Groundwater quality contrasts between Upper and Lower Dupi Tila Aquifers in Megacity Dhaka, Bangladesh
2011 (English)In: Groundwater quality contrasts between Upper and Lower Dupi Tila Aquifers in Megacity Dhaka, Bangladesh: Proc. 7th International Groundwater Quality Conference, 2011, 71-74 p.Conference paper (Refereed)
Dhaka is one of the fastest growing megacities of the world and is set to become the third largest by 2025. Currently about 86% of the municipal water supply comes from over 500 wells drilled in the Dupi Tila aquifers underlying the city. The Upper Dupi Tila aquifer (UDTA) is overexploited and a large part has been dewatered; abstractions from the lower Dupi Tila started only recently. Results of water analysis and EC surveys have been used to decipher the variations in groundwater quality in the UDTA and LDTA. EC surveys reveal a systematic deterioration of water quality in the vicinity of the Buriganga River in southeast Dhaka. The UDTA is more widely affected by anthropogenic processes than the LDTA, which still largely exhibits its intrinsic water quality characteristics. Regular monitoring and proper management practices are essential to protect the quality of this precarious resource.
Place, publisher, year, edition, pages
2011. 71-74 p.
, IAHS-AISH Publication, ISSN 0144-7815 ; 342
Dhaka megacity, urban, Dupi Tila aquifer, anthropogenic, pollution
Geotechnical Engineering Environmental Sciences
IdentifiersURN: urn:nbn:se:kth:diva-87312ISI: 000298021100016ScopusID: 2-s2.0-84860566857ISBN: 978-190716116-2OAI: oai:DiVA.org:kth-87312DiVA: diva2:501615
7th International Groundwater Quality Conference, Zurich, Switzerland, 13-18 June 2010
QC 201204232012-02-142012-02-142014-09-08Bibliographically approved