Log in

Relevant bibliographies by topics / Plastic pollution / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Plastic pollution.

Dissertations / Theses on the topic 'Plastic pollution'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Plastic pollution.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Duncan, E. "The impact of plastic pollution on marine turtles." Thesis, University of Exeter, 2019. http://hdl.handle.net/10871/36309.

Full text

Abstract:

Plastic debris is entering into the marine environment at an accelerating rate, now becoming one of the most ubiquitous and long-lasting changes in natural systems. Marine turtles are large marine vertebrates with complex life histories and highly mobile behaviour that may make them particularly vulnerable to its impacts. The main goals of this thesis were to i) evaluate the potential implications of the presence of plastic pollution in the environment to marine turtles by reviewing current literature ii) provide a global summary of the issue of entanglement in this taxon, utilising a global n

APA, Harvard, Vancouver, ISO, and other styles

2

Palko, Kathryn. "Shifting the pollution problem recycling plastics in southern China /." online access from Digital Dissertation Consortium access full-text, 2005. http://libweb.cityu.edu.hk/cgi-bin/er/db/ddcdiss.pl?MR15259.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Weideman, Eleanor A. "Quantifying land-based sources of plastic pollution in South Africa." Master's thesis, Faculty of Science, 2020. http://hdl.handle.net/11427/32362.

Full text

Abstract:

It is widely claimed that at least 80% of the plastic litter entering marine environments comes from land-based sources, yet there is little empirical evidence to support this. Most studies to date predict the flux of litter from land to sea using global models based on a handful of field studies conducted mostly in developed, Northern Hemisphere countries; others use proxies such as per capita waste generation and proportion of mismanaged waste to predict litter loads entering the sea. It thus remains unclear how accurate these predictions are, particularly for African countries where few fie

APA, Harvard, Vancouver, ISO, and other styles

4

Диченко, Тетяна Василівна, Татьяна Васильевна Дыченко, Tetiana Vasylivna Dychenko, Мвамба Чивуфа, and Mvamba Chyvufa. "Pollution problems associated with the disposal of plastics." Thesis, Изд-во СумГУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/5347.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Sylla, Traore Assitan. "Gender and Plastic Bag Pollution: Consumption, Globalization, and Environmental Justice in Mali." Thesis, University of Oregon, 2014. http://hdl.handle.net/1794/17902.

Full text

Abstract:

This study focuses on women vendors' perspectives on plastic bag consumption in markets in Mali. It also investigates how women across the urban and rural divide are affected by plastic bag pollution and to what extent women in Mali are included in policy formulation addressing plastic bag issues. I interviewed thirty women vendors in three research sites: Bougouni, Koulikoro and Bamako. In addition, I interviewed five Mali Officials including the Prime Minister and the Minister of Environment. Plastic bags continue to be used widely in all African countries, including Mali. This has created

APA, Harvard, Vancouver, ISO, and other styles

6

Rydholm, Rosanna. "Metamorphosis - Making plastic transparent." Thesis, KTH, Arkitektur, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298812.

Full text

Abstract:

In this thesis project I try to make visible the complex problems behind the plastic pollution crisis, the skewed ideas of synthetic plastic and recycling we as consumers are taught, and in what way architecture can help make these systems visible. This is achived through a design method of growth and transformation using plastic waste to create a building that uncovers what would otherwise not bee seen.

APA, Harvard, Vancouver, ISO, and other styles

7

Shevchenko, Y., Ірина Анатоліївна Башлак, Ирина Анатольевна Башлак, and Iryna Anatoliivna Bashlak. "Plastic as a threat to humanity and its alternative." Thesis, Sumy State University, 2020. https://essuir.sumdu.edu.ua/handle/123456789/77942.

Full text

Abstract:

Our civilization is built on plastic. Plastic literally pass through our hands all day. The amount of plastic that we meet every day, not the end. Plastic has become an epidemic. But where does all this plastic? A small part is recycled, goes to landfills, and a large part falls into the water. Plastic trash can be found everywhere — on land, at sea and even deep on the ocean floor. Planet pollution waste plastic turns into a real ecological disaster.

APA, Harvard, Vancouver, ISO, and other styles

8

Fugagnoli, Alice. "The ratio of plastic to plankton in the Mediterranean Sea." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16962/.

