Assessment of the impact of microplastic ingestion in striped red mullets from an Eastern Mediterranean coastal area (Zakynthos Island, Ionian Sea)

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 196, P. 106438 - 106438

Published: March 6, 2024

Language: Английский

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Screening of Microplastics in Aquaculture Systems (Fish, Mussel, and Water Samples) by FTIR, Scanning Electron Microscopy–Energy Dispersive Spectroscopy and Micro-Raman Spectroscopies

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(17), P. 9705 - 9705

Published: Aug. 28, 2023

In the last decade, plastic waste has become one of main threats to marine ecosystems and their biodiversity due its abundance increased persistence. Microplastics can be classified as either primary, i.e., fabricated for commercial use, or secondary, resulting from fragmentation/weathering processes larger pieces in environment. general, microplastics are detected a number aquatic organisms (e.g., fish, bivalves, mollusks, etc.) with alarming effects on health. Therefore, present work focuses detection identification fish species (Dicentrarchus labrax, Sparus aurata) mussels (Mytilus galloprovincialis) aquaculture systems since these largely commercially available consumption. addition, seawater was also screened types polymers well aging. The experimental protocol biota samples contains digestion step using Fenton’s reagent (0.05 M FeSO4⋅7H2O 30% H2O2 at volume ratio 1:1) remove organic material followed by filtration density separation where sample mixed saturated ZnCl2 solution separate microplastic particles heavier material. For (sampled net sampler), only sieving stainless steel sieves silica filters applied. Detection polymeric composition achieved through combined use micro-Raman analysis, Attenuated Total Reflectance–Fourier Transform Infrared spectroscopy, Scanning Electron Microscopy tandem Energy Dispersive X-ray spectroscopy. Microplastic 16 ± 1.7 items/individual 22 2.1 sea bass, 40 3.9 bream, polyethylene (74.4%) being most polymer type, while polyethylene-co-vinyl acetate (65%), polyvinyl-butyral (36.8%), polyvinyl alcohol (20%), polybutyl methacrylate (15.8%) were lesser extent. isolated films (30%), fragments fibers some them derived foams (20%). Also, seawater-recovered microplastics, relatively high degree oxidation (carbonyl index > 0.31) observed, which further confirmed results Finally, images showed various morphological characteristics (cracks, cavities, burrs) surfaces attributed environmental exposure.

Language: Английский

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Biomarkers of oxidative stress, inflammation, and genotoxicity to assess exposure to micro- and nanoplastics. A literature review

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 267, P. 115645 - 115645

Published: Nov. 1, 2023

The increased awareness about possible health effects arising from micro- and nanoplastics (MNPs) pollution is driving a huge amount of studies. Many international efforts are in place to better understand characterize the hazard MNPs present environment. literature search was performed according Preferred Reporting Items for Systematic Reviews Meta-Analyses (PRISMA) methodology two different databases (PubMed Embase). selection articles carried out blind, screening titles abstracts inclusion exclusion criteria. In general, these studies rely on already use assessing nanomaterials particles concern. However, only limited number have so far directly measured human exposure examined relationship between such its impact health. This review aims provide an overview current state research biomarkers oxidative stress, inflammation, genotoxicity that been explored relation exposure, using human, cellular, animal, plant models. Both in-vitro in-vivo models suggest level stress inflammation as main mechanism action (MOA) leading adverse chronic immunotoxicity genotoxicity. With identification biological endpoints, representing critical key initiating events (KIEs) towards adaptive or outcomes, it identify panel surrogate be applied validated especially occupational settings, where higher levels may occur.

Language: Английский

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Microplastics in marine mussels, biological effects and human risk of intake: A case study in a multi-stressor environment

Marine Pollution Bulletin, Journal Year: 2023, Volume and Issue: 197, P. 115704 - 115704

Published: Nov. 8, 2023

This study documented seasonal levels of microplastics (MPs) and biomarkers (condition index, neurotoxicity, energy, oxidative stress) in mussels (Mytilus galloprovincialis), water physico-chemical parameters the Douro estuary (NE Atlantic coast), estimated human risk MP intake (HRI) through mussels. Mussel stress was determined Integrated Biomarker Response (IBR). HRI from mussel concentrations consumer habits. MPs were mainly micro-fibres (72 %) with varied chemical composition. Seasonal means (±SEM) ranged 0.111 ± 0.044 (spring) to 0.312 0.092 MPs/g (summer). variations (IBR: 1.4 spring 9.7 summer) not related. MeO-BDEs, PBDEs, temperature, salinity other factors likely contributed variation. 2438 2650 MPs/year. Compared literature, contamination is low, as well their consumption.

