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Groundwater Vulnerability and Groundwater Contamination Risk in Karst Area of Southwest China

Author

Listed:
  • Jingchao Liu

    (College of Water Science, Beijing Normal University, Beijing 100091, China)

  • Jin Wu

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

  • Shaowei Rong

    (Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China)

  • Yanna Xiong

    (Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China)

  • Yanguo Teng

    (College of Water Science, Beijing Normal University, Beijing 100091, China)

Abstract

Groundwater pollution in karst areas is often the result of the interaction of hydrogeological characteristics and human activities. In this study, a chimeric evaluation system of groundwater vulnerability and pollution load was constructed, and the groundwater contamination risk was intuitively displayed using a risk map. The study area is located in Qiannan, a typical karst area in Southwest China. Groundwater vulnerability was mainly calculated using the PLEIK model. Pollution source load evaluation was evaluated using the classification method. The groundwater pollution status was evaluated by the CCME WQI method. The results show that the groundwater vulnerability in the research area was mainly at a medium level. The areas with high pollution load values were mainly distributed in industrial parks and other pollution-source-gathering areas. The results of the water quality evaluation show that the groundwater quality in the study area was generally good. However, the impact of some pollution sources on the surrounding groundwater still cannot be ignored. The results reveal the risk level of groundwater pollution in typical karst areas and provide theoretical support for regional groundwater protection.

Suggested Citation

  • Jingchao Liu & Jin Wu & Shaowei Rong & Yanna Xiong & Yanguo Teng, 2022. "Groundwater Vulnerability and Groundwater Contamination Risk in Karst Area of Southwest China," Sustainability, MDPI, vol. 14(21), pages 1-13, November.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:21:p:14483-:d:963246
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    References listed on IDEAS

    as
    1. Amin, M.G. Mostofa & Veith, Tamie L. & Collick, Amy S. & Karsten, Heather D. & Buda, Anthony R., 2017. "Simulating hydrological and nonpoint source pollution processes in a karst watershed: A variable source area hydrology model evaluation," Agricultural Water Management, Elsevier, vol. 180(PB), pages 212-223.
    2. Yanna Xiong & Jingchao Liu & Wenchao Yuan & Weijiang Liu & Shaobing Ma & Zhiyu Wang & Tongtong Li & Yanwei Wang & Jin Wu, 2022. "Groundwater Contamination Risk Assessment Based on Groundwater Vulnerability and Pollution Loading: A Case Study of Typical Karst Areas in China," Sustainability, MDPI, vol. 14(16), pages 1-16, August.
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