Research progress on biotoxicological effects and mechanism of polylactic acid microplastics and their combined pollution
SHAO Xue-chun1, HU Shuang-qing2, ZHANG Qi1, GONG Kai-lin1, FU Meng-ru1, ZHANG Wei1, PENG Cheng1,2,3
1. School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Academy of Environmental Sciences, Shanghai 200233, China; 3. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
Abstract:The toxicity effects of single exposure of polylactic acid (PLA) microplastics, as well as their combined exposure with other environmental pollutants were reviewed. Moreover, the toxicity mechanisms of PLA microplastics on organisms was further summarized. The ingestion of PLA microplastics can affect the feeding, growth, survival, reproduction and motor behavior of organisms. The combined contamination of PLA microplastics with organics and heavy metals has certain potential risks to organisms. PLA microplastics mainly damage organisms through the toxicity mechanisms of mechanical damage, oxidative stress, nerve damage and immune damage. Future studies are needed to explore the toxic effects of aged or degraded PLA microplastics, the toxicity effects and mechanisms of combined exposure to terrestrial organisms, and their impacts on global ecosystems and biogeochemical cycles. This review could provide ideas for the environmental and ecological risk assessment of PLA microplastics in the future.
邵雪纯, 胡双庆, 张琪, 龚凯林, 傅梦茹, 张卫, 彭程. 聚乳酸微塑料及其复合污染的生物毒性效应与机制研究进展[J]. 中国环境科学, 2023, 43(2): 935-945.
SHAO Xue-chun, HU Shuang-qing, ZHANG Qi, GONG Kai-lin, FU Meng-ru, ZHANG Wei, PENG Cheng. Research progress on biotoxicological effects and mechanism of polylactic acid microplastics and their combined pollution. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(2): 935-945.
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