title: Risk assessment due to intake of heavy metals through the ingestion of groundwater around two proposed uranium mining areas in Jharkhand, India.
abstract: Heavy metal pollution of water resources can be apprehended in East Singhbhum region which is a highly mineralised zone with extensive mining of copper, uranium and other minerals. Ten groundwater samples were collected from each site and the heavy metal analysis was done by atomic absorption spectrophotometer. Analysis of the results of the study reveals that the concentration of iron, manganese, zinc, lead, copper and nickel in groundwater of Bagjata mining area ranged 0.06-5.3 mg l(-1), 0.01-1.3 mg l(-1), 0.02-8.2 mg l(-1), 1.4-28.4 μg l(-1), 0.78-20.0 μg l(-1) and 1.05-20.1 μg l(-1), respectively. In case of Banduhurang mining area, the range was 0.04-2.93 mg l(-1), 0.02-1.1 mg l(-1), 0.01-4.68 mg l(-1), 1.04-33.21 μg l(-1), 1.24-18.7 μg l(-1) and 1.06-14.58 μg l(-1), respectively. The heavy metals were found to be below the drinking water standards (IS:10500 1993) except iron (0.3 mg l(-1)) and manganese (0.1 mg l(-1)). The hazard quotients of the heavy metals for drinking water were below 1 posing no threat due to intake of water to the people for both the areas.
authors.affiliation: Centre of Mining Environment, Department of Environmental Science and Engineering, Indian School of Mines, Dhanbad 826004, India. soma0307@gmail.com
authors.forename: Soma
authors.initials: S
authors.lastname: Giri
authors.forename: Mukesh K
authors.initials: MK
authors.lastname: Mahato
authors.forename: Gurdeep
authors.initials: G
authors.lastname: Singh
authors.forename: V N
authors.initials: VN
authors.lastname: Jha
mesh_terms: D060766:Drinking Water / Q000737:chemistry; D004781:Environmental Exposure / Q000032:analysis* / Q000706:statistics & numerical data; D060587:Groundwater / Q000737:chemistry*; D006801:Humans; D007194:India; D019216:Metals, Heavy / Q000032:analysis*; D008906:Mining / Q000706:statistics & numerical data; D018570:Risk Assessment; D014501:Uranium; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D060766:Drinking Water; D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D014501:Uranium