Impacts of soil microplastics on crops: A review

Iqbal, Babar; Zhao, Tingting; Yin, Weiqing; Zhao, Xin; Quan, Xie; Khan, Kiran Yasmin; Zhao, Xiaoxun; Nazar, Mudasir; Li, Guanlin; Du, Daolin

doi:10.1016/j.apsoil.2022.104680

Cited by 83 publications

(22 citation statements)

References 146 publications

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“…Microplastics are some plastic microbeads with smaller sizes than 5 mm compared to sizes of plastic, which are easier to residue in the environment. As time goes on, microplastics cumulatively and directly damage soils and crops due to residue in the soil 1 . Additionally, microplastics cause organism damage, trigger biological behaviors and form compound pollution in marine ecosystems 2 .…”

Section: Introductionmentioning

confidence: 99%

Microplastic separation and enrichment in microchannels under derivative electric field gradient by bipolar electrode reactions

Sun,

Ma,

et al. 2024

Sci Rep

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The decomposed plastic products in the natural environment evolve into tiny plastic particles with characteristics such as small size, lightweight, and difficulty in removal, resulting in a significant pollution issue in aquatic environments. Significant progress has been made in microplastic separation technology benefiting from microfluidic chips in recent years. Based on the mechanisms of microfluidic control technology, this study investigates the enrichment and separation mechanisms of polystyrene particles in an unbuffered solution. The Faraday reaction caused by the bipolar electrodes changes the electric field gradient and improves the separation efficiency. We also propose an evaluation scheme to measure the separation efficiency. Finite element simulations are conducted to parametrically analyze the influence of applied voltages, channel geometry, and size of electrodes on plastic particle separation. The numerical cases indicate that the electrode-installed microfluidic channels separate microplastic particles effectively and precisely. The electrodes play an important role in local electric field distribution and trigger violent chemical reactions. By optimizing the microchannel structure, applied voltages, and separation channel angle, an optimal solution for separating microplastic particles can be found. This study could supply some references to control microplastic pollution in the future.

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Section: Introductionmentioning

confidence: 99%

Microplastic separation and enrichment in microchannels under derivative electric field gradient by bipolar electrode reactions

Sun,

Ma,

et al. 2024

Sci Rep

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“…MPs mainly include polystyrene (PS), polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyester (PEst) and polyethylene terephthalate (PET), which can be further divided into fragments, foams, granules, fibers and films [4,5]. MPs are mostly nonbiodegradable and have been found in the environment, consumer product, as well as in a variety of agricultural products globally [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, MPs can be transferred from algae to zooplankton and eventually to fish [10]. MPs in farmland soil can also accumulate in plants [6,11], and enter agricultural products consumed by humans [12,13].…”

Section: Introductionmentioning

confidence: 99%

High-resolution characterization technology for micro-/nano-plastics

Cao,

Sun,

Zhang

et al. 2024

J. Phys. D: Appl. Phys.

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Microplastics (MPs) are plastic residues with a size <5 mm, which are often further broken into micro/nano size particles in the environment. Owing to their minute scale, widespread distribution, and substantial toxicity potential, microplastics has emerged as a critical environmental concern. Therefore, accurate characterization of these particles becomes a formidable yet imperative challenge in environmental science. In this review, a comprehensive overview on current microplastic characterization techniques, including microscopy/electron microscopy, spectroscopy, and mass spectrometry, have been summarized and discussed. We assess their applicability, strengths, limitations, as well as recent advancements. We also highlight the features offered by different techniques and the particles size range for which each technique is suitable. Furthermore, the combination of different characterization techniques and some novel techniques that can be used in microplastic characterization are also mentioned. This work offers a reference for microplastic characterization, which will facilitate the detection of microplastic in the environment.

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“…Moreover, both conventional and biodegradable MPs can serve as carriers of heavy metals that are added during the production processes to improve the specific performance, functionality and aging properties of the end products [ 10 ]. During the weathering and fragmentation processes of plastic sheets, metals can be released leading to the contamination of the soil system [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Metal Release from Microplastics to Soil: Effects on Soil Enzymatic Activities and Spinach Production

Santini

Memoli

Vitale

et al. 2023

IJERPH

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Microplastics (MPs) represent emergent pollutants in terrestrial ecosystems. Microplastics can cause the release of metal and damage to crop quality. The present research aimed to evaluate the effects of Mater-bi (Bio-MPs) and polyethylene (PE-MPs) MPs at different concentrations on soil properties and on the growth of Spinacia oleracea L. Plants were grown in 30 pots filled with soil mixed with 0.5, 1 and 2% d.w. of Bio-MPs and PE-MPs and in 5 pots filled only with soil, considered as controls (K). At the end of the vegetative cycle, the spinach plants were evaluated for the epigeal (EPI) and hypogeal (HYPO) biomasses and the ratio of HYPO/EPI was calculated. In the soil, the total and the available fractions of Cr, Cu, Ni and Pb and the hydrolase (HA), β-glucosidase (β-glu), dehydrogenase (DHA) and urease (U) activities were evaluated. The results revealed that the addition of Bio-MPs increased soil total Cr, Cu and Pb and available Cu concentrations, and the addition of PE-MPs increased Pb availability. In soil contaminated by both Bio-MPs and PE-MPs, HA and β-glu activities were stimulated, whereas DHA activity was reduced. The HYPO and HYPO/EPI biomasses were reduced only in soils contaminated by the 2% Bio-MPs.

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Impacts of soil microplastics on crops: A review

Cited by 83 publications

References 146 publications

Microplastic separation and enrichment in microchannels under derivative electric field gradient by bipolar electrode reactions

Microplastic separation and enrichment in microchannels under derivative electric field gradient by bipolar electrode reactions

High-resolution characterization technology for micro-/nano-plastics

Metal Release from Microplastics to Soil: Effects on Soil Enzymatic Activities and Spinach Production

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