Full text

Abstract:

Plastic pollution is a huge problem that is affecting all the oceans of the Earth. Plastic items end into the sea, break into tiny pieces and pollute the marine environment. The aim of this research is to increase our knowledge on this problem by comparing microplastic and zooplankton distributions. Samples from the Mediterranean Sea and Gibraltar Strait have been collected and analyzed. Plastic fragments have been extracted, weighted, photographed, measured and analyzed with a hyperspectral camera. The planktonic part of the samples has been analyzed identifying the main typology of organism

APA, Harvard, Vancouver, ISO, and other styles

9

Thibault, Margot. "Composition, abundance, origin and distribution of plastic pollution accumulated in the Southern Indian Ocean gyre." Electronic Thesis or Diss., La Réunion, 2024. https://elgebar.univ-reunion.fr/login?url=http://thesesenligne.univ.run/24_01_M_THIBAULT.pdf.

Full text

Abstract:

La plupart des déchets plastiques mal gérés pénètrent dans l'environnement marin. Une fois dans les océans, ces plastiques dérivent jusqu'à atteindre des zones de convergence subtropicales, où ils s'accumulent pour former des « Garbage Patch ». Cinq de ces zones ont été découvertes,dont l’une dans le sud de l'océan Indien. Cette dernière a fait l'objet de peu d'études d'observation en surface, et plusieurs modèles de dispersion indiquent une localisation différente, la plaçant soit à l’ouest ou à l’est du bassin. Supposée être la deuxième « Garbage Patch » la plus polluée après celle du Pacifi

APA, Harvard, Vancouver, ISO, and other styles

10

DUCOLI, SERENA. "Development of new reference nanomaterials for environmental plastic pollution and assessment of interactions with biological systems." Doctoral thesis, Università degli studi di Brescia, 2022. http://hdl.handle.net/11379/558641.

Full text

Abstract:

Comprendere l'impatto delle micro- e nanoplastiche sugli ecosistemi sta diventando sempre più importante, come evidenziato dalla crescita esponenziale della letteratura scientifica riguardante questi inquinanti. Le nanoplastiche si formano in ambiente a causa di processi naturali di degradazione dei rifiuti plastici. Tuttavia, i campioni ambientali sono difficili da gestire, a causa della loro complessità, eterogeneità e dell'alto livello di impurità naturali. Per questo motivo, la gran parte degli studi condotti finora si basa sull’utilizzo di nanoparticelle sintetiche, come modelli delle nan

APA, Harvard, Vancouver, ISO, and other styles

11

DUCOLI, SERENA. "Development of new reference nanomaterials for environmental plastic pollution and assessment of interactions with biological systems." Doctoral thesis, Università degli studi di Brescia, 2022. http://hdl.handle.net/11379/558645.

Full text

Abstract:

Comprendere l'impatto delle micro- e nanoplastiche sugli ecosistemi sta diventando sempre più importante, come evidenziato dalla crescita esponenziale della letteratura scientifica riguardante questi inquinanti. Le nanoplastiche si formano in ambiente a causa di processi naturali di degradazione dei rifiuti plastici. Tuttavia, i campioni ambientali sono difficili da gestire, a causa della loro complessità, eterogeneità e dell'alto livello di impurità naturali. Per questo motivo, la gran parte degli studi condotti finora si basa sull’utilizzo di nanoparticelle sintetiche, come modelli delle nan

APA, Harvard, Vancouver, ISO, and other styles

12

DUCOLI, SERENA. "Development of new reference nanomaterials for environmental plastic pollution and assessment of interactions with biological systems." Doctoral thesis, Università degli studi di Brescia, 2022. http://hdl.handle.net/11379/558656.

Full text

Abstract:

Comprendere l'impatto delle micro- e nanoplastiche sugli ecosistemi sta diventando sempre più importante, come evidenziato dalla crescita esponenziale della letteratura scientifica riguardante questi inquinanti. Le nanoplastiche si formano in ambiente a causa di processi naturali di degradazione dei rifiuti plastici. Tuttavia, i campioni ambientali sono difficili da gestire, a causa della loro complessità, eterogeneità e dell'alto livello di impurità naturali. Per questo motivo, la gran parte degli studi condotti finora si basa sull’utilizzo di nanoparticelle sintetiche, come modelli delle nan

APA, Harvard, Vancouver, ISO, and other styles

13

Sucharitakul, Phuping. "Sources, effects and trophic transfer of microplastics in jellyfish." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/408941.

Full text

Abstract:

A discrepancy between high plastic production rates and low recycling rates contributes to a ubiquitous plastic pollution problem. If this discrepancy persists, it is estimated that approximately 12 billion tons of plastics will accumulate in the environment by 2050. Although many countries have issued policies to limit the utilisation of single use plastics, the COVID-19 pandemic has increased demands for plastics and overwhelmed waste management systems. Thus, plastic pollution will persist, especially in marine environments where most mismanaged plastics accumulate. Plastics in the marine e

APA, Harvard, Vancouver, ISO, and other styles

14

Carreras, Colom Ester. "Unravelling the (micro)plastic threat: the case study of plastic ingestion in Aristeus antennatus and Nephrops norvegicus from the NW Mediterranean Sea and its potential impact on health condition." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/673655.

