摘要
为探究内陆湖冰封期冰盖中微塑料的污染情况及其潜在风险,在岱海冰封期进行取样,采用显微镜观察、冗余性分析和污染物风险指数评价等方法,分析冰封期冰盖中微塑料的赋存特征以及与环境因子的关系,并进行风险评价.结果表明,岱海冰盖中微塑料丰度为283~1055n/L,主要检出形态与颜色分别为纤维状与黑色,粒径以<0.5mm为主;垂直方向上,上层冰与下层冰的微塑料丰度高于中层冰.微塑料丰度与总氮、氨氮与盐度质量浓度呈显著相关,与其他环境因子关系并不显著.风险评价结果显示,冰封期岱海中微塑料污染程度已达中度污染,其潜在风险应引起重视.
In order to investigate the contamination and potential risks of microplastics in the ice cap of inland lakes,microplastics were sampled during the ice-covered period of the Daihai Lake,Inner Mongolia,northwest.The relationship between microplastics and environmental factors was analyzed by microscopic observation,redundancy analysis and pollutant risk index evaluation.The results showed that the abundance of microplastics in the Daihai ice cap ranged from 283 to 1055n/L,and the main detectable forms and colors were fibrous and black,and the particle size was mainly<0.5mm.Vertically,the abundance of microplastics in the upper and lower ice layers was higher than that in the middle ice layer.The abundance of microplastics was significantly correlated with the concentration of total nitrogen,ammonia nitrogen and salinity,but not with other environmental factors.The risk assessment results showed that the microplastics pollution in the Daihai Lake during the ice-covered period has reached a moderate level,and the potential risk should be taken seriously.
作者
王志超
窦雅娇
周鑫
杨文焕
姚植
李卫平
WANG Zhi-chao;DOU Ya-Jiao;ZHOU Xin;YANG Wen-huan;YAO Zhi;LI Wei-ping(School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou 014010,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2022年第2期889-896,共8页
China Environmental Science
基金
国家自然科学基金资助项目(42007119)
国家重点研发项目(2019YFC0409204)
内蒙古科技大学创新基金资助项目(2019QDL-B42)
内蒙古自治区自然科学基金资助项目(2019BS05004,2020MS02017)。
关键词
岱海
冰封期
微塑料
环境因子
风险评价
Daihai Lake
ice-covered period
microplastics
environmental factors
risk assessment
作者简介
王志超(1988-),男,山东德州人,副教授,博士,从事环境污染控制与生态修复.发表论文30余篇;责任作者:李卫平,教授,sjlwp@163.com。
