上海市松江地区河道微塑料分布特征  

Distribution characteristics of microplastics in urban rivers of Songjiang District,Shanghai

作　　者：郑亮[1] 刘一萌 李晓辰 曹译文 陈宜昊 唐洁君 隋延鸣[1,2] ZHENG Liang;LIU Yimeng;LI Xiaochen;CAO Yiwen;CHEN Yihao;TANG Jiejun;SUI Yanming(East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China;Yancheng Institute of Technology,Yancheng Jiangsu 244001,China;No.7 Middle School of Songjiang District,Shanghai 201600,China)

机构地区：[1]中国水产科学研究院东海水产研究所,上海200090 [2]盐城工学院,江苏盐城224001 [3]上海市松江区第七中学,上海201600

出　　处：《海洋渔业》2021年第2期241-246,共6页Marine Fisheries

基　　金：国家自然科学基金项目(41706142);中央级公益性科研院所基本科研业务费(2014T12)。

摘　　要：为揭示上海松江地区河道微塑料的分布规律和影响因素,利用表层现场采样、密度悬浮法分离、光学体式镜和拉曼光谱结合的观察分析方法,研究了上海市松江区4条流经不同功能区的河道水体中微塑料的含量、粒径范围、来源及影响因素。结果表明,松江地区4条河道中微塑料含量为2~5个·m^(-3),微塑料含量与河道水径流量成线性负相关(R^(2)=0.81,P<0.05),水流较缓的河道微塑料更容易停留在水体中。河道中微塑料粒径在0.5~5.0 mm范围内,粒径较大,属于刚形成的微塑料。微塑料主要来源于人类生活塑料垃圾和工农业生产中的塑料包装。研究结果可为分析城市河道微塑料污染现状提供参考,并为进一步防控城市微塑料污染打下基础。Plastic products are widely used for their low price,light weight and convenience for carrying.Meanwhile,more and more discarded plastic trashes enter water bodies.They can break down to smaller fragments by physical and chemical factors.Plastic debris whose sizes are smaller than 5 mm can be defined as microplastics.Microplastics can be ingested by organisms that take them as size-similar food.They can be transferred to human body through food chain by bioaccumulation and cause health crisis.Though there are plenty of researches focusing on marine microplastics,little attention is paid to microplastics in urban rivers.The urban rivers are closer to human residents and are largely influenced by human activities.So to understand the status of microplastics in urban rivers is urgent for human health.Shanghai,as an international economic,financial,trade,shipping,science and technology innovation center,is with dense population and strong human activities.Located in the Yangtze River Delta area,Shanghai is in the east of China,and near the Yangtze River Estuary and the East China Sea.Songjiang District is located in the southwest of Shanghai,about 40 km away from the urban area.The main rivers are Huangpu River,Dianpu River and Sijingtang River.The industry,agriculture and tourism are relatively developed in Songjiang District,so the pillar industries are diversified.In order to reveal the distribution and influencing factors of microplastics in urban rivers in Songjiang District,Shanghai,the contents,particle size range,sources and influencing factors of microplastics in four rivers which flow through different functional areas in Songjiang District were studied by means of surface sampling,density suspension separation,optical microscope and Laman spectroscopy.Results showed that the content of microplastics in the four rivers in Songjiang area was 2-5 pieces·m^(-3),and the content of microplastics was negatively correlated with the runoff(R^(2)=0.81,P<0.05).The river with slow flow was more likely to hold the mic

关 键 词：微塑料 城市河道 分布特征 上海松江 

分 类 号：X55[环境科学与工程—环境工程]