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Heavy Metal Pollution and Its Prior Pollution Source Identification in Agricultural Soil: A Case Study in the Qianguo Irrigation District, Northeast China

Author

Listed:
  • Weiwei Wang

    (School of Environment, Northeast Normal University, Changchun 130117, China
    These authors contributed equally to this work.)

  • Nan Lu

    (School of Environment, Northeast Normal University, Changchun 130117, China
    These authors contributed equally to this work.)

  • He Pan

    (School of Resources and Environment, Jilin Agricultural University, Changchun 130118, China)

  • Zirui Wang

    (School of Environment, Northeast Normal University, Changchun 130117, China)

  • Xu Han

    (School of Environment, Northeast Normal University, Changchun 130117, China)

  • Zhichao Zhu

    (School of Environment, Northeast Normal University, Changchun 130117, China)

  • Jiunian Guan

    (School of Environment, Northeast Normal University, Changchun 130117, China)

Abstract

Heavy metals are the primary pollutants in agricultural soil and have hindered the sustainable development of agriculture. To control heavy metal pollution, it is essential to identify the pollution sources, particularly the prior source, in agricultural soils. In the current study, Qianguo Irrigation District, a typical agricultural region in Northeast China, was selected to be investigated for the source apportionment of soil heavy metals and identify the prior pollution source. The results showed that the study area was at a moderate pollution level with considerable ecological risk, while Hg and Cd were the main pollutants. Human-health risk assessment indicated that the non-carcinogenic risk for all populations was acceptable (HI < 1), and the carcinogenic risk was not negligible (10 −6 < TCR < 10 −4 ). The main pollution sources were concluded to be of lithogenic origin (35.5%), livestock manure (25.4%), coal combustion (21.5%), and chemical fertilizers (17.7%). Coal combustion was identified as the prior pollution source, accounting for 47.69% of the RI contribution. This study can provide scientific support for environmental management and pollution control of soil heavy metals in agricultural regions.

Suggested Citation

  • Weiwei Wang & Nan Lu & He Pan & Zirui Wang & Xu Han & Zhichao Zhu & Jiunian Guan, 2022. "Heavy Metal Pollution and Its Prior Pollution Source Identification in Agricultural Soil: A Case Study in the Qianguo Irrigation District, Northeast China," Sustainability, MDPI, vol. 14(8), pages 1-16, April.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:8:p:4494-:d:790508
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    References listed on IDEAS

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    1. Yanhong Li & Huifen Kuang & Chunhua Hu & Gang Ge, 2021. "Source Apportionment of Heavy Metal Pollution in Agricultural Soils around the Poyang Lake Region Using UNMIX Model," Sustainability, MDPI, vol. 13(9), pages 1-12, May.
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    Cited by:

    1. Bin Zhao & Wei Han & Tingjian Ma & Gang Gao & Ling Ji, 2022. "Reservoir Quality and Its Control Factors of Complex Fault Block Reservoir in Continental Faulted Basin, Case Study in the Wang Guantun Area, Bohai Bay Basin, China," Energies, MDPI, vol. 15(16), pages 1-16, August.

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