Behavior of Microplastics in Inland Waters: Aggregation, Settlement, and Transport

Inland waters are the main medium transporting microplastics to the ocean. Aggregation, vertical settlement, and horizontal transport will occur when microplastics enter the inland waterbodies. This paper reviews these behaviors of microplastics in inland waters and their influencing factors. The ag...

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Bibliographic Details
Published inBulletin of environmental contamination and toxicology Vol. 107; no. 4; pp. 700 - 709
Main Authors Yan, Mengqi, Wang, Lei, Dai, Yuanyuan, Sun, Hongwen, Liu, Chunguang
Format Journal Article
LanguageEnglish
Published New York Springer US 01.10.2021
Springer Nature B.V
Subjects
Agglomeration
Aquatic Pollution
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental conditions
Environmental Health
Focused Review
Hydrology
Inland waters
Mathematical models
Microorganisms
Microplastics
Morphology
Numerical models
Plastic debris
Plastic pollution
Pollution
rain
Rainfall
rivers
Soil Science & Conservation
surface water
toxicology
vegetation
Waste Water Technology
Water Management
Water Pollution Control
Aggregation
Settlement
Inland water
Microplastic
Transport
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Summary:Inland waters are the main medium transporting microplastics to the ocean. Aggregation, vertical settlement, and horizontal transport will occur when microplastics enter the inland waterbodies. This paper reviews these behaviors of microplastics in inland waters and their influencing factors. The aggregation of microplastics were divided into homogeneous aggregation and heterogeneous aggregation, which are critical for the settlement of microplastics. The settlement of microplastics in inland water bodies is influenced by microplastic properties (size, density, and shapes) and environmental conditions (microorganisms, sedimental properties, hydraulic conditions, and so on). Horizontal transport of microplastics in water is influenced by hydrologic conditions, rainfall, river morphologies, dams, vegetation, etc. Future perspectives including laboratory simulations and numerical models involving multiple factors, the behaviors of degradable plastics, and the influence of hydrologic conditions have been proposed.
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ISSN:0007-4861
1432-0800
1432-0800
DOI:10.1007/s00128-020-03087-2