Influence of polyethylene microplastic beads on the uptake and localization of silver in zebrafish (Danio rerio)

被引：198

作者：

Khan, Farhan R. ^{[1
]}

Syberg, Kristian ^{[1
]}

Shashoua, Yvonne ^{[2
]}

Bury, Nicolas R. ^{[3
]}

机构：

[1] Roskilde Univ, Dept Environm Social & Spatial Change ENSPAC, DK-4000 Roskilde, Denmark

[2] Natl Museum Denmark, Dept Conservat, DK-2800 Brede, Kongens Lyngby, Denmark

[3] Kings Coll London, Nutr Sci Div, London SE1 9NH, England

来源：

ENVIRONMENTAL POLLUTION | 2015年 / 206卷

关键词：

Microplastics; Scrubbers; Adsorbed pollutants; Vector-effect; Dietary metal; PLASTIC RESIN PELLETS; MARINE-ENVIRONMENT; POLLUTION; TOXICITY; WATER; ADSORPTION; BIOACCUMULATION; NANOPARTICLES; DISSOLUTION; PHYSIOLOGY;

D O I：

10.1016/j.envpol.2015.06.009

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study aimed to determine whether the uptake and localization of Ag in zebrafish was affected by the presence of polyethylene microplastic beads (PE MPBs). Zebrafish were exposed to 1 mu g Ag L-1 (radio-labelled with Ag-110m) for 4 and 24 h in the presence or absence of PE MPBs (10,100 or 1000 MPBs mL(-1)), and one treatment in which MPBs (1000 MPBs mL(-1)) were incubated with Ag to promote adsorption. The presence of MPBs, at any of the tested doses, had no effect on the uptake or localization of Ag. However, exposure to the Ag-incubated MPBs (similar to 75% of the Ag bound to MPBs) significantly reduced Ag uptake at both time points and also significantly increased the proportion of intestinal Ag. This study demonstrates that microplastics can alter the bioavailability and uptake route of a metal contaminant in a model fish species. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：73 / 79

页数：7

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