Trivedi, Ratnesh and Chakraborty, M. K. and Kumar, Suresh (2008) Dust Generation and its Dispersion Due to Mining Activities in Durgapur open cast Coal Project of W.C.L. - A Case Study. Indian Mining & Engineering Journal , 47 (2). pp. 24-31. ISSN 0019-5944

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The increasing trend of opencast mining leads to release of a huge amount of air borne dust. These air borne dust particles, generally below 100 micron in size are environmentally nuisance and cause health hazards as an ill effect of mining activities. Therefore, dust generation and its dispersion has been found to be a major concern in opencast mining. This paper examines the different sources of dust generation due to coal mining activities and focuses on the quantification of dust emission and it’s dispersion for the Durgapur opencast coal Project (O.C.P) of Western Coalfields Limited (W.C.L.). The dust dispersion in horizontal as well as in vertical direction along the downwind direction has been estimated by the procedure suggested by Pasquill and Gifford keeping in view the pasquill stability class of prevalent meteorological conditions. the dust emission rates have been estimated for different point, area and line sources considering the background dust concentration. The ambient air quality data have been generated for selected stations and air quality modeling has been attempted using Fugitive Dust Model (FDM) developed by United States Environment Protection Agency (USEPA). With the help of FDM, dust concentration has been predicted at the source as well as at selected receptors at different distances along the down wind direction. The air quality Modeling using FDM reveals that the dust generated due to mining activities does not contribute to ambient air quality significantly in surrounding areas beyond 500 meters in normal meteorological conditions.

Item Type: Article
Subjects: Iron Ore Mining
Depositing User: Dr. Satyendra Kumar Singh
Date Deposited: 14 Dec 2011 07:05
Last Modified: 14 Dec 2011 07:05

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