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Native Number2004221364 AQUALINE TitleAppropriate technology for removal of arsenic from drinking water of rural West Bengal Author(s)Deb, AK; Gupta, A; Bandyopadhyay, P; Biswas, RK; Roy, SK SourceEditor(s): Cotruvo, JA; Craun, GF; Hearne, N (eds) Safe Drinking Water in Small Systems: Technology, Operations and Economics. pp. 273-278. 1999. Conference: 1. Int. Symp. on Safe Drinking Water in Small Systems: Technology, Operations, and Economics, Washington, D.C. (USA), 1998 Published by: CRC Press LLC, 2000 Corporate Blvd., NW Boca Raton FL 33431 USA, [URL:http://www.crcjournals.com/home.asp] ISBN: 156670393X Other SourcesEnvironmental Engineering Abstracts Document TypeBook; Conference Document Number5318305 LanguageEnglish AbstractArsenic is a commonly occurring toxic meal in nature. Chronic poisoning is manifested by general muscular weakness, loss of appetite, and nausea, leading to inflammation of the mucous membranes in the eyes, nose, and larynx; skin lesions and neurological manifestations may also occur. Epidemiological studies, conducted with a Taiwanese population exposed to naturally elevated levels of arsenic in groundwater, have shown increased risk of cancer of internal organs, as well as skin cancer, associated with arsenic exposure. The Taiwanese study serves as the basis for the current U.S. Environmental Protection Agency (EPA) estimate of skin cancer risk for arsenic in drinking water. In 1993, the World Health Organization (WHO) recommended a provisional guideline value of 0.01 ppm based on both estimated health risks and the practical detection limit. The present Indian standard is 0.05 ppm of total arsenic. Arsenic contamination of natural origin in groundwater has been envisaged as a problem. Perhaps one of the most devastating health crises arising out of arsenic contamination of drinking water is quietly unfolding in the Lower Gangetic Plain covering eight districts of the State of West Bengal in India and 24 districts of Bangladesh. Approximately 3.93 million people stay in 61 affected blocks (i.e., smaller administrative units under the overall control of the district authorities) of West Bengal, where the total affected area covers approximately 34,000 square kilometers. The most frequent arsenic concentration values ranged from 0.3 to 0.7 ppm with occasional higher values, such as 1.86 and 5.0 ppm, reported from two places in West Bengal. Classification Code00004 Water Treatment Controlled TermsArsenic; Metals removal; Water treatment; Pollution (Water); Water supplies (Potable); Rural areas; Public- health; Standards (Water
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