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Spatiotemporal Variations in Water Quality of the Transboundary Shari-Goyain River, Bangladesh

Author

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  • Debasish Pandit

    (Department of Aquatic Resource Management, Sylhet Agricultural University, Sylhet 3100, Bangladesh
    Department of Oceanography, Khulna Agricultural University, Khulna 9100, Bangladesh)

  • Mohammad Mahfujul Haque

    (Department of Aquaculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh)

  • Ahmed Harun-Al-Rashid

    (Department of Aquatic Resource Management, Sylhet Agricultural University, Sylhet 3100, Bangladesh)

  • Bishwajit Sarker

    (Department of Agricultural Statistics, Sylhet Agricultural University, Sylhet 3100, Bangladesh)

  • Mohammad Amzad Hossain

    (Department of Fish Biology and Genetics, Sylhet Agricultural University, Sylhet 3100, Bangladesh)

  • Petra Schneider

    (Department for Water, Environment, Civil Engineering and Safety, University of Applied Sciences, Magdeburg-Stendal, Breitscheidstraße 2, D-39114 Magdeburg, Germany)

  • Mrityunjoy Kunda

    (Department of Aquatic Resource Management, Sylhet Agricultural University, Sylhet 3100, Bangladesh)

Abstract

This study aimed to investigate the seasonal and spatial variations in water quality parameters and determine the main contamination sources in the Shari-Goyain River, Bangladesh. Therefore, surface water was sampled monthly from six sampling sites, where six water quality parameters were evaluated. Data were analyzed by applying the Canadian Council of Ministers of the Environment (CCME) water quality index (WQI) and multivariate statistical methods. The results reveals that most of the examined water quality parameters crossed the acceptable range, and significant variations were observed spatiotemporally ( p < 0.05). Based on the CCME WQI value, the water quality of the river is classified as poor to marginal with a score range between 33.40 and 51.30. This range of values demonstrates that the river’s water quality is far from desirable for aquatic life and that it is being impacted and deteriorated by external drivers. Principal component analysis (PCA) retained two principal components (Factors 1 and 2), explaining about 79.17% of the total variance in the studied parameters and identified acidic pollution sources. Cluster analysis also reveals relative differences in water quality throughout sites and seasons, which supported the CCME WQI and PCA. Finally, Kruskal-Wallis one-way analysis of variance by ranks has identified coal mine drainage (CMD) as the main pollutant source for the Shari-Goyain River. In order to mitigate the CMD impact on land and water, different nature-based solutions are proposed, particularly passive mine water treatment approaches through constructed wetlands that could also mitigate the transboundary waters problem.

Suggested Citation

  • Debasish Pandit & Mohammad Mahfujul Haque & Ahmed Harun-Al-Rashid & Bishwajit Sarker & Mohammad Amzad Hossain & Petra Schneider & Mrityunjoy Kunda, 2023. "Spatiotemporal Variations in Water Quality of the Transboundary Shari-Goyain River, Bangladesh," Sustainability, MDPI, vol. 15(6), pages 1-21, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:5218-:d:1098067
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    References listed on IDEAS

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    1. Oei, Pao-Yu & Mendelevitch, Roman, 2019. "Prospects for steam coal exporters in the era of climate policies: a case study of Colombia," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 19(1), pages 73-91.
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