Full text

Abstract:

L’impacte de la contaminació per plàstics, especialment en forma de microplàstics, ha copsat l’atenció dels mitjans durant les últimes dècades. La seva distribució generalitzada i la facilitat per interaccionar amb multitud d’organismes, sobretot a través se la seva ingestió, ha fet qüestionar-se el seu potencial impacte sobre els organismes marins. L’objectiu de la present tesis és caracteritzar la ingestió de plàstics en dues espècies clau del Mar Mediterrani, els crustacis Aristeus antennatus i Nephrops norvegicus. Ambdues espècies, per la seva proximitat i estreta relació amb el fons marí,

APA, Harvard, Vancouver, ISO, and other styles

15

Whitman, Jacquelyn Dale (JD). "Confronting ecophobia: increasing ecoliteracy through art and marine science." Thesis, University of Iowa, 2019. https://ir.uiowa.edu/etd/6881.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Wright, Stephanie. "The potential for microplastics to cause harm in the marine environment." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/18868.

Full text

Abstract:

Plastic debris is an emerging environmental issue, with >10 million tons of plastics debris per annum entering the sea. Exposure to marine conditions facilitates the exponential fragmentation of plastic to micro-sized particles (microplastics). Marine and coastal sediments are a sink for microplastic pollution. Consequently, the ingestion of microplastics by a range of benthic marine invertebrates, including polychaete worms, has been reported in situ. Microplastics are vectors for priority pollutants capable of eliciting adverse health effects. However, the particle and chemical toxicity whic

APA, Harvard, Vancouver, ISO, and other styles

17

Silva, Danilo Balthazar. "Spatial distribution, input and dispersion of plastic pellets in coastal zones." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/21/21134/tde-16022017-102052/.

Full text

Abstract:

The production and the usage of plastic material increases since the decade of 1950. Nowadays, the elevated production rate, the misusing and the waste turned plastic material in an urgent environmental and economic problem. One of the major environmental problems related to this issue is the contamination of marine environments by microplastics. These constitute plastic particles of size between 1 and 5 mm. Microplastics might occur by breaking of larger plastic pieces or as a manufactured product. The plastic pellets are among this second class, these are small plastic spherules (≥ 5 m

APA, Harvard, Vancouver, ISO, and other styles

18

Sonko, Amidou. "Dignostic écotoxicologique de la pollution marine au Sénégal." Electronic Thesis or Diss., Lorient, 2022. http://www.theses.fr/2022LORIS643.

Full text

Abstract:

Nous avons étudié la pollution marine des sédiments et des eaux côtières de la presqu’ile du Cap-Vert et de la Petite côte. Les résultats montrent que la perception des populations n’est pas toujours en phase avec les observations scientifiques. La population signale un niveau de pollution principalement modérée mais qui s’est aggravé ces dix dernières années. La majorité des sites étudiés n’est pas conforme aux qualités microbiologiques de l’eau de baignade d’un point de vu microbiologique. Les quantités de microplastiques de certains sites sont élevées. Les macroplastiques en mer, ne sont pa

APA, Harvard, Vancouver, ISO, and other styles

19

Catanzarite, Lori Frances. "Fractured Environments: The Scars of our Existence." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1511686951768637.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Conner, Mariah. "Plasticozoic." CSUSB ScholarWorks, 2018. https://scholarworks.lib.csusb.edu/etd/746.

Full text

Abstract:

Plasticozoic excavates humanity’s relationship to nature and to ourselves through plastic artifacts of consumer culture, which were recovered from oceans and beaches by the artist, or sent to her from around the world. Through created specimens and collected fragments of the Anthropocene, it considers the precariousness of our place in time, where misperceptions of reality and the collective impact of our every day lives can have global effects. "Future geologists will be able to precisely mark our era as the Plasticozoic, the place in the sands of time in which bits of plastic first appeared.

APA, Harvard, Vancouver, ISO, and other styles

21

Galli, Matteo. "Development, harmonizing and application of innovative methodologies for the study of the presence and effects of marine litter on organisms in Mediterranean marine protected areas within the Plastic Busters MPAs project." Doctoral thesis, Università di Siena, 2022. http://hdl.handle.net/11365/1203386.

