Neeraj Parashar, has presented a case study on Coal Bed Methane Mining in Korba and Raigarh District of Chhattisgarh State, India to draw attention how EIA (Environmental Impact Assessment) Reports are rigged to seek approval for greenfield projects in Ministry of Environment and Forest.
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"IMPACT OF COAL BED METHANE MINING IN KORBA AND RAIGARH DISTRICT OF CHHATTISGARH" - Envirenmental Cause
1. Impact of Coal Bed Methane (CBM) Mining on Biodiversity & Climate In Korba & Raigarh District In Chhattisgarh Neeraj Parashar Prtyancha Education & Welfare Society, Bhopal (Research paper read in Feb, 2010, at International Conference on “Land-Water Resources, Biodiversity and Climate Change” at BSSS College, Bhopal)
16. Emission of methane (CH4) Methane emission from coal mining depends on the mining methods, depth of coal mining, coal quality and entrapped gas content in coal seams. An estimate of methane gas emission per tonne of coal production is given in Estimate of methane emission in coal mining [Sou: The climate change Agenda - An Indian Perspective - TERI - 1993] Degree I :A seam in which the inflammable gas in the general body of air at any place in the underground working exceed 0.1% and rate of emission of gas is less than 1 m3 per tonne of coal mined. Degree II :A seam in which the inflammable gas in the general body of air at any place in the underground working exceed 0.1% and rate of emission of gas is less than 1 m3 per tonne of coal mined or rate of emission of gas 1 m3 per tonne or more but less than 10 m3 per tonne of coal mined. Degree III : A seam in which the rate of emission of gas in more than 10 m3 per tonne of coal mined.
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22. Information provided in EIA Report on land use pattern 100 1.15 1.3 8 14.5 33.5 42.5 % of Study area in Executive Summary Total Water Bodies Village Pockets Dense Vegetation Agricultural Land Sparse Vegetation Open Space Land Use 100 5.47 river and 1.15 lake 6. 1.92 5. 4.47 4. 15.56 3. 33.63 2. 42.05 1. % of Study Area in EIA S. No.
31. Pumping from wells lowers the water table. This area is known as the cone of depression. Groundwater flow is diverted towards the well as it flows into the cone of depression.
34. Coal Bed Methane Mining – Soil Contamination The major source of water pollution in the coal mines is the carry over of the suspended solids in the drainage system of the mine sump water and storm water drainage. In some of the coal mines, acidic water is also found in the underground aquifers. In addition, waste water from coal preparation plant and mine water are other sources of water pollution.
41. Coal Bed Methane Mining Stalemate with Communities, Pressure groups and Vacuum of Govt. Policies
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Editor's Notes
Among the fossil fuels, coal has acquired the dubious distinction of being the dirtiest one. Such an attribute is on account of environmental damage and pollution problems caused during mining, processing, end use and wastes of coal. Land subsidence in underground mines, ugly scars of land in abandoned open cast mines, emissions of fly ash during combustion of coal and huge quantities of ash generated from boilers of coal based power plants and industrial houses are among the hosts of problems associated with handling and use of coal. Emission of carbon dioxide, an important component of “green house gases” (GHGs) and global warming, is yet another emerging concern linked with burning of coal. Air pollution in coal mines is mainly due to the fugitive emission of particulate matter and gases including methane, sulphur dioxide and oxides of nitrogen . High levels of suspended particulate matter increase respiratory diseases such as chronic bronchitis and asthma cases while gaseous emissions contribute towards global warming besides causing health hazards to the exposed population.