Research progress of nanoplastics in freshwater

Zhang, Bin; Chao, Jinyu; Liang, Chao; Liu, Lingchen; Yang, Xin; Wang, Qing

doi:10.1016/j.scitotenv.2020.143791

Cited by 75 publications

(22 citation statements)

References 97 publications

(181 reference statements)

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“…The abundance of nano-sized plastic materials in the aquatic environment is continuously increasing with the increasing use of plastic materials and their environmental degradation via physical, chemical, and biological processes [1][2][3]. Concerns about their possible ecotoxicological implications are increasing [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…The presence of humic acid reduced the acute toxicity of these PS NPLs with different functional groups and charges to D. magna [29]. However, despite recent progress, systematic studies on the role of nano-sized plastics and their behavior and possible effects in freshwaters are still missing, despite the fact that they are recognized as central for their ecological and ecotoxicological outcome [3][4][5][6]18].…”

Section: Introductionmentioning

confidence: 99%

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Polystyrene Nanoplastic Behavior and Toxicity on Crustacean Daphnia magna: Media Composition, Size, and Surface Charge Effects

Pochelon

Stoll

2021

Environments

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Concerns about the possible ecotoxicological implications of nano-sized plastic materials in the freshwater environment are growing with the increasing use of plastic materials. The present study focuses on the behavior and effects of amidine-functionalized polystyrene (NPLs) of 20, 40, 60, and 100-nm-size in freshwaters and different synthetic media. Daphnia magna was exposed to increasing concentrations from 0.5 to 30 mg/L (and from 0.5 to 100 mg/L for 100-nm-sized NPLs). The results revealed no significant aggregation in ultra-pure water, culture media, and synthetic water. In the presence of natural organic matter, NPLs of 20 and 40 nm displayed better stability in both freshwater and synthetic media, whereas a significant aggregation of 60 and 100 nm PS NPLs was found. All the studied PS NPLs with size between 20 and 100 nm exhibited acute toxicity to D. magna. The observed 48-h immobilization strongly depended on the primary size of PS NPLs, with 20 and 40-nm-size PS NPLs inducing a stronger effect in both freshwaters and synthetic media. Water quality variables such as pH, cation and anion composition, and DOC were of secondary importance. The results of the present study confirmed the toxicity of NPLs of different sizes to crustaceans in natural freshwater and synthetic media and demonstrated the importance of the primary size of NPLs in the behavior and effects of NPLs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polystyrene Nanoplastic Behavior and Toxicity on Crustacean Daphnia magna: Media Composition, Size, and Surface Charge Effects

Pochelon

Stoll

2021

Environments

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“…Little is known about the toxicity of NPs in freshwater ecosystems. However, the few documented studies are largely lab-based reports that might not reflect similar biological toxicity if replicated in the field (Zhang et al, 2022). These laboratory studies employed polystyrene nanoplastics, and the toxicological effects reported include reproductive abnormalities (Li et al, 2020,a,b), oxidative stress and gastrointestinal dysfunction (Chae et al, 2018;Pitt et al, 2018b;Huang et al, 2020;Li et al, 2020,a), increased mortality (Liu et al, 2019;Liu et al, 2020;Zhang et al, 2020c), growth inhibition and disorder (Liu et al, 2019;Lin et al, 2020;Liu et al, 2020;Zhang et al, 2020c), and cardiovascular dysfunction and neurotoxicity (Chen et al, 2017a,b).…”

Section: Food Web Interactions Of Microplasticsmentioning

confidence: 99%

Micro(nano)plastics Prevalence, Food Web Interactions, and Toxicity Assessment in Aquatic Organisms: A Review

