IDEAS home Printed from https://ideas.repec.org/a/spr/endesu/v22y2020i8d10.1007_s10668-019-00549-4.html
   My bibliography  Save this article

Review of existing heavy metal contamination indices and development of an entropy-based improved indexing approach

Author

Listed:
  • Kunwar Raghvendra Singh

    (GLA University)

  • Rahul Dutta

    (Indian Institute of Technology Guwahati)

  • Ajay S. Kalamdhad

    (Indian Institute of Technology Guwahati)

  • Bimlesh Kumar

    (Indian Institute of Technology Guwahati)

Abstract

The present study aims at providing a novel technique for assessment of heavy metal contamination in a water body employing information entropy. For this purpose, 8 different locations, each from four tributaries of Brahmaputra river, Beki, Manas, Baralia and Pagladia, were chosen. Water samples from these tributaries were collected and analyzed for iron (Fe), manganese (Mn), lead (Pb), chromium (Cr), zinc (Zn) and copper (Cu) using atomic absorption spectroscopy (AAS). Information (Shannon) entropy was employed to assign weights to each heavy metal which was then coupled with the sub-indices to evaluate the entropy weighted heavy metal contamination index (EHCI). Spatial trend of EHCI values indicated that the water quality of Beki and Baralia river was either “excellent” (EHCI 100). Similar trend was observed for Pagladia river. A comparative approach was also carried out among all the heavy metal contamination indices to decide the efficacy of EHCI. The results indicated major conflicts between the indices at various sampling locations, and thus, it was evident from the water quality dataset that EHCI provided a better insight to the classification of water quality with respect to heavy metals. The study would thus be of significant aid in scientific research of stream restoration and water treatment strategies.

Suggested Citation

  • Kunwar Raghvendra Singh & Rahul Dutta & Ajay S. Kalamdhad & Bimlesh Kumar, 2020. "Review of existing heavy metal contamination indices and development of an entropy-based improved indexing approach," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(8), pages 7847-7864, December.
    • Handle: RePEc:spr:endesu:v:22:y:2020:i:8:d:10.1007_s10668-019-00549-4
    DOI: 10.1007/s10668-019-00549-4
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1007/s10668-019-00549-4
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1007/s10668-019-00549-4?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:endesu:v:22:y:2020:i:8:d:10.1007_s10668-019-00549-4. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.