Thesis Abstract

Abstract
Microplastics, small plastic particles less than 5mm in size, have become a significant environmental concern globally. This study focuses on the assessment of microplastic pollution in freshwater ecosystems and its impact on aquatic organisms. The presence of microplastics in freshwater systems poses a threat to the health of aquatic organisms and the overall ecosystem. This research aims to investigate the sources, distribution, and abundance of microplastics in freshwater environments and to assess their potential impacts on aquatic organisms. The first chapter provides an introduction to the research topic, presenting the background of the study, problem statement, objectives, limitations, scope, significance, structure of the thesis, and definitions of key terms. The second chapter consists of a comprehensive literature review covering ten key aspects related to microplastic pollution in freshwater ecosystems. This includes discussions on the sources of microplastics, their distribution in water bodies, the potential ecological impacts, and current mitigation strategies. Chapter three outlines the research methodology employed in this study, detailing the sampling techniques, laboratory analysis methods, and data interpretation processes. The methodology section also includes information on the study area, sampling sites, and the selection criteria for aquatic organisms. Additionally, the chapter discusses the statistical analysis techniques used to analyze the data collected during the research. In chapter four, the findings of the study are presented and discussed in detail. This includes the quantification of microplastics in water samples, sediment samples, and aquatic organisms, as well as the identification of the most common types of microplastics found. The chapter also explores the potential impacts of microplastic pollution on aquatic organisms, such as ingestion, bioaccumulation, and toxicity. The final chapter, chapter five, provides a comprehensive summary of the research findings and conclusions drawn from the study. The implications of the research findings for freshwater ecosystem management and conservation are discussed, along with recommendations for future research in this field. Overall, this study contributes to the understanding of microplastic pollution in freshwater ecosystems and highlights the urgent need for effective mitigation measures to protect aquatic organisms and ecosystem health. Keywords Microplastics, Freshwater Ecosystems, Aquatic Organisms, Pollution Assessment, Environmental Impact

Thesis Overview