Mercury in Soil around a 2,600 MW Coal-Fired Super Thermal Power Plant in India and Human Health Risk Assessment

Pramanik, Supriti and Shalini, Mustala and Qureshi, Asif (2021) Mercury in Soil around a 2,600 MW Coal-Fired Super Thermal Power Plant in India and Human Health Risk Assessment. Journal of Hazardous, Toxic, and Radioactive Waste, 25 (3). ISSN 2153-5493

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Coal-fired power plants are major emitters of mercury, a toxic element of global concern, to the atmosphere. Although more than 100 coal-fired power plants exist in India, only a limited number of studies have assessed mercury levels in the soil surrounding these power plants. Here, we report the concentrations of mercury in the soil around a 2,600 MW coal-fired "super thermal power plant"in southern India and conduct a human health risk assessment for exposure to soil mercury. It was found that concentrations of mercury in soil were less than or similar to those observed in India or other parts of the world (2.4-40.2 μg/kg). Assessment of soil quality indexes, contamination factors (CFs), and geoaccumulation indexes (IGEO) suggests soil to be enriched in mercury compared with a local background (CF = 1-9, IGEO < 0 to >3). Concentrations of mercury in soil were inversely correlated with the distance from the power plant, but intermediate increases were also observed, owing to the interfering influences of an opencast coal mine, ash pond, or urban area. Human health risk assessment indicates that infants are at higher risk than adults, but the overall health hazard remained low (hazard index <0.05).

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IITH Creators:
IITH CreatorsORCiD
Pramanik, SupritUNSPECIFIED
Shalini, MustalaUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Coal-fired power plant; Contamination factors; Geoaccumulation; Human health risk assessment; Opencast Coal Mine; Quality indices; Thermal power plants; Toxic elements;Coal; Coal fueled furnaces; Coal industry; Coal mines; Fossil fuel power plants; Health; Health hazards; Health risks; Risk assessment; Soil pollution; Soils; Thermoelectric power plants
Subjects: Civil Engineering
Divisions: Department of Civil Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 31 Jul 2021 04:41
Last Modified: 31 Jul 2021 04:41
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