SIMULATION OF AIR POLLUTANTS DISPERSION OF A CEMENT INDUSTRY AT KALLAR KAHAR USING DISPER MODELLING SYSTEM

Abstract

The present study was done to determine the pollutants that cause serious threat to the environment as well as have negative impacts on human health of the nearby community. DISPER 3.0 modelling system was used to simulate concentration of air pollutants including particulate matter, oxides of sulfur (SOx), Oxides of Nitrogen (NOx) and carbon monoxide (CO) from stack of a cement industry. Screen view software was used for measuring the pollutants’ concentration versus distance. WRPLOT was used to draw annual wind rose plot. Horiba ambient air quality analysers were used to monitor actual level of pollutants. The similarity index between predicted and actual results of PM, SOx, NOx and CO was 31%, 60%, 93% and 89.3% respectively. A significant correlation (r-value > 0.90) was observed for modeled and actual results. Model results concluded that SOx is the major pollutant deteriorating the health and environment of the surrounding community. Annual windrose diagram showed that community on south and east receives most of the pollution from the factory and area on the north side was the least affected one. On the other hand, actual data showed high concentration of PM but low concentration of SOx.