Full text

Abstract:

The irreversibility and global ubiquity of marine litter pollution and plastic, in particular, make this material a potential planetary boundary threat. Although the growing attention from the scientific community and the increasing number of peer-reviewed papers, the occurrence and distribution of plastic litter in the Mediterranean Marine Protected Areas (MPAs) and its impacts and effects on marine wildlife remain still poorly investigated. Within the Plastic Busters MPAs project, this PhD thesis provided a comprehensive assessment of marine litter pollution in the sea surface waters and bea

APA, Harvard, Vancouver, ISO, and other styles

22

Laffet, Lucie. "Impact de la pollution plastique sur les communautés microbiennes de rivière." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2023. http://www.theses.fr/2023UCFA0149.

Full text

Abstract:

La pollution plastique, résultant de la production massive et de l'utilisation de plastiques depuis le 20e siècle, est omniprésente dans la biosphère. Les plastiques, conçus pour leur durabilité, perdurent des décennies, voire des siècles, et se fragmentent en microplastiques, répandus partout, des fonds marins aux montagnes. Dans le milieu aquatique, les plastiques favorisent la formation de communautés microbiennes, appelées "plastisphère", similaires aux biofilms aquatiques naturels. Les écosystèmes marins ont été largement étudiés pour quantifier la présence de plastiques, en particulier d

APA, Harvard, Vancouver, ISO, and other styles

23

Kedzierski, Mikaël. "Pollutions du milieu littoral par les microplastiques : Méthodes d’évaluation." Thesis, Lorient, 2017. http://www.theses.fr/2017LORIS464/document.

Full text

Abstract:

Les plastiques sont des matériaux techniques nécessaires au fonctionnement des sociétés industrialisées. Cependant, au début des années 2000, des particules de plastique de l’ordre de la dizaine de microns sont observées dans des échantillons d’eau de mer. Ce sont des « microplastiques ». Leur présence dans la plupart des milieux a progressivement été mise en lumière au point d’en faire un marqueur de l’anthropocène. Par ailleurs, ces particules interagissent avec leur environnement et peuvent être vectrices d’additifs toxiques ou de micropolluants. Face aux risques que représentent ces partic

APA, Harvard, Vancouver, ISO, and other styles

24

Cheng, Jingguang. "Microplastics in the marine environment : an ecotoxicological perspective." Electronic Thesis or Diss., Sorbonne université, 2020. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2020SORUS025.pdf.

Full text

Abstract:

La pollution plastique océanique est l’une préoccupation majeure de notre siècle, avec plusieurs millions de tonnes de plastique déversées dans l'océan chaque année qui menacent la santé des écosystèmes. Les effets des plastiques ont été identifiés à tous les niveaux de la chaîne trophique, du zooplancton à la mégafaune, mais leurs effets sur la vie des microorganismes et sur leur rôle crucial dans le fonctionnement de l'écosystème océanique restent méconnus. L'objectif de cette thèse était d'étudier l'écotoxicité des plastiques en milieu marin. La première question traitée était : dans quelle

APA, Harvard, Vancouver, ISO, and other styles

25

Kedzierski, Mikaël. "Pollutions du milieu littoral par les microplastiques : Méthodes d’évaluation." Electronic Thesis or Diss., Lorient, 2017. http://www.theses.fr/2017LORIS464.

Full text

Abstract:

Les plastiques sont des matériaux techniques nécessaires au fonctionnement des sociétés industrialisées. Cependant, au début des années 2000, des particules de plastique de l’ordre de la dizaine de microns sont observées dans des échantillons d’eau de mer. Ce sont des « microplastiques ». Leur présence dans la plupart des milieux a progressivement été mise en lumière au point d’en faire un marqueur de l’anthropocène. Par ailleurs, ces particules interagissent avec leur environnement et peuvent être vectrices d’additifs toxiques ou de micropolluants. Face aux risques que représentent ces partic

APA, Harvard, Vancouver, ISO, and other styles

26

Roncari, Chiara. "Evaluation of microplastic content in faecal sample from hospitalized loggerhead sea turtles (Caretta caretta) of the North Adriatic Sea." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20386/.

Full text

Abstract:

Microplastics represent persistent and highly dispersal pollutants in the marine environment. The knowledge about ingestion and relative effects in large marine vertebrates, such as sea turtles, is still fragmentary. To date, studies on MP accumulation in these animals were based on the analysis of gastrointestinal tracts obtained after necropsy. In this study, we developed a protocol that allows the study of the MP through faecal material from alive turtles, that can be used in rescue centres in several locations. Specifically, faecal samples from 45 specimens of Caretta caretta, rescued alon

APA, Harvard, Vancouver, ISO, and other styles

27

Silva, Pablo Pena Gandara e. "Contaminação e toxicidade de microplásticos em uma área de proteção marinha costeira." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-27092016-084059/.

