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Sökning: onr:"swepub:oai:DiVA.org:kth-27223" > Targeting arsenic-s...

Targeting arsenic-safe aquifers for drinking water supplies

Bundschuh, Jochen (författare)
KTH,Mark- och vattenteknik (flyttat 20130630)
Litter, Marta I. (författare)
Bhattacharya, Prosun (författare)
KTH,Mark- och vattenteknik (flyttat 20130630)
 (creator_code:org_t)
2010
2010
Engelska.
Ingår i: Environmental Geochemistry and Health. - 0269-4042 .- 1573-2983. ; 32:4, s. 307-315
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • 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.

Ämnesord

NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences (hsv//eng)

Nyckelord

Safe aquifers
Arsenic
Mitigation option
Drinking water
Groundwater
Environmental chemistry
Miljökemi

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