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Pollution Characteristics of Microplastics in Soils in Southeastern Suburbs of Baoding City, China

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  • Chuan Du

    (State Key Laboratory of Coal Resources and Safe Mining, Beijing 100083, China
    College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Handong Liang

    (State Key Laboratory of Coal Resources and Safe Mining, Beijing 100083, China
    College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Zhanping Li

    (Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China)

  • Jie Gong

    (State Key Laboratory of Coal Resources and Safe Mining, Beijing 100083, China
    College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

Abstract

Microplastics (MPs) are emerging pollutants that exist in different environmental media. Because of their wide range and large potential environmental hazards, they have attracted widespread attention in recent years. At present, the research on MP is mostly concentrated on the water ecosystems, and the impact on soil ecosystems is less studied. In this study, 12 typical soil samples from southeastern suburbs of Baoding city were investigated and characterized by time-of-flight secondary ion mass spectrometry (TOF-SIMS) combined with mass high resolution mode and positive and negative ion imaging mode. Four types of MPs, poly (propylene) (PP), poly (vinyl chloride) (PVC), poly (ethylene terephthalate) (PET), and poly (amide 6) (PA6), were quickly identified, of which PET and PA6 accounted for the largest proportion of both up to 30.2%; the particle size of the obtained MPs ranged from 0 to 35 μm, of which the proportion of <10 μm MPs was more than 26.3%, while that of 20–25 μm and 25–35 μm MPs was relatively small (17.83% and 9.3%, respectively). Risk assessment results of the MP in the soil showed that the risk level of MPs in the non-ferrous metal industrial parks and in concentrated with small workshops areas is relatively high, and attention should be paid to such areas. In addition, the study provides a reference method for the investigation and risk assessment of MPs in terrestrial soils, coastal beaches, and sediments.

Suggested Citation

  • Chuan Du & Handong Liang & Zhanping Li & Jie Gong, 2020. "Pollution Characteristics of Microplastics in Soils in Southeastern Suburbs of Baoding City, China," IJERPH, MDPI, vol. 17(3), pages 1-12, January.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:3:p:845-:d:314080
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    Citations

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    Cited by:

    1. Raquel Pérez-Reverón & Sergio J. Álvarez-Méndez & Rebecca Magdalena Kropp & Adolfo Perdomo-González & Javier Hernández-Borges & Francisco J. Díaz-Peña, 2022. "Microplastics in Agricultural Systems: Analytical Methodologies and Effects on Soil Quality and Crop Yield," Agriculture, MDPI, vol. 12(8), pages 1-29, August.
    2. Jolanta Dąbrowska & Marcin Sobota & Małgorzata Świąder & Paweł Borowski & Andrzej Moryl & Radosław Stodolak & Ewa Kucharczak & Zofia Zięba & Jan K. Kazak, 2021. "Marine Waste—Sources, Fate, Risks, Challenges and Research Needs," IJERPH, MDPI, vol. 18(2), pages 1-17, January.

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