Targeting arsenic-safe aquifers for drinking water supplies
2010 (English)In: Environmental Geochemistry and Health, ISSN 0269-4042, E-ISSN 1573-2983, Vol. 32, no 4, 307-315 p.Article in journal (Refereed) Published
At present, 70 countries worldwide are affected by groundwater contamination by arsenic (As) released from predominantly geogenic sources. Consequently, the As problem is becoming a global issue. The option to target As-safe aquifers, which uses geological, geochemical, hydrogeological, morphological and climatic similarities to delimit As-safe aquifers, appears as a sustainable mitigation option. Two pilot areas, Meghna Flood Plain in Matlab Upazila, representative of Bengal Delta in Bangladesh, and Rio Dulce Alluvial Cone, representing a typical aquifer setting in the Chaco-Pampean Plain in Argentina groundwater As occurrence, were compared. In rural Bangladesh, As removal techniques have been provided to the population, but with low social acceptance. In contrast, "targeting As-safe aquifers" was socially accepted in Bangladesh, where sediment color could be used to identify As-safe aquifer zones and to install safe wells. The investigation in Argentina is more complex because of very different conditions and sources of As. Targeting As-safe aquifers could be a sustainable option for many rural areas and isolated peri-urban areas.
Place, publisher, year, edition, pages
2010. Vol. 32, no 4, 307-315 p.
Safe aquifers, Arsenic, Mitigation option, Drinking water, Groundwater
IdentifiersURN: urn:nbn:se:kth:diva-27223DOI: 10.1007/s10653-010-9308-8ISI: 000279655700011ScopusID: 2-s2.0-77954459334OAI: oai:DiVA.org:kth-27223DiVA: diva2:381664
QC 201012282010-12-282010-12-092011-11-29Bibliographically approved