Full text

Abstract:

Os plásticos têm trazido grandes benefícios aos humanos, sendo utilizados em diversas atividades como em aplicações médicas, entretenimento e na indústria de alimento. O uso crescente de plástico e seu descarte não adequado têm contribuído para o acúmulo deste detrito no meio ambiente, em especial nos oceanos onde tendem a acumular. Dentre os detritos de plástico de maior importância atualmente estão os microplásticos, que são partículas de plástico de tamanho entre 1 μm e 5 mm. Os principais riscos que os microplásticos oferecem são sua grande capacidade de persistência e dispersão no am

APA, Harvard, Vancouver, ISO, and other styles

28

Sabienski, Lina. "Characterization of microplastics in wastewater." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-86249.

Full text

Abstract:

This study aims to detect how many microplastics and what kind are released from the wastewater treatment plant (WWTP) Skebäck, in Örebro. The study was limited to the analysis of three filters with 50 μm mesh size and one filter with 300 μm mesh size. The samples were taken at different times, two in the fall of 2019 and one in the spring of 2020. Visual characterization was used for the quantification of microplastics, and a lower and upper bound was used. The lower bound represents particles that were deemed identifiable as plastic with high certainty, while the upper bound also includes pa

APA, Harvard, Vancouver, ISO, and other styles

29

Wahl, Aurélie. "Distribution et comportement de débris plastiques dans un sol agricole amendé en compost de déchets ménagers." Electronic Thesis or Diss., Rennes 1, 2022. http://www.theses.fr/2022REN1B031.

Full text

Abstract:

Les déchets plastiques s’accumulent dans tous les compartiments environnementaux, et cette présence suscite un vif intérêt de la part de la communauté scientifique. Pourtant, leur étude dans les sols n’est que très récente par rapport aux rivières et océans. Ce travail de doctorat s’est donc concentré sur le comportement des micro- et nanoplastiques et des contaminants associés issus de l’amendement en compost de déchets ménagers, enrichi en débris plastiques dans un sol agricole. Les microplastiques collectés dans le sol ont un degré d’altération avancé qui favorise la libération de petites p

APA, Harvard, Vancouver, ISO, and other styles

30

Barthelemy, Nans. "Le devenir et les conséquences écologiques de la présence de microplastiques dans les cours d'eau intermittents et éphémères." Electronic Thesis or Diss., Lyon 1, 2025. http://www.theses.fr/2025LYO10046.

Full text

Abstract:

Les microplastiques (MP) sont des particules de plastiques ayant une taille comprise entre 5 mm et 1 µm qui suscitent une importante préoccupation due à leur omniprésence sur Terre ainsi qu’aux menaces qu’ils représentent pour les écosystèmes, les organismes et la santé humaine. Les cours d’eau ne sont pas épargnés par cette pollution, mais ils ont longtemps été considérés comme de simples « tuyaux » transportant les MP vers les puits de stockages finaux que sont les écosystèmes marins. Cependant, depuis le milieu des années 2010, le nombre d’études se focalisant sur les effets de la pollution

APA, Harvard, Vancouver, ISO, and other styles

31

Touchet, Camille. "Impacts of plastics on freshwater microbial communities and their primary consumers." Electronic Thesis or Diss., Lyon 1, 2025. http://www.theses.fr/2025LYO10001.

Full text

Abstract:

Les plastiques sont des témoins matériels de l'Anthropocène en raison de leur utilisation intensive et de leur propagation à l’échelle mondiale. La mauvaise gestion des déchets plastiques, leur accumulation dans l'environnement et leur fragmentation en particules sont aujourd'hui des préoccupations majeures. La pollution plastique est très complexe en raison de la diversité de ces matériaux : ils résultent du mélange des résines polymères avec une variété d’additifs chimiques pour adapter les propriétés techniques des matériaux à leurs usages. Ces compositions chimiques spécifiques compliquent

APA, Harvard, Vancouver, ISO, and other styles

32

Sörman, Laurien Elvira. "Patching up the garbage patch: a drop in the ocean? : A comparative study examining low levels of effective multinational cooperation on plasticpollution in the Pacific Ocean." Thesis, Uppsala universitet, Statsvetenskapliga institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-295972.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Johansson, Emilia, and Emma-Helena Ericsson. "Quantification for the Flow of Microplastic Particles in Urban Environment: A Case of the Chao Phraya River, Bangkok Thailand : A Minor Field Study." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230990.

