Physisorption and Chemisorption Mechanisms Influencing Micro (Nano) Plastics-Organic Chemical Contaminants Interactions: A Review
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TLDR
In this paper, a review article draws on scientific literature to discuss inherent polymers typically used in plastics and their affinity for different organic contaminants, as well as the compositions, environmental factors, and polymeric properties that influence their variability in sorption capacities.Abstract:
Microplastics, which serve as sources and vector transport of organic contaminants in
both terrestrial and marine environments, are emerging micropollutants of increasing
concerns due to their potential harmful impacts on the environment, biota and human
health. Microplastic particles have a higher affinity for hydrophobic organic contaminants
due to their high surface area-to-volume ratio, particularly in aqueous conditions. However,
recent findings have shown that the concentrations of organic contaminants adsorbed on
microplastic surfaces, as well as their fate through vector distribution and ecological risks,
are largely influenced by prevailing environmental factors and physicochemical properties
in the aquatic environment. Therefore, this review article draws on scientific literature to
discuss inherent polymers typically used in plastics and their affinity for different organic
contaminants, as well as the compositions, environmental factors, and polymeric
properties that influence their variability in sorption capacities. Some of the specific
points discussed are (a) an appraisal of microplastic types, composition and their fate
and vector transport in the environment; (b) a critical assessment of sorption mechanisms
and major polymeric factors influencing organic contaminants-micro (nano) plastics (MNPs) interactions; (c) an evaluation of the sorption capacities of organic chemical
contaminants to MNPs in terms of polymeric sorption characteristics including
hydrophobicity, Van der Waals forces, π–π bond, electrostatic, and hydrogen bond
interactions; and (d) an overview of the sorption mechanisms and dynamics behind
microplastics-organic contaminants interactions using kinetic and isothermal models.
Furthermore, insights into future areas of research gaps have been highlighted.read more
Citations
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TL;DR: In this paper , the degradation of personal protection equipment (PPE) in the marine environment and its consequences are poorly understood; however, in situ degradation experiments, including the colonization of PPE, are largely lacking.
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Two-Dimensional Gallium Oxide Monolayer for Gas-Sensing Application.
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Micro(nano)plastics Prevalence, Food Web Interactions, and Toxicity Assessment in Aquatic Organisms: A Review
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TL;DR: In this article , a review mainly addresses the prevalence, food web interactions, and toxicity assessment of micro(nano) plastics in marine and freshwater organisms, and summarizes documented studies based on the following broad objectives: (1) the occurrence and prevalence of micro-nano-plastic plastic particles in marine environments; (2) the ingestion of MNPs by aquatic biota and the food web exposure routes and bioaccumulation of contaminated MNPs, and (3) the adsorption and desorption of persistent organic pollutants, metals, and chemical additives on/from micro-plastics; and (4) the probable ecotoxicological effects of microplastic ingestion on aquatic organisms.
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Personal protective equipment (PPE) pollution in the Caspian Sea, the largest enclosed inland water body in the world
TL;DR: In this paper , the authors assessed PPE pollution in the Iranian coast of the Caspian Sea, the largest enclosed inland water body in the world by following standard monitoring procedures, and the results concerning the density (1.02 × 10-4 PPE/m2) composition (face masks represented 95.3% of all PPE) were comparable to previous studies in marine waters.
References
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Interactive effects of polystyrene microplastics and roxithromycin on bioaccumulation and biochemical status in the freshwater fish red tilapia (Oreochromis niloticus).
TL;DR: PS-MPs were found to enhance the bioaccumulation of ROX in fish tissues compared to ROX-alone exposure, and oxidative damage in situations of co-exposure to MPs and ROX was mitigated in fish livers after 14 d of exposure, suggesting that the presence of MPs may affect the metabolism ofROX in tilapia.
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Ingested microplastics (>100 μm) are translocated to organs of the tropical fiddler crab Uca rapax
Dennis Brennecke,Érica Camila Ferreira,Tarso M.M. Costa,Daniel Appel,Bernardo A.P. da Gama,Mark Lenz +5 more
TL;DR: The presence of microplastics in different organs of the crab supports the assumption that these particles have the potential to harm marine invertebrates.
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Adsorption of perfluoroalkyl substances on microplastics under environmental conditions.
TL;DR: The capacity of three MPLs is studied to sorb 18 perfluoroalkyl substances (PFASs; including carboxylic acids, sulphonates and one sulphonamide) from the surrounding waters and the presence of salts decreases the tendency of PFASs to be sorbed onto plastic surfaces.
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Beyond the synthesis of novel solid phases: Review on modelling of sorption phenomena
TL;DR: A review of the methods proposed for the description of the sorption phenomena, from the thermodynamic, kinetic and dynamic point of view, can be found in this paper, focusing on general methods to describe the sarsption that could be used in alternative to descriptive and operational approaches.
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Microplastics and associated PAHs in surface water from the Feilaixia Reservoir in the Beijiang River, China
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