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- W2912077079 abstract "Sukinda Valley, the 4th most polluted region in the world, present in the triangular sketch of Jajpur, Dhenkanal and Keonjhar district of Odisha state, contributes to around 97% of the total chromium deposits in India. Among the 17 mining leases in the valley, 13 are operational. Of the 13 operational mines, 11 are opencast and rest underground. The extensive production of chromite has led to the contamination of surface and ground water of the valley. Between the stable atomic states of chromium i.e., Cr(III) and Cr(VI), the later one is harmful and carcinogenic in nature. Around 2.3 million people are affected by the hexavalent chromium contaminated water in Sukinda Valley. Thus, we undertook a study to assess the concentration of Cr(VI) in and around the mining areas of Sukinda Valley. The present study provides a detailed information regarding the groundwater contamination due to extensive mining activity and mitigation measures from the hazards of Cr(VI). I collected 103 ground water samples from various water consumption sources viz., open wells, bore wells and tube wells within the mine lease area. The samples were analysed for Cr(VI) following diphenylcarbazide method. The Cr(VI) varied from 0.004mg/L to 0.652mg/L. All the collected samples contained Cr(VI). However, 15 samples exceeded the permissible limits of 0.05mg/L prescribed by Central Pollution Control Board (CPCB), India. The sustainable chromite mining in the valley is a major issue so far as the concentration of Cr(VI) is concerned. The production strategies in the mining need to be modified and mining activity below the ground water table should be done by following advanced and sustainable mining techniques. All mine leases in Sukinda Valley need to make a combined effort for sustainable mining and prevent ground water contamination by the carcinogenic Cr(VI)." @default.
- W2912077079 created "2019-02-21" @default.
- W2912077079 creator A5081579339 @default.
- W2912077079 date "2015-03-16" @default.
- W2912077079 modified "2023-09-24" @default.
- W2912077079 title "Assessment of Hexavalent Chromium in Ground Water of Chromite Mines at Sukinda Valley, Odisha, India" @default.
- W2912077079 hasPublicationYear "2015" @default.
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