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Relevant bibliographies by topics / Microplastics toxicity / Dissertations / Theses

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Dissertations / Theses on the topic 'Microplastics toxicity'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Leistenschneider, David. "Physical and chemical toxicity of microplastics on marine organisms." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS283.

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L'objectif de cette thèse de doctorat est de mieux comprendre l'impact chimique et physique du plastique sur les organismes marins. La toxicité chimique du plastique provient soit de la lixiviation des produits chimiques des plastiques, soit de l'adsorption de polluants à la surfaces des plastiques. Étant donné que les expériences de lixiviation dans la littérature ont été réalisées avec des temps de lixiviation courts, des lixiviations jusqu'à 8 mois ont été réalisées. La toxicité et la composition en éléments inorganique des lixiviats ont été analysées. L'adsorption des polluants à la surfac

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2

Björnsdotter, Maria. "Leaching of Residual Monomers, Oligomers and Additives from Polyethylene, Polypropylene, Polyvinyl Chloride, High-density Polyethylene and Polystyrene Virgin Plastics." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-45888.

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Plastic debris are accumulating in our oceans and are degraded into smaller pieces which eventually becomes small enough to be available to lower thropic level organisms. Microplastics, commonly defined as plastic particles <5 mm, are globally distributed and found at remote locations far away from industrialized and populated areas. The effects of macro sized plastics is well understood whilst the effects of microplastics is hard to predict. It is known that microplastics act as transfer vectors for a wide range of toxic chemicals into organisms, and it is also known that the particle itse

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3

DE, FELICE BEATRICE. "MULTI-LEVEL TOXICITY ASSESSMENT OF DIFFERENT EMERGING CONTAMINANTS TOWARDS AQUATIC AND TERRESTRIAL MODEL ORGANISMS." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/822571.

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In recent years, emerging contaminants have attracted the attention of scientific community because of their occurrence and potential hazard towards natural ecosystems. Among emerging contaminants, three major classes of molecules can be identified: pharmaceuticals and personal care products (PPCPs), illicit drugs and microplastics (MPs). After anthropic use, these contaminants enter the environment through several routes, such as the sewage systems or direct input, resulting in a widespread contamination of atmosphere, water, soil and biota. Although the presence of these molecules is well-kn

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4

PICCARDO, MANUELA. "Effetti tossicologici di Micro- e Nano-plastiche in diversi organismi marini modello." Doctoral thesis, Università degli Studi di Trieste, 2021. http://hdl.handle.net/11368/2988908.

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Questo progetto di dottorato si sviluppa su due linee di ricerca, ciascuna delle quali focalizzata su una particolare frazione del marine litter: le MICROplastiche (MP, < 5 mm) e le NANOplastiche (NP, < 1µm). In riferimento alla prima linea di ricerca, nel primo lavoro pubblicato e interamente riportato nella tesi, sono state investigate le possibili interazioni fra MP di PET (polietilentereftalato) ed altri fattori potenzialmente capaci di influenzarne la tossicità, quali il pH dell’acqua di mare (Acido = 7.5 vs. Standard = 8.0) e la disponibilità di cibo (presenza/assenza), testando la tossi

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5

Cormier, Bettie. "Toxicité des microplastiques chez les poissons, au-delà de simple vecteurs de polluants?" Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0036.

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Au cours des dernières années, les plastiques ont attiré un intérêt particulier du public et des scientifiques. Les plastiques ont été classés parmi les polluants émergents, notamment dans le milieu marin de par leur présence ainsi que leur persistance, en particulier les microplastiques (< 5mm, MPs). De nombreuses études ont reportées la présence de MPs dans le milieu marin (eau de surface et sédiments). Cependant, il n’existe pas de méthodes standards pour évaluer leurs potentielle toxicités ainsi que leur rôle en tant que vecteur de polluants au sein des organismes. Cette thèse avait pou

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6

PARENTI, CAMILLA CARLA. "THE ROLE OF PLASTICS AS CARRIER OF ENVIRONMENTAL POLLUTANTS: AN INTEGRATED APPROACH TO ASSESS TOXICITY ON AQUATIC AND TERRESTRIAL SPECIES." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/802263.

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La plastica è un materiale unico per i suoi numerosi vantaggi, tra cui l’essere economico, versatile, leggero, flessibile e resistente. Sono proprio queste indubbie qualità ad aver fatto crescere esponenzialmente la produzione dei polimeri plastici negli ultimi 70 anni, dando vita parallelamente ad una nuova minaccia ambientale, causata soprattutto dalla inadeguata gestione dei rifiuti plastici, la cui maggior parte viene tutt’ora abbandonata in discarica, se non rilasciata direttamente in ambiente. I rischi della dispersione della plastica negli ecosistemi aumentano quando si fa riferimento a

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7

Colpaert, Romain. "Évaluation du devenir et des impacts des microplastiques dans l'environnement terrestre avec l'escargot Cantareus aspersus." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCD019.

