Microplastics and Nanoplastics: Emerging Contaminants in Food

Journal of Agricultural and Food Chemistry, Год журнала: 2021, Номер 69(36), С. 10450 - 10468

Опубликована: Сен. 2, 2021

As current concerns about food safety issues around the world are still relatively serious, more and have become focus of people's attention. What's serious is that environmental pollution changes in human lifestyles also led to emergence contaminants food, microplastics (MPs) nanoplastics (NPs) being typical representatives. MPs NPs (M/NPs) gradually becoming recognized by regulatory authorities public. Most published reviews on M/NPs been focused ecosystems. In those papers, it only sporadically mentioned can appear food. far as we know, there has not a systematic review existing status This Review focuses harmfulness M/NPs, ways which contaminate residual amount analysis detection methods for Current problems such time-consuming, involving cumbersome operation, giving poor accuracy. future, will be necessary increase research efficient sensitive separation Finally, hoped this arouse awareness attention seriousness

Язык: Английский

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Prediction modelling framework comparative analysis of dissolved oxygen concentration variations using support vector regression coupled with multiple feature engineering and optimization methods: A case study in China

Ecological Indicators, Год журнала: 2023, Номер 146, С. 109845 - 109845

Опубликована: Янв. 2, 2023

Dissolved oxygen (DO) is an essential indicator for assessing water quality and managing aquatic environments, but it still a challenging topic to accurately understand predict the spatiotemporal variation of DO concentrations under complex effects different environmental factors. In this study, practical prediction framework was proposed based on support vector regression (SVR) model coupling multiple intelligence techniques (i.e., four data denoising techniques, three feature selection rules, hyperparameter optimization methods). The holistic tested using matrix (17,532 observation in total) 12 indicators from vital monitoring stations longest inter-basin diversion project world Middle-Route South-to-North Water Diversion Project China), during year 2017 2020 period. results showed that we advocated could successfully concentration variations geographical locations. used "wavelet analysis–LASSO regression–random search–SVR" combination Waihuanhe station has best performance, with Root Mean Square Error (RMSE), (MSE), Absolute (MAE), coefficient determination (R2) values 0.251, 0.063, 0.190, 0.911, respectively. combined methods can significantly promote robustness accuracy provide new universal way investigating understanding drivers variations. For management department, comprehensive also identify reveal key parameters should be concerned monitored factors change. More studies terms potential integrated risk multi-indicators mega projects and/or similar bodies are required future.

Язык: Английский

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Beyond ingestion: Adhesion of microplastics to aquatic organisms

Aquatic Toxicology, Год журнала: 2023, Номер 258, С. 106480 - 106480

Опубликована: Март 20, 2023

The interactions of microplastics with aquatic organisms have been studied primarily using animal species, dietary ingestion being the most important uptake route. However, recent research indicated that also interact biota via bioadhesion. This process has in macrophytes under laboratory conditions where adhered to their biomass, but monitoring studies confirmed microplastic bioadhesion occurs other species and natural environment. Similarly, adhere microorganisms, environment they can be retained by ubiquitous biofilms. occur on a substrate such as sediment or rocks, biofilms are responsible for enhanced biotic surfaces plant surfaces. Adhesion these large could influence abundance bioavailability Only few conducted animals, results may even greater than particle some corals bivalves. ecotoxicological effects not yet fully understood possible transport microplastics, e.g. fish insects, needs considered. In summary, seems an biota. Neglecting environmental context limit our understanding behavior, fate,

Язык: Английский

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Machine learning-based evolution of water quality prediction model: an integrated robust framework for comparative application on periodic return and jitter data

Environmental Pollution, Год журнала: 2025, Номер unknown, С. 125834 - 125834

Опубликована: Фев. 1, 2025

Язык: Английский

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Microplastics in the Ecosystem: An Overview on Detection, Removal, Toxicity Assessment, and Control Release

