This article summarizes the occurrence and migration of microplastics in overlying water and sediments,and analyzes the impact of microplastics on the morphology and physiological characteristics of algae and aquatic plants in freshwater.The ecological toxicity of microplastics to primary and advanced consumers is described,and their occurrence and migration along the food chain direction are analyzed.A comprehensive analysis is given about the impact of microplastics on the environment and organisms in freshwater multiple environmental media,which can provide scientific ideas and theoretical basis for revealing the occurrence and migration patterns of microplastics at different nutrient levels in freshwater multiple environmental biological media and their related mechanisms.
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