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    Tubewell platform color: Assessment of a tool for rapid screening of arsenic and manganese in well water

    Access Status
    Fulltext not available
    Authors
    Bhattacharya, P.
    Biswas, A.
    Halder, D.
    Jacks, G.
    Nath, B.
    Biswas, A.
    Halder, D.
    Chatterjee, D.
    Mukherjee, Abhijit
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Bhattacharya, P. and Biswas, A. and Halder, D. and Jacks, G. and Nath, B. and Biswas, A. and Halder, D. et al. 2012. Tubewell platform color: Assessment of a tool for rapid screening of arsenic and manganese in well water, pp. 515-518.
    Source Title
    Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment
    ISBN
    9780415637633
    URI
    http://hdl.handle.net/20.500.11937/67295
    Collection
    • Curtin Research Publications
    Abstract

    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 µg/L). At this standard the respective efficiency, sensitivity and specificity of the tool are 65, 85 and 59%. If WHO drinking water guideline (10 µg/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 µg/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. © 2012 Taylor & Francis Group.

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