Simulation Effect of Stability Classes on SO 2 Concentration in Daura Refinery and Neighboring Regions

Abstract

Sulfur dioxide (SO 2 ) is one of the most dangerous pollutants in the air. Most of the gas isemitted from industrial sources, mainly steam power plants, which account for more than 50%of it. Its consider toxic gas that cause irritating respiratory effects in this study the effect of airpollution around Durra refinery and its neighborhood. Where adopted in the study. the data ofgaseous pollutants in the air (sulfur dioxide) were analyzed in the area south of Baghdad atJanuary month that is have high frequent of stability condition . The data provided by theMinistry of Oil / Baghdad for 2017. In addition, the effect of air stability classes on thequantities of this pollutant. The results of the study showed that the in atmospheric stabilityclass (F) concentrations of sulfur oxides is (54442mg/m 3 ) at distance 100m and (5127 mg/m 3 )at distance 10000m were the highest in the region. Overall results show that the concentrationrates reached relatively high values during the stable and very stable atmospheric stability andthat the values for the month of January for sulfur dioxide were found to be high and areinversely proportional to the speed of the wind.