In forty six wells >150 m deep, from across the arsenic-polluted area of south-central Bangladesh, groundwater composition remained unchanged between 1998 and 2011. No evidence of deteriorating water quality was found in terms of arsenic, iron, manganese, boron, barium or salinity over this period of 13 years. These deep tubewells have achieved operating lives of more than 20 years with minimal institutional support.
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Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/stable-groundwater-quality-deep-aquifers-southern-bangladesh-case-against
[2] http://admin.indiaenvironmentportal.org.in/category/author/p-ravenscroft
[3] http://admin.indiaenvironmentportal.org.in/category/author/j-m-mcarthur
[4] http://admin.indiaenvironmentportal.org.in/category/author/m-hoque
[5] http://admin.indiaenvironmentportal.org.in/category/journal/science-total-environment-0
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-quality
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangladesh
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-asia
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wells
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arsenic
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tubewells
