摘要
近年来,随着对微塑料生态毒理效应以及其人体健康影响的研究,淡水环境中的微塑料污染已经愈发受到重视。文中选择30%H_(2)O_(2)的消解液和饱和溶液NaCl的浮选剂对西安城区灞河河段中的微塑料进行分离提取。结果表明:与国内报道的其他地区淡水环境相比,西安城区灞河河段中微塑料污染较为严重,沉积物中的数量(17.12个/kg)是表层水体的2~3倍,且尺寸较大,主要材质均为对苯二甲酸与乙二醇的缩聚物(PET)、聚乙烯(PE)和聚丙烯(PP),形态以纤维状、碎片状为主,多呈现透明、紫、蓝、黑色。结合各取样点周围环境分析各类型微塑料的主要来源,为西安城区灞河河段微塑料的污染风险管控和生态环境治理提供有效的信息指导。
In recent years,with the study of ecotoxicological effect and its influence on human health in microplastics,microplastics pollution in freshwater environment has been paid more and more attention.In this paper,30%H_(2)O_(2) digestion solution and saturated NaCl flotation agent were selected to separate and extract microplastics in Xi'an City section of Bahe River.The results showed that,compared with the freshwater environment reported in other areas at home,the pollution of microplastics in Xi'an City section of Bahe River was more serious,and the quantity(17.12 ind/kg)in the sediments was 2~3 times that of the upper layer of water body and its size was larger.The main materials were polyethylene terephtholate(PET),polyethylene(PE)and polypropylene(PP),and their shapes were mainly fibrous and fragmented,mostly transparent,purple,blue and black.Combining with the surrounding environment of each sampling point,this paper analyzed the main sources of various types of microplastics,and provided effective information guidance for pollution risk control and ecological environment control of microplastics in Xi'an City urban reaches of Bahe River.
作者
黄毅
武军旭
米峰江
高凡
赵平歌
张炜垲
HUANG Yi;WU Junxu;MI Fengjiang;GAO Fan;ZHAO Pingge;ZHANG Weikai(School of Civil&Architecture Engineering,Xi'an Technological University,Xi'an 710021,China;Xi'an Municipal Facilities Administration,Xi'an 710038,China;China Machinery Engineering<Xi'an>Qiyuan Consulting Design Co.,Ltd.,Xi'an 710021,China)
出处
《净水技术》
CAS
2022年第11期137-143,共7页
Water Purification Technology
基金
省级大学生创新创业训练计划项目(S202210702056)。
关键词
微塑料
淡水环境
粒径分布
表层水体
沉积物
microplastics
freshwater environment
particle size distribution
upper layer of water body
sediment
