Microplastics pollution in water and sediment matrices of the old Brahmaputra River, bangladesh: an ecological risk appraisal of an urban river

Key Points

• Microplastics pollution poses significant ecological risks to aquatic ecosystems in urban rivers.
• Concentrations of microplastics, particularly in sediment matrices, were notably high at multiple sites surveyed.
• Observational analysis across the old Brahmaputra River assessed sediment and water for microplastic contamination.
• Highlighting the need for comprehensive management strategies to address and mitigate microplastics pollution.