSP) emitted from electric arc furnace chimney of a steel plant in Isfahan was simulated. Materials and Methods: In this study, AERMOD View is run within an area with 30 km × 30 km extent (regional scale) and 2000 m network distance (961 grid points) for 1, 3, 8, 12, 24-h time averages and monthly and annual periods, and then maximum ground level concentrations (GLC) compared with EPA and Iran clean air standards to assess the exceedance of this pollutant. Results: Results revealed that simulated concentrations for 24-h average and annual period are far below the threshold limits of both standards. Moreover, the highest concentrations of TSP took place in a different direction with prevailing winds where there are no inhabitants. However, the cumulative impact of such activities must be considered. This study also highlights the effectiveness of bag filter systems in reducing particle matter emissions from industrial units.

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