Investigation of Microplastic Pollution in Coastal Waters: Sources, Distribution, and Impacts on Marine Ecosystems.

Thesis Abstract

Abstract
Microplastic pollution in coastal waters has emerged as a significant environmental concern due to its widespread presence and potential detrimental impacts on marine ecosystems. This thesis focuses on investigating the sources, distribution, and impacts of microplastics in coastal waters to enhance our understanding of this pressing issue. The study employs a multidisciplinary approach that combines field surveys, laboratory analyses, and ecological assessments to comprehensively assess the extent of microplastic pollution and its effects on marine organisms. The introduction provides a background of microplastic pollution, highlighting the increasing global production and improper disposal of plastic materials that ultimately lead to the contamination of marine environments. The problem statement emphasizes the urgent need to address this issue to safeguard marine biodiversity and ecosystem health. The objectives of the study include identifying the primary sources of microplastics, mapping their distribution patterns in coastal waters, and evaluating their impacts on marine organisms and ecosystems. The literature review synthesizes existing research on microplastic pollution, covering topics such as the types and sizes of microplastics, their transport mechanisms in aquatic environments, and the potential ecological consequences of their presence. The chapter critically examines current methodologies for microplastic detection and quantification, providing a comprehensive overview of the state-of-the-art techniques used in the field. The research methodology details the sampling procedures, analytical techniques, and data analysis methods employed in the study. It outlines the sampling sites selected for field surveys, the sampling equipment used for collecting water and sediment samples, and the laboratory procedures for microplastic identification and quantification. The chapter also describes the ecological assessments conducted to evaluate the impacts of microplastics on key marine species and habitats. The discussion of findings presents the results of the field surveys, laboratory analyses, and ecological assessments, highlighting the sources, distribution patterns, and ecological effects of microplastics in coastal waters. The chapter elucidates the key findings of the study, including the prevalence of microplastics in different marine compartments, the potential pathways of exposure for marine organisms, and the implications for ecosystem health and functioning. The conclusion summarizes the main findings of the study and their implications for environmental management and policy development. It underscores the importance of addressing microplastic pollution through targeted mitigation measures and enhanced public awareness campaigns. The thesis contributes to the growing body of knowledge on microplastic pollution in coastal waters and provides valuable insights for future research and conservation efforts aimed at protecting marine ecosystems from plastic contamination. Keywords Microplastic pollution, Coastal waters, Marine ecosystems, Sources, Distribution, Impacts, Environmental management.