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Arsenic and manganese in shallow tubewells: validation of platform color as a screening tool in Bangladesh
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. Sanitary Engineering Section, Department of Water Management, Delft University of Technology, Stevinweg 1, 2628 CN, Delft, The Netherlands. (KTH-International Groundwater Arsenic Research Group)
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. (KTH-International Groundwater Arsenic Research Group)ORCID iD: 0000-0003-4350-9950
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India. (KTH-International Groundwater Arsenic Research Group)
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. NGO Forum for Drinking Water Supply and Sanitation, Block-E, Lalmatia, Dhaka 1207, Bangladesh. (KTH-International Groundwater Arsenic Research Group)
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2018 (English)In: Groundwater for Sustainable Development, ISSN 2352-801X, Vol. 6, p. 181-188Article in journal (Refereed) Published
Abstract [en]

This study aimed to evaluate the potential of handpump tubewell platform color as a low-cost, quick and convenient screening tool for As and Mn in drinking water tubewells. For this study, groundwater samples and corresponding tubewell platform pictures were collected from 272 shallow tubewells in Matlab Upazila of South-Eastern Bangladesh. The result shows that arsenic concentration within the surveyed (n = 272) tubewells, 99% (n = 269) exceeded the World Health Organization (WHO) guideline value of 10 µg/L, and 98% (n = 267) exceeded the Bangladesh drinking water standards (BDWS) of 50 µg/L. In relation to the platform color concept, within 233 (total 272) red colored platform tubewells, 230 (99%) exceeded the WHO guideline value of 10 µg/L, and 229 (98%) tubewells exceeded BDWS of 50 µg/L. This result shows a strong correlation between the development of red color stain on tubewell platform and As concentrations in the corresponding tubewell water. This study suggests that red-colored platform can be used for primary identification of tubewells with an elevated level of As and thus could prioritize sustainable As mitigation management in developing countries where water comes from reductive shallow aquifers. This study did not confirm the potential for Mn screening, as red discoloration by Fe oxides was found to mask the black discoloration of Mn oxides. It is recommended to further investigate this screening tool in regions with a higher well-to-well variability of As contaminations, as in the presented study As was found >10ug/L in 99% of the tubewells.

Place, publisher, year, edition, pages
Elsevier B.V. , 2018. Vol. 6, p. 181-188
Keywords [en]
Arsenic, Groundwater, Manganese, Mitigation, Screening, Tubewell platform color
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-227427DOI: 10.1016/j.gsd.2017.11.008Scopus ID: 2-s2.0-85041571981OAI: oai:DiVA.org:kth-227427DiVA, id: diva2:1210586
Note

Export Date: 9 May 2018; Article; Correspondence Address: Annaduzzaman, M.; KTH-International Groundwater Arsenic Research Group, Department of Sustainable Development, Environmental Science and Engineering, KTH- Royal Institute of Technology, Teknikringen 10B, Sweden; email: M.Annaduzzaman@tudelft.nl; Funding details: Sida, Styrelsen för Internationellt Utvecklingssamarbete; Funding details: IA, Office of International Affairs; Funding details: 73000854, Sidaction; Funding details: Geology Foundation, Geology Foundation, University of Texas at Austin; Funding details: DAAD London, German Academic Exchange Service London; Funding text: This work financed by Swedish International Development Cooperation Agency (Sida) grant on project “Sustainable Arsenic Mitigation (SASMIT)” (Sida Contributions 73000854 ). The authors thank Mohammad Jahid Alam, Syed Golam Sarwar, Golam Kibria, Mohammad Rofiuddin Robi, Ratnajit Saha, Md. Ileash, Alam, Awlad, Omar Faruk and Chan Mia for their assistance during the field work in Matlab, Ann Fylkner at the Department of Land and Water Resources Engineering, KTH as well as Magnus Mörth at the Department of Geology and Geochemistry at Stockholm University for analytical work. MA would like to thank the International Programme Office (IPK), Sweden and Danielle Edvardsson of the KTH International Office for the Linnaeus – Palme Academic Exchange Scholarship. QC 20180529

Available from: 2018-05-29 Created: 2018-05-29 Last updated: 2018-05-29Bibliographically approved

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