Full text

Abstract:

Plastic, including microplastic, is a common product in the society today and is starting to be more common in oceans where it can stay for a long time. Microplastic is defined usually in the size range five millimeter and smaller and together with the important Chao Phraya river in Bangkok, Thailand, the main subject of this paper is described. More clearly, the aim of this paper is to provide a first-hand quantification of microplastics flowing into the Chao Phraya River. Samples were taken at upstream, middle and downstream locations in the river with a pump-system and were then analyzed in

APA, Harvard, Vancouver, ISO, and other styles

34

Collazos, Rodriguez Kristel Yvelis, Mendoza Evania Aracelly Magariño, Sanchez Frida Alexandra Rangel, Mamani Katherine Estefany Huayta, and Egúsquiza Miguel Ricardo Herrera. "Proyecto The Green Alternative." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/652972.

Full text

Abstract:

Estamos en la era biodegradable, en los últimos años la conciencia por el cuidado y sostenibilidad ambiental ha estado en constante crecimiento. Este crecimiento ha sido proporcional con el interés de los consumidores por disminuir y reemplazar los productos plásticos derivados del polímero, con productos biodegradables y compostables que, a pesar tener precios más elevados, son atractivos para los consumidores debido a la satisfacción personal y ambiental que conlleva su compra. Este cambio en el estilo de vida del consumidor peruano se ha reflejado en el interés del Gobierno por regular

APA, Harvard, Vancouver, ISO, and other styles

35

Falcão, Plínio Martins. "Panorama da poluição costeira por pellets de plástico em praias de SP (Brasil): uma contribuição aos estudos de geografia do litoral." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-12012016-150123/.

Full text

Abstract:

O lixo marinho é um problema discutido desde a década de 1970, quando cientistas começaram a observar e quantificar materiais diversos nos mares e costas de alguns países, como por exemplo os plásticos. Nessa categoria se encontram os pellets de plástico, que constituem a matéria-prima de base para a produção da indústria mundial de insumos plásticos. Desde então o tema é tratado entre as formas de poluição marinha e costeira mais observadas. A pesquisa foi desenvolvida no litoral do Estado de São Paulo (Brasil), na qual se avaliou a presença de pellets e os mecanismos de sua distribuição, rea

APA, Harvard, Vancouver, ISO, and other styles

36

Jakobsson, Jessika. "Utveckling av enzymatisk bioremediering av PET : Användnin av ett kontextbaserat lärande i implementering av ett miljöperspektiv i gymnasieskolan." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-179647.

Full text

Abstract:

Plastic pollution is one of if not the biggest threat against earth’s ecosystems. Almost 400 million tons of plastic is produced every year and most of it is discarded outside of the recycling systems. Marine ecosystems are extra exposed due to microplastics which are plastic smaller than 5 mm. The most common type of plastic is PET. Plastic in general is very chemically stable and hard to degrade but scientists have found a bacterium named I.sakaiensis that can degrade PET with a two-enzyme system called PETase and MHETase. Due to being exo-enzymes, they have to be secreted to function, the t

APA, Harvard, Vancouver, ISO, and other styles

37

Pereira, Flávia Cabral. "Microplásticos no ambiente marinho: mapeamento de fontes e identificação de mecanismos de gestão para minimização da perda de pellets plásticos." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/21/21134/tde-30032015-150240/.

Full text

Abstract:

Atualmente, a poluição marinha por microplásticos é uma grande preocupação ambiental, considerando principalmente a capacidade de dispersão e resistência à degradação que estes materiais possuem. A matéria prima plástica é normalmente comercializada na forma de \"pellets\", grânulos com cerca de 5 mm de diâmetro, que são encontrados em ambientes marinhos e costeiros de todo mundo, inclusive do Brasil. Estes podem ser perdidos nas etapas pré-consumo da cadeia produtiva dos plásticos e chegar direta ou indiretamente ao mar. Embora possam causar impactos ambientais e, eventualmente à saúde humana

APA, Harvard, Vancouver, ISO, and other styles

38

Fransson, Lovisa. "Wasting our future by wasting the Sea : How to combat marine pollution from land-based sources on international and regional level." Thesis, Uppsala universitet, Juridiska institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-409779.

Full text

Abstract:

In the United Nations Convention on the Law of the Sea, the environmental protection of the marine environment was first addressed in a comprehensive manner on an international level. However, the Convention distinguishes between four different sorts of pollution depending on which source the pollution originates from. Still, one of these sources play a more crucial role in the protection of the marine environment than the other since that source is estimated to stand for 80 percent of all the marine pollution; namely marine pollution from land-based sources. As the throw-away culture has led

APA, Harvard, Vancouver, ISO, and other styles

39

Dussud, Claire. "Caractérisation des communautés microbiennes associées à la colonisation des déchets plastiques en mer." Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066254.

