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Tubewell platform color: Assessment of a tool for rapid screening of arsenic and manganese in well water
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630). (KTH-International Groundwater Arsenic Research Group)ORCID iD: 0000-0003-4350-9950
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630). (KTH-International Groundwater Arsenic Research Group)
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630). (KTH-International Groundwater Arsenic Research Group)
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630). (KTH-International Groundwater Arsenic Research Group)
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2012 (English)In: Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment, Taylor & Francis Group, 2012, 515-518 p.Conference paper, Published paper (Refereed)
Abstract [en]

This study attempts to make a statistical comparison between Tubewell (TW) platform color and the level of Arsenic (As) and Manganese (Mn) concentration in groundwater abstracted from a set of 423 Tubewells (TWs) in Chakdaha Block of Nadia District, West Bengal, India to validate platform color as a screening tool for both As and Mn in groundwater. The results indicate that water extracted from TWs with black colored platform in 93% cases was safe for As while water extracted from TWs with red colored platform is contaminated with As with 38% certainty, compared to drinking water standard of India (50 ÎŒg/L). At this standard the respective efficiency, sensitivity and specificity of the tool are 65, 85 and 59%. If WHO drinking water guideline (10 ÎŒg/L) is considered, the certainty increases to 73% and 84% respectively for black and red colored platform with respective efficiency, sensitivity and specificity values of 79, 77 and 81%. Furthermore, the black colored platform with 78% certainty indicates well water is enriched with Manganese (Mn), while red colored platform indicates water is low in Mn with 64% certainty evaluated against Indian national standard of 300 ÎŒg/L. This study demonstrates that platform color can be potentially used as an initial screening tool for As and Mn, to assess the safe water acess for drinking purposes.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2012. 515-518 p.
Keyword [en]
Drinking water standards, National standard, Rapid screening, Safe water, Screening tool, Sensitivity and specificity, Statistical comparisons, Tubewells, Well water, West Bengal, India
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-101362Scopus ID: 2-s2.0-84864881236ISBN: 978-041563763-3 (print)OAI: oai:DiVA.org:kth-101362DiVA: diva2:547467
Conference
4th International Congress on Arsenic in the Environment, As 2012; Cairns, QLD; Australia; 22 July 2012 through 27 July 2012
Note

QC 20120828

Available from: 2012-08-28 Created: 2012-08-27 Last updated: 2013-10-15Bibliographically approved

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Bhattacharya, Prosun

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