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Status of air pollution caused by coal washery projects in India

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Abstract

The importance of coal washeries in India is growing as local coals have a high ash content. At present, there are 23 coal washeries with an annual rated input of 45 Million Tonnes. During the various operations in washeries, large amounts of dusts and gaseous pollutants are generated. Four coal washery projects were surveyed to study their air pollution characteristics. Air monitoring stations were set up in local industrial, residential and sensitive areas and air pollution samples were collected along with micro-meteorological data. Diurnal variations of SPM, SO2 NOx and CO are discussed. SPM concentrations were found to exceed the permissible limits at all locations. SO2 and NOx were also found to exceed the permissible limit in residential and sensitive areas. It was observed that about 50% of the dust particles were less than 10 µ in diameter. Benzene soluble matter in SPM ranged from 45–62%.

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Authors and Affiliations

  1. Centre of Mining Environment, Indian School of Mines, 826 004, Dhanbad, India

    M. K. Ghose & S. K. Banerjee

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  1. M. K. Ghose
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  2. S. K. Banerjee
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Ghose, M.K., Banerjee, S.K. Status of air pollution caused by coal washery projects in India. Environ Monit Assess 38, 97–105 (1995). https://doi.org/10.1007/BF00547129

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  • DOI: https://doi.org/10.1007/BF00547129

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