贾芳丽,
涂海峰,
孙翠竹,
李锋民
中国海洋大学近海环境污染控制研究所 海洋环境与生态教育部重点实验室, 青岛 266100
作者简介: 李富云(1991-),女,硕士,研究方向为环境生态学,E-mail:2289563720@qq.com.
基金项目: 国家自然科学基金(No.51378480)；国家自然科学基金委员会—山东省人民政府联合资助海洋科学研究中心项目(U1406403)；973课题(2015CB453301)中图分类号: X171.5
Environmental Behavior and Ecological Effects of Microplastics in the Ocean
Li Fuyun,Jia Fangli,
Tu Haifeng,
Sun Cuizhu,
Li Fengmin
College of Environmental Science and Engineering, Ocean University of China, Key Laboratory on Marine Environment and Ecology of Ministry of Education, Qingdao 266003, China
CLC number: X171.5
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摘要:微塑料一般指直径小于5 mm的微小型塑料颗粒或碎片，海洋中常见的微塑料类型主要包括聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯等。由于形状、颜色多变，分子量大，结构稳定，粒径范围与浮游植物相近，海洋中的微塑料很容易对浮游植物、浮游动物和其他海洋动物等产生影响。微塑料还可以为病毒、细菌提供附着载体，影响浮游植物分布，进入海洋生物消化道或进一步转移到组织中对机体产生毒性效应，甚至通过捕食作用沿食物链传递，对高等动物及人类健康造成威胁。此外，微塑料可以作为海水中痕量化学物质的吸附载体，对生物产生联合毒性。根据目前对微塑料的研究进展情况，未来应加强对海洋微塑料分离、鉴定技术的研发以及海洋微塑料的生物毒性效应和生物传递效应机制等问题的研究。
关键词: 微塑料/
海洋环境/
生物毒性/
生物传递/
联合毒性
Abstract:Microplastics (MPs) are small plastic particles or debris in the environment that are generally smaller than 5 mm in diameter. The main types of microplastics in ocean are polyethylene, polypropylene, polystyrene and polyvinyl chloride, etc. It is easy to have effects on phytoplankton, zooplankton and other marine animals related to its varied color and shape, high molecular weight, stable structure, similar size to phytoplankton. Microplastics can provide habitats to viruses and bacteria, affect the distribution of phytoplankton, enter the digestive tract or further transfer to the tissues of marine life and lead to toxic effects, and even threat human health through the food chain. In addition, microplastics can adsorb trace chemicals in seawater, resulting in combined toxic effects on organisms. Based on current research progress of microplastics, the following research fields should be focused on: 1) building highly efficient and accurate separation and identification techniques, 2) exploring mechanisms of biological toxicity and biological transportation effects on marine life.
Key words:microplastic/
marine environment/
biotoxicity/
combined toxicity/
biological transportation.
