Title: Application of Gaussian dispersion model for the assessment of air pollutants from a steel plant in the City of Bokaro, Jharkhand, India
Authors: Sampatrao D. Manjare; Kavita Vithal Patil
Addresses: Department of Chemical Engineering, BITS Pilani, K.K. Birla Goa Campus, Zuarinagar, Goa, 403726, India Fax: +91-8322557030 ' Coastal Ecology and Marine Resources Centre, The Energy and Resources Institute, Goa, 403202, India
Abstract: To protect human health and environment from increased air pollution, it is essential to forecast the air pollution in populated areas, which helps in the identification and implementation of preventive as well as reactive control techniques. Air dispersion models predict the concentration profile of pollutants from sources to receptors. This paper presents a case study on the dispersion of air pollutants emitted from multiple sources (stacks) in the Bokaro Steel Plant, Bokaro Steel City, Jharkhand, India to quantify the contribution of various pollution sources to the local air pollution from the said steel plant. In this study, the pollutant concentration profiles at (x, y, z) due to emissions from three major sources in the Bokaro Steel Plant were predicted using emissions data obtained from the Gas Utility Department, Bokaro Steel Limited. The effect of wind velocity and stability class on the concentration profiles of major air pollutants viz., particulates, NOx, and SOx for the single source as well as multiple sources were studied. From the results, it is revealed that both wind velocity and stability class have a significant impact on the dispersion of air pollutants.
Keywords: atmospheric dispersion; contaminant transport; plume; Gaussian dispersion model; meteorological condition; particulates; India.
International Journal of Environment and Waste Management, 2022 Vol.30 No.2, pp.125 - 139
Received: 20 Jan 2020
Accepted: 23 Jun 2020
Published online: 12 Jan 2023 *