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Comprehensive Assessment of Water Quality and Pollution Source Apportionment in Wuliangsuhai Lake, Inner Mongolia, China

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  • Rui Shi

    (State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
    Environmental Information Monitoring Center of Bayannur, Bayannur 015000, China)

  • Jixin Zhao

    (Institute of Environmental Science of Bayannur, Bayannur 015000, China)

  • Wei Shi

    (Institute of Loess Plateau, Shanxi University, Taiyuan 030006, China)

  • Shuai Song

    (State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Chenchen Wang

    (State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

Abstract

Water quality is a key indicator of human health. Wuliangsuhai Lake plays an important role in maintaining the ecological balance of the region, protecting the local species diversity and maintaining agricultural development. However, it is also facing a greater risk of water quality deterioration. The 24 water quality factors that this study focused on were analyzed in water samples collected during the irrigation period and non-irrigation period from 19 different sites in Wuliangsuhai Lake, Inner Mongolia, China. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) were conducted to evaluate complex water quality data and to explore the sources of pollution. The results showed that, during the irrigation period, sites in the middle part of the lake (clusters 1 and 3) had higher pollution levels due to receiving most of the agricultural and some industrial wastewater from the Hetao irrigation area. During the non-irrigation period, the distribution of the comprehensive pollution index was the opposite of that seen during the irrigation period, and the degree of pollutant index was reduced significantly. Thus, run-off from the Hetao irrigation area is likely to be the main source of pollution.

Suggested Citation

  • Rui Shi & Jixin Zhao & Wei Shi & Shuai Song & Chenchen Wang, 2020. "Comprehensive Assessment of Water Quality and Pollution Source Apportionment in Wuliangsuhai Lake, Inner Mongolia, China," IJERPH, MDPI, vol. 17(14), pages 1-12, July.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:14:p:5054-:d:384288
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    References listed on IDEAS

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    1. Shuai Song & Yuanjie Li & Lin Li & Maoyong Liu & Jing Li & Liang Wang & Chao Su, 2018. "Arsenic and Heavy Metal Accumulation and Risk Assessment in Soils around Mining Areas: The Urad Houqi Area in Arid Northwest China as an Example," IJERPH, MDPI, vol. 15(11), pages 1-17, October.
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    Cited by:

    1. Juan G. Loaiza & Jesús Gabriel Rangel-Peraza & Antonio Jesús Sanhouse-García & Sergio Alberto Monjardín-Armenta & Zuriel Dathan Mora-Félix & Yaneth A. Bustos-Terrones, 2021. "Assessment of Water Quality in A Tropical Reservoir in Mexico: Seasonal, Spatial and Multivariable Analysis," IJERPH, MDPI, vol. 18(14), pages 1-20, July.

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