Arsenic contamination of groundwater in the Terai region of Nepal: an overview of health concerns and treatment options

Environment International
D PokhrelT Viraraghavan

Abstract

A review of published information on the arsenic contamination of groundwater in the Terai regions of Nepal showed that the source was mainly geogenic due to the dissolution of the arsenic-bearing minerals. Clinical observations of patients in the arsenic affected districts revealed chronic arsenic poisoning from drinking water. Half a million people inhabiting the region are believed to have been exposed to arsenic levels greater than 50 microg/L in their drinking water. Thirty-one percent of the population (3.5 million) in the region are estimated to have been exposed to arsenic levels between 10 and 50 microg/L. Iron assisted biosand filters currently distributed and in operation are a suitable alternative to mitigate the interim arsenic standard of 50 microg/L, as set by the Nepal Government. Arsenic biosand filters were also effective in removing bacteria and viruses from drinking water in laboratory and field tests. However, groundwater treatment targeting cluster communities in the Terai region is the sustainable way of mitigating the arsenic problem.

Citations

Jun 10, 2010·Journal of Community Health·Narendra MadenShreekrishna Shrestha
Jan 12, 2012·Biological Trace Element Research·Rajendra Prasad ParajuliChiho Watanabe
Mar 15, 2003·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Roshan R ShresthaKabita Shrestha
Mar 6, 2012·Water, Air, and Soil Pollution·Chicgoua NoubactepRichard Crane
Nov 1, 2015·The Science of the Total Environment·Esther Álvarez-AyusoPedro Villar-Alonso
May 10, 2011·Journal of Environmental Management·Levent AltaşMurat Kavurmaci
Nov 4, 2009·Environmental Pollution·Ajay K MannaParimal Pal
Nov 27, 2010·Environmental Pollution·Penradee ChanpiwatChantha Vongthavady
Apr 28, 2020·Maternal & Child Nutrition·Nicole D FordMaria Elena Jefferds
Jul 7, 2020·Public Health Nutrition·Naomi M SavilleHelen A Harris-Fry
Apr 12, 2019·International Journal of Environmental Research and Public Health·Chao WangDechao Yao
Jan 21, 2017·International Journal of Environmental Research and Public Health·Akina ShresthaGuéladio Cissé
Sep 2, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jyoti Prakash MaityJiin-Shuh Jean
Jun 10, 2021·Current Developments in Nutrition·Monica M PasqualinoKeith P West
Aug 4, 2018·Journal of Agricultural and Food Chemistry·Muhammad FarooqKadambot H M Siddique
Aug 25, 2021·Environmental Pollution·Md Shiblur RahamanSahoko Ichihara

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