摘要
本文综述了光氧化降解、热降解、物理磨损和生物降解对微塑料老化过程的影响,列举了相关实验室研究方法及关键结论.在此基础上总结了微塑料老化后颗粒态、溶解态产物的检测方法,分析了微纳米/塑料自身毒性及污染物携带效应、浸出液对水生生态系统及生物体的影响.最后展望了未来研究应考虑多重因素缩小与自然环境的差距,筛选降解功能的菌群治理微塑料污染,建立产物监测分析的技术方法标准,揭示产物的毒性机制.
Effects of photo-degradation,thermal-degradation,physical abrasion and biodegradation on the aging process of microplastics were reviewed.The relevant laboratory research methods and the key conclusions were discussed.Furthermore,the detection methods of the particulate and dissolved leachates of aged microplastics were summarized,and the toxicity of micro/nano-plastics,their pollutant carrying effects and the impacts of plastic’s leachates on aquatic ecosystem and organisms were analyzed.Finally,the future research focuses were proposed.It is suggested that future research should take into account the multiple factors to simulate the natural environment,screen the plastic degrading microbes,establish the technical and methodological standards for plastic’s leachates,and reveal the toxic mechanism of leachates from microplastics.
作者
苗令占
邓肖雅
杨铮
李婉逸
侯俊
MIAO Ling-zhan;DENG Xiao-ya;YANG Zheng;LI Wan-yi;HOU Jun(Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes,Ministry of Education,College of Environment,Hohai University,Nanjing 210098,China;Yunnan branch of Guangzhou Urban Construction Planning and Design Institute Co.,Ltd.,Kunming 650011,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2023年第11期6156-6171,共16页
China Environmental Science
基金
西藏科技厅重点研发计划项目(XZ202101ZY0016G)。
关键词
微塑料
老化
检测方法
浸出液
环境效应
microplastics
aging
analytical methods
leachate
environmental effect