Language: Английский

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Toxicological impacts of microplastics on human health: a bibliometric analysis

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 31(46), P. 57417 - 57429

Published: Nov. 8, 2023

Language: Английский

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Exposure to virgin and marine incubated microparticles of biodegradable and conventional polymers modulates the hepatopancreas transcriptome of Mytilus galloprovincialis

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 468, P. 133819 - 133819

Published: Feb. 16, 2024

Biodegradable polymers have been proposed as an alternative to conventional plastics mitigate the impact of marine litter, but research investigating their toxicity is still in its infancy. This study evaluates potential ecotoxicological effects both virgin and marine-incubated microparticles (MPs), at environmentally relevant concentration (0.1 mg/l), made different biodegradable (Polycaprolactone, Mater-Bi, cellulose) (Polyethylene) on Mytilus galloprovincialis by using transcriptomics. approach increasingly being used assess pollutants organisms, obtaining data numerous biological pathways simultaneously. Whole hepatopancreas de novo transcriptome sequencing was performed, individuating 972 genes differentially expressed across experimental groups compared control. Through comparative transcriptomic profiling emerges that preponderant effect attributable incubation MPs, especially for incubated polycaprolactone (731 DEGs). Mater-Bi cellulose alter smallest number processes mussel hepatopancreas. All microparticles, regardless polymeric composition, dysregulated innate immunity, fatty acid metabolism processes. These findings highlight necessity considering interactions MPs with environmental factors ecosystem when performing evaluations. The results obtained contribute fill current knowledge gaps regarding impacts polymers. Non-biodegradable are considered hazardous material a large amount scientific publications worldwide, hazardousness environment open question. present work helps understand sentinel species comparing entire trascriptome mussels exposed concentrations natural (cellulose), Mater-Bi) (polyethylene). sea make experiment extremely realistic.

Language: Английский

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Combined effects of microplastics and benzo[a]pyrene on Asian sea bass Lates calcarifer growth and expression of functional genes

Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology, Journal Year: 2024, Volume and Issue: 283, P. 109966 - 109966

Published: June 17, 2024

Language: Английский

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Toxicological Techniques for Coastal and Marine Pollution Monitoring

Published: March 20, 2025

Language: Английский

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Natural and Regenerated Cellulosic Microfibers Dominate Anthropogenic Particles Ingested by Commercial Fish Species from the Adriatic Sea

Foods, Journal Year: 2025, Volume and Issue: 14(7), P. 1237 - 1237

Published: April 1, 2025

This study investigated the occurrence of fibrous microplastics and natural artificial cellulose microfibers in gastrointestinal tracts Mullus barbatus Merluccius merluccius specimens from Adriatic Sea (Central Mediterranean), an important hotspot for marine litter accumulation. Red mullet European hake were chosen due to their roles as bioindicators pollution Mediterranean, economic relevance fishery resources. Microfibers found 72% M. 68% merluccius, at levels ranging 1 67 particles/individual. Most extracted textile fibers that blue (33.6%), clear (26.1%), black (20.3%) color, while length distribution showed prevalence size range 350–950 µm. visual identification, corroborated by micro-FTIR analysis a sub-sample microfibers, revealed more common (80%) than microplastics. The results confirmed both these fish species are susceptible microfiber ingestion indicated high availability cellulosic Basin. Despite increased evidence ecosystem, only limited number studies examine natural/artificial contamination biota. Therefore, greater attention should be given this new type contaminant, considering its implications terms environmental health, food security, safety.

Language: Английский

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Microplastic contamination and biological alterations in Atlantic wild fish populations, and human health risks associated to fillet consumption

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 208, P. 107139 - 107139

Published: April 12, 2025

Language: Английский

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