POLLUTION SITUATION AND RISK ASSESSMENT OF MICROPLASTICS IN AGRICULTURAL SOIL IN WUHAN

HUANG Xi; ZHANG Qiaoqiao; YAN Jin; MA Jingjing; LUO Zejiao

doi:10.13205/j.hjgc.202406016

Volume 42 Issue 6

Jun. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(6): 136-145

HUANG Xi, ZHANG Qiaoqiao, YAN Jin, MA Jingjing, LUO Zejiao. POLLUTION SITUATION AND RISK ASSESSMENT OF MICROPLASTICS IN AGRICULTURAL SOIL IN WUHAN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(6): 136-145. doi: 10.13205/j.hjgc.202406016

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HUANG Xi, ZHANG Qiaoqiao, YAN Jin, MA Jingjing, LUO Zejiao. POLLUTION SITUATION AND RISK ASSESSMENT OF MICROPLASTICS IN AGRICULTURAL SOIL IN WUHAN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(6): 136-145. doi: 10.13205/j.hjgc.202406016

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POLLUTION SITUATION AND RISK ASSESSMENT OF MICROPLASTICS IN AGRICULTURAL SOIL IN WUHAN

doi: 10.13205/j.hjgc.202406016

Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, China University of Geosciences(Wuhan), Wuhan 430078, China

Received Date: 2023-07-24
Available Online: 2024-07-11

Abstract

Abstract

Soil serves as a significant sink for plastic waste and microplastics. Investigating the pollution status and ecological risks of microplastics in agricultural soil can provide fundamental data and theoretical support for the management of soil microplastic pollution. In this study, soil samples were collected from greenhouse vegetable fields in different regions of Wuhan. Microplastics in the soil were quantitatively and qualitatively analyzed using the Nile Red fluorescence staining method and Raman spectroscopy. The results revealed an average abundance of microplastics in the cultivated layer soil of vegetable fields in Wuhan to be (2938.9±1637.5) particles per kilogram of dry weight (n/kg dw), predominantly in the form of fibers and fragments. Polyethylene (PE) and polypropylene (PP) were identified as the main polymer types, exhibiting a significant positive correlation. Microplastics at different depths in the sampling areas showed similarities in morphology and types. The risk assessment using the pollution load index method indicated a risk level of Class I for all sampled regions. However, the risk assessment using the risk index and potential risk index methods revealed higher risks at sampling points where polyvinyl chloride (PVC) was detected, suggesting the need for standardized models in the future to assess the ecological risks of microplastics.
- microplastics,
- vegetable soil,
- pollution situation,
- risk assessment ecological

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References(60)

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