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

TY - JOUR

T1 - Influence of polyethylene microplastic beads on the uptake and localization of silver in zebrafish (Danio rerio)

AU - Khan, Farhan R

AU - Syberg, Kristian

AU - Shashoua, Yvonne

AU - Bury, Nicolas R.

N1 - Copyright © 2015 Elsevier Ltd. All rights reserved.

PY - 2015/11

Y1 - 2015/11

N2 - 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 μg Ag L(-1) (radiolabelled with (110m)Ag) 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 (∽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.

AB - 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 μg Ag L(-1) (radiolabelled with (110m)Ag) 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 (∽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.

U2 - 10.1016/j.envpol.2015.06.009

DO - 10.1016/j.envpol.2015.06.009

M3 - Article

C2 - 26142753

SN - 0269-7491

VL - 206

SP - 73

EP - 79

JO - ENVIRONMENTAL POLLUTION

JF - ENVIRONMENTAL POLLUTION

ER -