et al. 2022

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Plastic pollution is a fast-rising environmental catastrophe. Microplastics and nanoplastics (MNPs) are ubiquitous components of most aquatic environments, and their burgeoning prevalence is endangering aquatic organisms. Recent studies have documented the entanglement of marine and freshwater biota by plastic litters, particularly ghost fishing gear, resulting in suffocation, drowning, or starving to death. Numerous reports have shown that aquatic organisms readily ingest and accumulate these emerging contaminants in their digestive systems. Given experimental evidence that contaminants-laden MNPs can persist in the gastrointestinal tract for considerable durations, investigations have documented a high probability of lethal and sublethal toxicological effects associated with direct and indirect MNPs ingestions. These include chronic protein modulation, DNA damage, embryotoxicity, gastrointestinal toxicity, genotoxicity, growth inhibition toxicity, histopathotoxicity, liver toxicity, neurotoxicity, oxidative stress, reproductive toxicity, and tissue damage. Today, reports have proven the transfer of MNPs across the aquatic food web to humans. However, the mechanisms of multiple contaminants-laden MNPs-induced toxicities, size-dependent toxicity, and the comprehensive mode-of-action and alterations of digestive, reproductive, and neurological systems’ functionality in marine organisms are still unclear. Thus, this review mainly addresses the prevalence, food web interactions, and toxicity assessment of micro(nano) plastics in marine and freshwater organisms. It summarizes documented studies based on the following broad objectives: (1) the occurrence and prevalence of micro(nano) plastic particles in marine and freshwater environments; (2) the ingestion of MNPs by aquatic biota and the food web exposure routes and bioaccumulation of contaminated MNPs by higher trophic entities; (3) the adsorption and desorption of persistent organic pollutants, metals, and chemical additives on/from micro(nano)plastics; and (4) the probable ecotoxicological effects of micro(nano)plastics ingestion on aquatic biota.

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“…Moreover, for the aggregates the similarity of the NPs is closer to that of the ENMs rather than to the MPs: they form heteroaggregates similar to microorganisms and natural organic matter [34]. Aging: all the factors previously mentioned (e.g., UV, biodegradation, atmospheric agents) alter the surface characteristics of NPs, generating many by-products that cannot be ignored [48]. Another variable linked to degradation is the matrix in which they are present, in fact we know that the polymer itself undergoes accelerated degradation in air rather than in water [49].…”

Section: Simulated Samples-laboratory Testsmentioning

confidence: 99%

“…To date, one of the major problems is the absence of standardized materials for NPs, interference and environmental contamination (laboratory equipment, operators' clothing, personal care, furniture, etc.,). In the work of Materić et al [48] a semi-quantitative methodology is developed through a fingerprint of the characteristic ions and recognition in the library of polymers using the thermal-desorption proton-transfer-reaction mass spectrometer (TD-PTR-MS) starting from a methodology coming from previous studies [49,50]. Polymer reference materials and identification scores are provided in addition to the use of laboratory blanks before testing on real samples [51], the same method is then applied on real snow samples in the Alps [49].…”

Section: Simulated Samples-laboratory Testsmentioning

confidence: 99%

Searching Nanoplastics: From Sampling to Sample Processing

2021

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Nanoplastics (NPs) are considered emerging pollutants, namely unregulated contaminants whose toxic effect on humans and the environment has been demonstrated or suspected. They are the result of the physical fragmentation of the plastics that over time reach smaller dimensions (<100 nm). The issues related to the characterization and quantification of NPs in the environmental matrices are mainly related to the infinitesimal size, to the fact that they are found in bulk, and to the different physico-chemical forms in which the same polymer can evolve over time by degradation. To deal with the study of a new class of pollutants it is necessary to assess the entire analytical method, carefully considering every single step (sampling, cleanup, qualitative, and quantitative analysis) starting from the validation method in the laboratory. This paper reviews the analytical method steps, focusing on the first ones, which the current literature often underestimates: laboratory tests, sampling, and sample processing; in fact, most errors and the quality of the analyses often depend on them. In addition, all newly introduced sample processing methods were examined.

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Research progress of nanoplastics in freshwater

Cited by 75 publications

References 97 publications

Polystyrene Nanoplastic Behavior and Toxicity on Crustacean Daphnia magna: Media Composition, Size, and Surface Charge Effects

Polystyrene Nanoplastic Behavior and Toxicity on Crustacean Daphnia magna: Media Composition, Size, and Surface Charge Effects

Micro(nano)plastics Prevalence, Food Web Interactions, and Toxicity Assessment in Aquatic Organisms: A Review

Searching Nanoplastics: From Sampling to Sample Processing

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