Full text

Abstract:

La prise de conscience récente de la menace qui pèse sur les océans, réceptacle final de la pollution plastique, a donné lieu à une effervescence dans le domaine scientifique. On estime que plus de 5,25 milliards de particules plastiques flottent dans les océans. Ces travaux de thèse s’inscrivent dans le cadre de cette préoccupation environnementale de premier ordre, en apportant de nouvelles connaissances sur le compartiment bactérien qui se développe sur les débris plastiques en mer, appelé « plastisphère ». L’analyse des prélèvements effectués pendant l’expédition Tara-Méditerranée a permis

APA, Harvard, Vancouver, ISO, and other styles

40

Jacquin, Justine. "Ecotoxicologie microbienne des plastiques en mer : colonisation et biodégradation par la plastisphère." Electronic Thesis or Diss., Sorbonne université, 2020. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2020SORUS104.pdf.

Full text

Abstract:

De nos jours, les déchets plastiques ont envahi l’ensemble des écosystèmes marins du monde en n’épargnant aucune zone. La demande mondiale de plastique ne cesse de croitre d’année en année, malgré l’impact dramatique qu’il provoque sur l’environnement lorsqu’il est laissé dans la nature. On estime que chaque année entre 4.8 et 12.7 millions de tonnes de plastiques finissent dans les océans. Les travaux de cette thèse s’inscrivent dans le cadre de cette urgence environnementale, en permettant de mieux identifier les biofilms bactériens attachés aux différents plastiques (« plastisphère) et de m

APA, Harvard, Vancouver, ISO, and other styles

41

Dussud, Claire. "Caractérisation des communautés microbiennes associées à la colonisation des déchets plastiques en mer." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066254/document.

Full text

Abstract:

La prise de conscience récente de la menace qui pèse sur les océans, réceptacle final de la pollution plastique, a donné lieu à une effervescence dans le domaine scientifique. On estime que plus de 5,25 milliards de particules plastiques flottent dans les océans. Ces travaux de thèse s’inscrivent dans le cadre de cette préoccupation environnementale de premier ordre, en apportant de nouvelles connaissances sur le compartiment bactérien qui se développe sur les débris plastiques en mer, appelé « plastisphère ». L’analyse des prélèvements effectués pendant l’expédition Tara-Méditerranée a permis

APA, Harvard, Vancouver, ISO, and other styles

42

Chapron, Leila. "Response of cold-water corals to global change in the Mediterranean Sea : from the molecular to the reef scale." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS590.

Full text

Abstract:

Les coraux d’eau froide tels que Lophelia pertusa et Madrepora oculata, deux espèces ingénieures cosmopolites, sont d’important constructeurs de récifs, qui abritent une riche biodiversité. Toutefois, ces coraux sont menacés par la pollution et le changement climatique, et ce de manière plus importante en Méditerranée. Des expériences menées in situ au cours de cette thèse révèlent que les deux espèces ont des préférences d’habitat différentes, avec l’environnement moins profond étant plus favorable à M. oculata. Les paramètres hydrologiques influencent la croissance des coraux, sans doute en

APA, Harvard, Vancouver, ISO, and other styles

43

Roos, Lundström Frida, and Anna Mårtensson. "The Journey of Plastic trough Oceans : A study on quantifying micro plastic particles in ocean outside Costa Rican west coast." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28822.

Full text

Abstract:

Since 1950, the plastic production has increased radically from 1.5 to 280 million tons in 2012. The increased production of plastic has led to oceans becoming more polluted than ever. Micro plastic particles originate from large floating plastic debris by undergoing degradation caused by UV-radiation. Due to their small size, density and colour micro plastic particles resemble marine organisms’ natural prey and are therefore ingested. This report discuss the hypotheses that there are micro plastic particles present in oceans outside of the Costa Rican west coast (hypothesis 1), that the locat

APA, Harvard, Vancouver, ISO, and other styles

44

Dris, Rachid. "First assessement of sources and fate of macro and micro plastics in urban hydrosystems : Case of Paris megacity." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1108/document.

Full text

Abstract:

Le risque environnemental lié à la présence de plastiques dans les milieux aquatiques a été suggéré, pour le milieu marin, dès les années 1970. Même s’il reste incomplètement cerné (d’un point de vue écotoxicologique essentiellement), il ressort de la littérature qu’il est significatif. Même si certains travaux suggèrent qu’une grande partie de ces plastiques provient des eaux continentales, il n’existe aujourd’hui peu d’étude sur les niveaux d’imprégnation des milieux aquatiques en milieu continental et aucune à l’échelle des bassins versants urbains pour préciser l’importance des différentes

APA, Harvard, Vancouver, ISO, and other styles

45

Delaeter, Camille. "Impact des lixiviats de bioplastiques et plastiques conventionnels sur les organismes benthiques intertidaux : une approche comportementale." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR065.

