Analyzing the Impact of Microplastic Pollution on Coastal Sediment Composition and Geochemistry

1. Introduction 1.1. Background of Microplastic Pollution 1.2. Scope of Study 1.3. Objectives and Research Questions 1.4. Methodological Overview 2. Microplastic Sources and Distribution 2.1. Primary and Secondary Sources 2.2. Transport Pathways 2.3. Spatial Distribution Patterns 3. Coastal Sediment Composition 3.1. Types of Coastal Sediments 3.2. Physical Characteristics 3.3. Biological Influence on Sediments 4. Geochemical Properties of Sediments 4.1. Mineral Composition 4.2. Organic Matter Content 4.3. Chemical Interactions 5. Interactions Between Microplastics and Sediments 5.1. Adhesion and Deposition Mechanisms 5.2. Physical and Chemical Impacts 5.3. Alteration of Geochemical Properties 6. Analytical Methods 6.1. Sampling Techniques 6.2. Laboratory Analysis of Microplastics 6.3. Geochemical Testing Procedures 7. Results and Discussion 7.1. Microplastic Concentration in Sediments 7.2. Changes in Sediment Composition 7.3. Geochemical Alterations 8. Conclusions and Recommendations 8.1. Summary of Findings 8.2. Implications for Coastal Management 8.3. Future Research Directions