Chaulya, S.K. and Chakraborty, M. K. and Singh, R.S. (2001) AIR POLLUTION MODELLING FOR A PROPOSED LIMESTONE QUARRY. Water, Air and Soil Pollution , 126. pp. 171-191. ISSN 0049-6979

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Predictions of the air pollution impact of a proposed opencast limestone quarry have been made using meteorological data, information on various quarrying activities and their associated emission factors, baseline air quality and a validated model conditions. Results have indicated that the haul routes and ore processing plant are the major sources of suspended particulate matter (SPM) emissions. The emission rates of other air pollutants are insignificant. It has been predicted that 24-hr average SPM concentrations due to quarrying activities would be around 360 μgm−3 in the work zone and less than 130 μgm−3 beyond the site boundary. The total 24-hr average SPM concentration beyond the site boundary would be below 500 μgm−3, which is the national air quality standard for SPM in an industrial area. Therefore, the impact of opencast extraction on the local air quality would be acceptable. However, implementation of a green belt comprising of various tree species which will act as a dust attenuator of 40 m width around the site boundary, along with efficient control measures at source, would effectively mitigate and minimize pollution impacts from the quarry. The effectiveness of the green belt around the quarry site has been assessed and a sensitivity analysis has been carried out for different parameters, namely, tree height, width of green belt, and distance of receptor from the source. The technique for designing a green belt around a quarry site has also been described.

Item Type: Article
Uncontrolled Keywords: air pollution, dispersion modelling, green belt, opencast
Subjects: Instrumentation
Depositing User: Dr. Satyendra Kumar Singh
Date Deposited: 26 Nov 2011 04:52
Last Modified: 26 Nov 2011 04:52

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