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Les écosystèmes terrestres sont considérés comme le plus large réservoir potentiel en microplastiques (MPs). Cependant, il n’existe que peu de données sur la caractérisation de leurs risques dans les sols, et le nombre de modèle biologique utilisé pour leur étude est restreint. L’objectif de ce travail de thèse a été d’étudier le devenir et les effets potentiels des MPs dans l’environnement terrestre en utilisant comme bioindicateur l’escargot Cantareus aspersus. Une première étude a montré des effets écotoxiques des MPs (augmentation ou inhibition de croissance, diminution de la mortalité, in

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8

Pannetier, Pauline. "Outils alternatifs à l'expérimentation animale pour l'évaluation de la toxicité des contaminants de l'environnement : lignées cellulaires et tests embryo-larvaires chez un poisson modèle le Médaka japonais, Oryzias latipes." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0050/document.

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Les poissons sont parmi les modèles aquatiques les plus utilisés pour l’évaluationdes dangers des substances chimiques avant leur mise sur le marché européen(REACh (Registration, Evaluation, Autorisation and Restriction of CHemicals)).Actuellement, cette réglementation ainsi que la directive européenne sur la protectiondes animaux utilisés à des fins scientifiques (2010/63/UE) promeuvent la mise enplace de méthodes alternatives en expérimentation animale. Ces méthodes ont pourbut de remplacer les modèles animaux chaque fois que cela est possible, de réduirele nombre d’animaux utilisés en expér

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9

Tallec, Kevin. "Impacts des nanoplastiques et microplastiques sur les premiers stades de vie (gamètes, embryons, larves) de l'huître creuse Crassostrea gigas Surface functionalization determines behavior of nanoplastic solutions in model aquatic environments, in Chemosphere 225, June 2019 Nanoplastics impaired oyster free living stages, gametes and embryos, in Environmental Pollution 242 (Part B), November 2018 Constraints and priorities for conducting experimental exposures of marine organisms to microplastics, in Frontiers in Marine Science 5(252), July 2018 Cellular responses of Pacific oyster (Crassostrea gigas) gametes exposed in vitro to polystyrene nanoparticles, in Chemosphere 208, October 2018." Thesis, Brest, 2019. http://www.theses.fr/2019BRES0103.

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Depuis 70 ans, les débris plastiques dont la fin de vie a été négligée par les sociétés humaines s’accumulent dans les océans. L’évaluation des effets engendrés par cette contamination ubiquitaire est une préoccupation majeure, notamment au regard des micro- et potentiels nanoplastiques (MNP ; < 5 mm) du fait de leur biodisponibilité pour la plupart des organismes marins. L’objectif de cette thèse était de déterminer les effets des MNP sur les jeunes stades de vie d’une espèce ingénieure des habitats côtiers, l’huître creuse Crassostrea gigas. Les impacts des MNP sur ces jeunes stades sont

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10

Cruz, Pedro Sousa. "Toxicity of mixtures of cyanobacteria and microplastics in aquatic organisms." Master's thesis, 2018. https://hdl.handle.net/10216/118117.

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11

Prata, Joana Correia. "Development of analytical methodologies and toxicity testing of microplastics (METOXPLAS)." Doctoral thesis, 2021. http://hdl.handle.net/10773/33562.

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Microplastics (MP) are a class of anthropogenic contaminants comprising plastic <5 mm, which persist and pervade the environment, interacting with abiotic and biotic systems. Due to their diversity, the array of interactions, and lacking standardized methodologies, many knowledge gaps remain unaddressed despite the growth of published research. In aquatic systems, research in seawater, where MP were first found, is favored over freshwater environments under higher anthropogenic pressures. There is a need to determine the effects of current environmental concentrations of MP in aquatic e

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12

Cruz, Pedro Sousa. "Toxicity of mixtures of cyanobacteria and microplastics in aquatic organisms." Dissertação, 2018. https://hdl.handle.net/10216/118117.

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13

Fonte, Elsa. "Influence of microplastics on the toxicity of cephalexin to early juveniles of the common goby (Pomatoschistus microps) in relation to temperature change." Dissertação, 2014. http://hdl.handle.net/10216/77653.

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14

Fonte, Elsa Elodie Abreu Alves da. "Influence of microplastics on the toxicity of cephalexin to early juveniles of the common goby (Pomatoschistus microps) in relation to temperature change." Master's thesis, 2014. https://repositorio-aberto.up.pt/handle/10216/88788.

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15

Fonte, Elsa Elodie Abreu Alves da. "Influence of microplastics on the toxicity of cephalexin to early juveniles of the common goby (Pomatoschistus microps) in relation to temperature change." Dissertação, 2014. https://repositorio-aberto.up.pt/handle/10216/88788.

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