Thesis Abstract

Abstract
Microplastic pollution has become a significant environmental concern globally, with freshwater ecosystems being particularly vulnerable to its adverse effects. This thesis focuses on the assessment of microplastic pollution in freshwater ecosystems, aiming to provide insights into the sources, distribution, and impacts of microplastics on aquatic environments. The study employs a multidisciplinary approach, integrating field surveys, laboratory analyses, and literature reviews to comprehensively evaluate the extent of microplastic contamination in freshwater systems. The introductory chapter sets the stage by outlining the background of the study, highlighting the problem statement, research objectives, limitations, scope, significance, structure, and defining key terms related to microplastic pollution. Chapter two presents a detailed literature review encompassing ten key areas related to microplastic pollution in freshwater ecosystems, including sources of microplastics, transport mechanisms, ecological impacts, and current assessment methods. Chapter three delves into the research methodology, detailing the sampling design, sample collection and processing techniques, analytical methods for microplastic identification and quantification, quality control measures, data analysis approaches, and ethical considerations. The chapter also discusses the challenges and limitations encountered during the research process and strategies employed to address them. Chapter four presents a comprehensive discussion of the findings, integrating results from field surveys and laboratory analyses to assess the spatial distribution, abundance, composition, and characteristics of microplastics in freshwater ecosystems. The chapter also explores the potential ecological implications of microplastic pollution on aquatic organisms, food webs, and ecosystem health, highlighting the need for effective mitigation strategies. The concluding chapter synthesizes the key findings of the study, reiterates the research objectives and outcomes, and provides recommendations for future research directions and policy interventions aimed at mitigating microplastic pollution in freshwater ecosystems. The thesis contributes to the growing body of knowledge on microplastic pollution and underscores the urgent need for concerted efforts to address this pressing environmental issue to safeguard the health and integrity of freshwater ecosystems. Keywords Microplastic pollution, freshwater ecosystems, assessment, sources, distribution, impacts, methodology, findings, implications, mitigation.

Thesis Overview