Research Progress of Microplastics in Freshwater Sediments in China.

Microplastic pollution has attracted more and more people's attention, and it exists widely in our living environment. Microplastics are difficult to be degraded, most of them migrate from the land to the water, and finally deposit in the sediment. They are easy to have a great impact on water bodies and aquatic organisms, and even affect the daily life of human beings. Based on the research literature on microplastics in recent years, this paper reviews the research progress of microplastics in freshwater sediments in China, discusses several commonly used methods of sampling, separation, and detection of microplastics in freshwater sediments, summarizes the distribution characteristics of microplastics in freshwater sediments in China, analyzes the toxicological effects of microplastics, and introduces the degradation methods of microplastics. This study will provide valuable reference for further study of microplastics in freshwater environment in the future.