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The occurrence of microplastic in aquatic environment and toxic effects for organisms

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Abstract

Microplastics pollution caused by the popularity of plastic products has become a global environmental concern. The frequent occurrence of microplastics in the aquatic environment has aroused people's concern about the potential risks of pollution in microplastics to the ecosystems and organisms. Moreover, other contaminants (organic pollutants, additives, heavy metals) may be absorbed on the surface of the microplastics, which can be used as a carrier for entering aquatic organisms and even humans. To date, there are still knowledge gaps about the potential risks of microplastics at environmentally relevant concentrations. In this paper, the research achievements on microplastics pollution in the aquatic environment and its toxicity effects in recent years are reviewed. The systematic analysis and comparison show that the global aquatic ecosystems are generally polluted by microplastics and microplastics distribution characteristics are affected by human activities. The bioaccumulation of microplastics can trigger inflammation, affecting growth and reproduction. In addition, the interaction of microplastics with other pollutants may induce combined toxic reactions. Consequently, it is proposed to decrease the use of disposable plastic products and improve the recycling scheme of plastic waste. Strict emission standards need to be refined and water management policies strengthened, particularly in protected areas.

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Abbreviations

MPs:

Microplastics

NPs:

Nanoplastics

Py-GC/MS:

Pyrolysis gas chromatography mass spectrometry

TED-GC/MS:

Thermal extraction desorption gas chromatography mass spectrometry

TGA–DSC:

Thermogravimetry differential scanning calorimetry

FTIR:

Fourier transform infrared spectroscopy

SEM:

Scanning electron microscopy

SEM–EDS:

Scanning electron microscopy energy dispersive spectroscopy

WWTP:

Wastewater treatment plants

SOD:

Superoxide dismutase

PCBs:

Polychlorinated biphenyls

DDT:

Dichlorodiphenyltrichloroethane

PAHs:

Polycyclic aromatic hydrocarbons

Cu:

Copper

Pb:

Lead

Cd:

Cadmium

PP:

Polypropylene

PE:

Polyethylene

PET:

Polyester

PTFE:

Poly tetra fluoroethylene

PA:

Poly amide

PET:

Polyethylene terephthalate

PS:

Polystyrene

PP/PE:

Polypropylene-polyethylene copolymer

PVC:

Polyvinyl chloride

PC:

Polycarbonate

N/A:

Not available

DMS:

Dimethyl sulfide

ROS:

Reactive oxygen species

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Acknowledgements

The authors would like to thank their respective institutions and those who had helped this work.

Funding

No funding was procured toward this review article.

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Authors and Affiliations

Authors

Contributions

All authors contributed to the study conception and design. Data collection and analysis were performed by YC, XC and YZ. The first draft of the manuscript was written by YC and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Y. Q. Zeng.

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Conflict of interest

The authors have no relevant financial or non-financial interests to disclose.

Ethical approval

This article does not contain any studies with human participants performed by any of the authors.

Additional information

Editorial responsibility: Xu Han.

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Chen, Y.Y., Cheng, X.T. & Zeng, Y.Q. The occurrence of microplastic in aquatic environment and toxic effects for organisms. Int. J. Environ. Sci. Technol. 20, 10477–10490 (2023). https://doi.org/10.1007/s13762-023-04789-w

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  • DOI: https://doi.org/10.1007/s13762-023-04789-w

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