Highlights
• Microplastics in Lake Paldang sediments were analyzed by FT-IR with microscope.
• The most abundant MPs were PE, PTFE, and PP with the size ranges of 45-100 µm.
• MPs such as PP, PE and polyester were found in all sediment depths.
• Only PTFE was primarily found in the surface layer of sediment.
• Distribution of MPs was according to seasonal variations with larger inflows.