Full text

Abstract:

Le comportement joue un rôle crucial dans la survie des organismes en leur permettant de s'adapter à leur environnement particulièrement variable. De nos jours, les réponses comportementales des organismes aux changements environnementaux doivent faire face à des défis sans précédents en raison des changements rapides et néfastes provoqués par l'ère Anthropique. En particulier, la pollution plastique se distingue comme l'une des préoccupations les plus pressantes dans les habitats marins. Au-delà des dommages physiques évidents, les plastiques peuvent libérer un cocktail nocif de molécules chi

APA, Harvard, Vancouver, ISO, and other styles

46

César, Maria Elda Ferreira. "Biodegradação da blenda poli (ε-caprolactona) e amido de milho adipatado, em diferentes granulometrias, incubada em dois solos." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-02072007-094600/.

Full text

Abstract:

A constatação do crescente acúmulo de lixo, proveniente de plásticos sintéticos que agridem o ecossistema, principalmente o solo, devido ao longo tempo de permanência no ambiente, levou à idéia de desenvolvimento de plásticos biodegradáveis para substituição parcial dos plásticos de origem petroquímica. No presente trabalho, conduzido em laboratório, analisouse a biodegradação da blenda poli (?-caprolactona) e amido de milho adipatado (PCL/A) e do polietileno. Após a etapa de biodegradação foi avaliado o impacto da adição daqueles materiais na microbiota do solo e testada a toxicidade do plást

APA, Harvard, Vancouver, ISO, and other styles

47

Hesse, Almut. "Entwicklung immunchemischer Methoden zur Spurenanalytik der Sprengstoffe Nitropenta und Trinitrotoluol." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2017. http://dx.doi.org/10.18452/17773.

Full text

Abstract:

Der Sprengstoff PETN ist äußerst schwer zu detektieren. Ein verbesserter anti-PETN-Antikörper wurde durch Anwendung des Bioisosterie-Konzepts entwickelt. Diese polyklonalen IgGs sind sehr selektiv und sensitiv. Die Nachweisgrenze des ELISAs beträgt 0,15 µg/L. Der Messbereich des Immunoassays liegt zwischen 1 und 1000 µg/L. Die Antikörper sind recht pH-stabil als auch robust gegen Lösungsmittelzusätze. Für die Umweltanalytik von TNT wurde eine HPLC-kompatible Affinitätssäule mit porösem Glas als Trägermaterial hergestellt. Um die anti-TNT-Antikörper selektiv aus den TNT-Seren zu isolieren, wur

APA, Harvard, Vancouver, ISO, and other styles

48

Pavier, Claire. "Oxypropylation de la pulpe de betterave à sucre et utilisation des polyols obtenus pour la préparation de nouveaux matériaux polyuréthanes." Grenoble INPG, 1998. http://www.theses.fr/1998INPG0041.

Full text

Abstract:

L'industrie sucriere, basee sur la betterave a sucre, donne une quantite importante de pulpe, un dechet dont il n'a pas encore ete trouve d'utilisation en tant que source de materiaux. Cette pulpe de betterave est compose essentiellement de polysaccharides et est particulierement riche en fonctions hydroxyles. Alors que l'oxypropylation de la cellulose, de la lignine et plus recemment du chitosane, aient ete etudiees, aucune investigation equivalente sur la pulpe de betterave n'a ete conduite avant ce travail. Le but de cette etude a ete de transformer un solide insoluble dans tous les solvant

APA, Harvard, Vancouver, ISO, and other styles

49

Len, Lo Li, and 羅莉倫. "Marine plastic pollution." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/91834366276964520868.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

LIU, WEI-CHENG, and 劉威誠. "Discuss about Plastic : Poster Research on Plastic Pollution Issues." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/fu57et.

Full text

Abstract:

碩士<br>崑山科技大學<br>視覺傳達設計研究所<br>106<br>Invention of plastics adds comfort to our everyday lives. Plastics are successfully used in all kinds of products that make variety of interventions be created and presented and also are one of excellent materials to create modern crafts, such as architecture materials, daily life’s electronic products, and daily utility. Mass production of plastic objects changes relationship of people and objects. Plastic objects make life more convenient, but at the same time increase people’s desires and demands to objects. Even if in recent years plastics has gradually

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!