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Arsenic contamination of groundwater:A global synopsis with focus on the Indian Peninsula

Geoscience Frontiers 2021年第3期12卷 1-18页

作者： E.Shaji M.Santosh K.v.Sarath Pranav Prakash v.deepchand B.v.Divya Department of Geology University of KeralaKariavattom CampusTrivandrum 695581India School of Earth Sciences and Resources China University of Geosciences(Beijing)29 Xueyuan RoadBeijing 100083China Department of Earth Science University of AdelaideAdelaideSA 5005Australia

More than 2.5 billion people on the globe rely on groundwater for drinking and providing high-quality drinking water has become one of the major challenges of human *** groundwater is considered as safe,high concentrations of heavy metals like arsenic(As)can pose potential human health concerns and *** this paper,we present an overview of the current scenario of arsenic contamination of groundwater in various countries across the globe with an emphasis on the Indian *** several newly affected regions reported during the last decade,a significant increase has been observed in the global scenario of arsenic *** is estimated that nearly 108 countries are affected by arsenic contamination in groundwater with concentration beyond maximum permissible limit of 10 ppb recommended by the World Health *** highest among these are from Asia(32)and Europe(31),followed by regions like Africa(20),North America(11),South America(9)and Australia(4).More than 230 million people worldwide,which include 180 million from Asia,are at risk of arsenic *** Asian countries,Bangladesh,India,Pakistan,China,Nepal,vietnam,Burma,Thailand and Cambodia,are the most *** India,20 states and 4 Union Territories have so far been affected by arsenic contamination in *** attempt to evaluate the correlation between arsenic poisoning and aquifer type shows that the groundwater extracted from unconsolidated sedimentary aquifers,particularly those which are located within the younger orogenic belts of the world,are the worst *** than 90%of arsenic pollution is inferred to be *** infer that alluvial sediments are the major source for arsenic contamination in groundwater and we postulate a strong relation with plate tectonic processes,mountain building,erosion and *** consumption of arsenic-contaminated groundwater results in severe health issues like skin,lung,kidney and bladder ca

关键词： Arsenic contamination Groundwater Indo-Gangetic alluvium Orogenic belts Global tectonics Asia

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