Water, Год журнала: 2022, Номер 15(1), С. 51 - 51

Опубликована: Дек. 23, 2022

In recent decades, the accumulation and fragmentation of plastics on surface planet have caused several long-term climatic health risks. Plastic materials, specifically microplastics (MPs; sizes < 5 mm), gained significant interest in global scientific fraternity due to their bioaccumulation, non-biodegradability, ecotoxicological effects living organisms. This study explains how are generated, transported, disposed environment based sources physicochemical properties. Additionally, also examines impact COVID-19 plastic waste production. The physical chemical techniques such as SEM-EDX, PLM, FTIR, Raman, TG-DSC, GC-MS that employed for quantification identification MPs discussed. paper provides insight into conventional advanced methods applied microplastic removal from aquatic systems. finding this review helps gain a deeper understanding research toxicity humans, organisms, soil ecosystems. Further, efforts measures been enforced globally combat MP highlighted need be explored reduce its potential risk future.

Язык: Английский

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The Response of Duckweed Lemna minor to Microplastics and Its Potential Use as a Bioindicator of Microplastic Pollution

Plants, Год журнала: 2022, Номер 11(21), С. 2953 - 2953

Опубликована: Ноя. 2, 2022

Biomonitoring has become an indispensable tool for detecting various environmental pollutants, but microplastics have been greatly neglected in this context. They are currently monitored using multistep physico-chemical methods that time-consuming and expensive, making the search new monitoring options of great interest. In context, aim study was to investigate possibility aquatic macrophyte as a bioindicator microplastic pollution freshwaters. Therefore, effects adhesion three types (polyethylene microbeads, tire wear particles, polyethylene terephthalate fibers) two natural particles (wood dust cellulose particles) duckweed Lemna minor were investigated. The results showed fibers had no effect on specific growth rate, chlorophyll content, root length duckweed, while significant reduction latter observed when exposed microbeads particles. percentage adhered ten times higher than other suggesting is specific. Because majority freshwaters made polyethylene, use their biomonitoring could provide important information

Язык: Английский

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Hydro-geomorphic perspectives on microplastic distribution in freshwater river systems: A critical review

Water Research, Год журнала: 2023, Номер 245, С. 120567 - 120567

Опубликована: Сен. 4, 2023

Freshwater river systems are commonly defined as the main transport paths of microplastics (MP) from land into seas. A shift in research interest oceans to rivers can be observed, a large number i) case studies, ii) review papers and iii) experimental studies this field have been published recently. Still, often lack an in-depth consideration quantification, units mostly based on item numbers. Spatiotemporal aspects neglected. Transport linking MP sources sinks environment insufficiently understood only recently awareness increased that sustainable management pollution cannot addressed without sound knowledge water- sediment-driven transport. Within paper, we therefore reviewed 92 case-studies, with special focus spatiotemporal gathered compared global load-estimation data these studies. We then outlined key processes determining movement basis existing laboratory experiments theoretical approaches. procedure effectively compare water column riverine sediments was developed extensive MP-dataset German waterways suspended sediment concentrations (SSC) nearest monitoring stations shipping authority. Our analysis indicates relating samples SSC reduces stated difference between bed relativizes importance beds major "MP sink". As for quantification fluxes, use masses unit is crucial, applied approach convert items help power-law distribution MP-particle size, triangular distributions form-ratios polymer densities. An evaluation own, dataset MP-particles showed reasonable results. Therefore, translated load numbers mass values further analysis. Values were within range, especially when considering respective catchment size each at sampling site.

Язык: Английский

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Temporal and spatial variation of microplastics in the urban rivers of Harbin

The Science of The Total Environment, Год журнала: 2023, Номер 910, С. 168373 - 168373

Опубликована: Ноя. 10, 2023

Язык: Английский

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Occurrence, distribution and sources of microplastics in typical marine recirculating aquaculture system (RAS) in China: The critical role of RAS operating time and microfilter

Water Research, Год журнала: 2024, Номер 255, С. 121476 - 121476

Опубликована: Март 14, 2024

Язык: Английский

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New insight into the effect of microplastics on antibiotic resistance and bacterial community of biofilm

Chemosphere, Год журнала: 2023, Номер 335, С. 139151 - 139151

Опубликована: Июнь 6, 2023

Язык: Английский

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