Microplastics in urban runoff: Global occurrence and fate

被引：101
作者：
Wang C. [1 ]
O'Connor D. [2 ]
Wang L. [1 ]
Wu W.-M. [3 ]
Luo J. [4 ]
Hou D. [1 ]
机构：
[1] School of Environment, Tsinghua University, Beijing
[2] School of Real Estate and Land Management, Royal Agricultural University, Cirencester
[3] Department of Civil and Environmental Engineering, William & Cloy Codiga Resource Recovery Center, Center for Sustainable Development & Global Competitiveness, Stanford University, Stanford, California
[4] School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, 30332-0355, GA
来源：
Water Research | 2022年 / 225卷
基金：
中国国家自然科学基金;
关键词：
Global occurrence; Microplastics; Pollution; Sink; Urban runoff;
D O I：
10.1016/j.watres.2022.119129
中图分类号：
学科分类号：
摘要：
Public concerns on microplastic (MP) pollution and its prevalence in urban runoff have grown exponentially. Huge amounts of MPs are transported from urban environments via surface runoff to different environment compartments, including rivers, lakes, reservoirs, estuaries, and oceans. The global concentrations of MPs in urban runoff range from 0 to 8580 particles/L. Understanding the sources, abundance, composition and characteristics of MPs in urban runoff on a global scale is a critical challenge because of the existence of multiple sources and spatiotemporal heterogeneity. Additionally, dynamic processes in the mobilization, aging, fragmentation, transport, and retention of MPs in urban runoff have been largely overlooked. Furthermore, the MP flux through urban runoff into rivers, lakes and even oceans is largely unknown, which is very important for better understanding the fate and transport of MPs in urban environments. Here, we provide a critical review of the global occurrence, transport, retention process, and sinks of MPs in urban runoff. Relevant policies, regulations and measures are put forward. Future global investigations and mitigation efforts will require us to address this issue cautiously, cooperating globally, nationally and regionally, and acting locally. © 2022 Elsevier Ltd
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