Thesis Abstract

**Abstract
** Microplastic pollution in freshwater ecosystems has emerged as a significant environmental concern globally. This study aims to assess the extent of microplastic contamination in freshwater environments, investigate its impacts on aquatic ecosystems and human health, and propose effective mitigation strategies. The research methodology involves field sampling, laboratory analysis, and data interpretation to achieve these objectives. Chapter One provides an introduction to the study, presenting the background, problem statement, research objectives, limitations, scope, significance, and structure of the thesis. The chapter also includes a definition of key terms related to microplastic pollution and freshwater ecosystems. Chapter Two offers a comprehensive literature review focusing on ten key aspects related to microplastic pollution in freshwater ecosystems. This includes sources of microplastics, transport mechanisms, ecological impacts, human health implications, and current mitigation strategies. Chapter Three outlines the research methodology, including sample collection techniques, laboratory analysis methods, data processing, statistical analysis, and quality control measures. The chapter also discusses ethical considerations and limitations of the study. Chapter Four presents a detailed discussion of the findings obtained from the fieldwork and laboratory analysis. It explores the distribution of microplastics in freshwater ecosystems, their effects on aquatic organisms, and potential risks to human health. Additionally, this chapter evaluates the effectiveness of existing mitigation strategies and proposes novel approaches to address microplastic pollution. Chapter Five concludes the thesis by summarizing the key findings, highlighting the significance of the study, and offering recommendations for future research and practical applications. The conclusion emphasizes the urgent need for collaborative efforts among scientists, policymakers, industries, and the public to combat microplastic pollution and safeguard the health of freshwater ecosystems. In conclusion, this thesis contributes valuable insights into the assessment of microplastic pollution in freshwater ecosystems, its impacts on the environment and human health, and the development of effective mitigation strategies. By addressing this pressing environmental issue, the study aims to raise awareness, inform policy decisions, and promote sustainable practices to protect freshwater ecosystems for future generations.

Thesis Overview