Spatial Distribution of Microplastics in Surficial Benthic Sediment of Lake Michigan and Lake Erie

被引：82

作者：

Lenaker, Peter L. ^{[1
]}

Corsi, Steven R. ^{[1
]}

Mason, Sherri A. ^{[2
]}

机构：

[1] US Geol Survey, Upper Midwest Water Sci Ctr, Middleton, WI 53562 USA

[2] State Univ New York Fredonia, Dept Chem & Biochem, Fredonia, NY 14063 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2021年 / 55卷 / 01期

关键词：

PELAGIC PLASTIC POLLUTION; MARINE-ENVIRONMENT; SURFACE WATERS; GREAT-LAKES; NORTH-SEA; ATMOSPHERIC FALLOUT; SYNTHETIC-FIBERS; COASTAL WATERS; YELLOW SEA; RIVER;

D O I：

10.1021/acs.est.0c06087

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The spatial distribution, concentration, particle size, and polymer compositions of microplastics in Lake Michigan and Lake Erie sediment were investigated. Fibers/lines were the most abundant of the five particle types characterized. Microplastic particles were observed in all samples with mean concentrations for particles greater than 0.355 mm of 65.2 p kg(-1) in Lake Michigan samples (n = 20) and 431 p kg(-1) in Lake Erie samples (n = 12). Additional analysis of particles with size 0.12500.3549 mm in Lake Erie resulted in a mean concentration of 631 p kg(-1). The majority of polymers in Lake Michigan samples were poly(ethylene terephthalate) (PET), high-density polyethylene (HDPE), and semisynthetic cellulose (S.S. Cellulose), and in Lake Erie samples were S.S. Cellulose, polypropylene (PP), and poly(vinyl chloride) (PVC). Polymer density estimates indicated that 85 and 74% of observed microplastic particles have a density greater than 1.1 g cm(-3) for Lake Michigan and Lake Erie, respectively. The current study provided a multidimensional dataset on the spatial distribution of microplastics in benthic sediment from Lake Michigan and Lake Erie and valuable information for assessment of the fate of microplastics in the Great Lakes.

引用

页码：373 / 384

页数：12

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