Seminar Details

Seminar Title
::
Environmental Management of Koira Mining Area through Cumulative Impact Assessment Study
Seminar Type
::
Defence Seminar
Department
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Mining Engineering
Speaker Type
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Student
Speaker Name
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Simanchala Dash (Roll no. 508MN901)
Date  &  Time
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26 Feb 2021  11:00 AM
Venue
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Seminar Hall (Department of Mining Engg.) & MS Team (Code: yqv45pz)
Contact
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Prof. H. B. Sahu, PH: 7978856942
Abstract
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Cumulative environmental impact assessment is necessary, particularly for mining projects, for the evaluation of the complex nature of environmental impact to ensure sustainable development. Koira mining region, an iron and manganese ore rich zone in Sundargarh district of Odisha was selected for the current study. Though environmental impact assessment studies have been done for individual mines, no study to evaluate the cumulative impact has been carried out in the region. In the current assessment, the air quality index for the Koira mining area was found to be satisfactory for most of the days. However, on a few occasions, it was found to be moderately polluted. The poor air quality index may be attributed to respirable particulate matter and diesel emissions. The higher iron content in surface water obtained during the monsoon can be attributed to surface run off from adjoining mines and over burden dumps. The observed values of pH in post monsoon season suggest the slightly acidic nature of the ground water. The high iron content in ground water at some location can be attributed to the rock formation in the region; and groundwater infiltration from iron ore mines and overburdens. The soil quality was also found to be acidic at the sampling sites. In the present study, 3.1% of the mining workers had hearing loss, 14% had refraction error, 1% had defective colour vision; which points out the need of initial medical examination and suitable work allocation of workers. The change in LULC was found to be less than 2%. For the purpose of this study, an attempt was made to determine the cumulative environmental impact index (CEII) for a cluster of iron and manganese mines in Koira mining area, drawing inference from the framework prescribed by CPCB. Additional components for community health and the impact of land use and land cover were incorporated in the original framework of CEPI-2016. The CEII determined by following the modified method was found to be 56, which indicate that, the area is not critically/or severely polluted. However, it may be noted that it is approaching the severely polluted criteria. Thus, it is high time that adequate attention may be given to bring the index value further down. MS Team meeting link: https://teams.microsoft.com/l/team/19%3a98a325df2d3c4739a288f81eb52f530f%40thread.tacv2/conversations?groupId=f78d67ae-5099-4d34-bad8-81fa5a71c045&tenantId=bad12864-913e-4b99-87d6-b8d2ad459e27