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Microplastics Reduce Short-Term Effects of Environmental Contaminants. Part I: Effects of Bisphenol A on Freshwater Zooplankton Are Lower in Presence of Polyamide Particles.
Int J Environ Res Public Health. 2018 02 06; 15(2)IJ

Abstract

Abstract: Microplastics can have direct physical effects on organisms in freshwater systems, and are considered as vectors for absorbed environmental pollutants. It is still under discussion if microplastics are relevant pollutant vectors for uptake into aquatic organisms in comparison to further uptake pathways, e.g., via water or sediment particles. We analyzed how the presence of microplastics (polyamide particles, PA) modifies acute effects of the environmental pollutant bisphenol A (BPA) on freshwater zooplankton (Daphnia magna). Daphnids were exposed to PA particles and BPA alone, before combining them in the next step with one concentration of PA and varying concentrations of BPA. The PA particles themselves did not induce negative effects, while the effects of BPA alone followed a typical dose-dependent manner. Sorption of BPA to PA particles prior to exposure led to a reduction of BPA in the aqueous phase. The combination of BPA and PA led to decreased immobilization, although PA particles loaded with BPA were ingested by the daphnids. Calculations based on physiochemistry and equilibrium assumptions indicated lower BPA body burden of daphnids in the presence of PA particles. These results confirm model-based studies, and show that investigated microplastic concentrations are negligible for the overall pollutant uptake of daphnids with water as additional uptake pathway.

Authors+Show Affiliations

Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, D-12587 Berlin, Germany. rehse@igb-berlin.de. Center for Applied Geosciences, Eberhard Karls Universität Tübingen, Hölderlinstraβe 12, D-72074 Tübingen, Germany. rehse@igb-berlin.de.Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, D-12587 Berlin, Germany. werner.kloas@igb-berlin.de. Department of Endocrinology, Institute of Biology, Humboldt-Universität Berlin, Invalidenstraβe 110, D-10115 Berlin, Germany. werner.kloas@igb-berlin.de.Center for Applied Geosciences, Eberhard Karls Universität Tübingen, Hölderlinstraβe 12, D-72074 Tübingen, Germany. christiane.zarfl@uni-tuebingen.de.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29415519

Citation

Rehse, Saskia, et al. "Microplastics Reduce Short-Term Effects of Environmental Contaminants. Part I: Effects of Bisphenol a On Freshwater Zooplankton Are Lower in Presence of Polyamide Particles." International Journal of Environmental Research and Public Health, vol. 15, no. 2, 2018.
Rehse S, Kloas W, Zarfl C. Microplastics Reduce Short-Term Effects of Environmental Contaminants. Part I: Effects of Bisphenol A on Freshwater Zooplankton Are Lower in Presence of Polyamide Particles. Int J Environ Res Public Health. 2018;15(2).
Rehse, S., Kloas, W., & Zarfl, C. (2018). Microplastics Reduce Short-Term Effects of Environmental Contaminants. Part I: Effects of Bisphenol A on Freshwater Zooplankton Are Lower in Presence of Polyamide Particles. International Journal of Environmental Research and Public Health, 15(2). https://doi.org/10.3390/ijerph15020280
Rehse S, Kloas W, Zarfl C. Microplastics Reduce Short-Term Effects of Environmental Contaminants. Part I: Effects of Bisphenol a On Freshwater Zooplankton Are Lower in Presence of Polyamide Particles. Int J Environ Res Public Health. 2018 02 6;15(2) PubMed PMID: 29415519.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Microplastics Reduce Short-Term Effects of Environmental Contaminants. Part I: Effects of Bisphenol A on Freshwater Zooplankton Are Lower in Presence of Polyamide Particles. AU - Rehse,Saskia, AU - Kloas,Werner, AU - Zarfl,Christiane, Y1 - 2018/02/06/ PY - 2017/11/15/received PY - 2018/01/12/revised PY - 2018/02/01/accepted PY - 2018/2/9/entrez PY - 2018/2/9/pubmed PY - 2018/12/12/medline KW - acute toxicity KW - bisphenol A KW - freshwater zooplankton KW - microplastics KW - polyamide KW - vector effect JF - International journal of environmental research and public health JO - Int J Environ Res Public Health VL - 15 IS - 2 N2 - Abstract: Microplastics can have direct physical effects on organisms in freshwater systems, and are considered as vectors for absorbed environmental pollutants. It is still under discussion if microplastics are relevant pollutant vectors for uptake into aquatic organisms in comparison to further uptake pathways, e.g., via water or sediment particles. We analyzed how the presence of microplastics (polyamide particles, PA) modifies acute effects of the environmental pollutant bisphenol A (BPA) on freshwater zooplankton (Daphnia magna). Daphnids were exposed to PA particles and BPA alone, before combining them in the next step with one concentration of PA and varying concentrations of BPA. The PA particles themselves did not induce negative effects, while the effects of BPA alone followed a typical dose-dependent manner. Sorption of BPA to PA particles prior to exposure led to a reduction of BPA in the aqueous phase. The combination of BPA and PA led to decreased immobilization, although PA particles loaded with BPA were ingested by the daphnids. Calculations based on physiochemistry and equilibrium assumptions indicated lower BPA body burden of daphnids in the presence of PA particles. These results confirm model-based studies, and show that investigated microplastic concentrations are negligible for the overall pollutant uptake of daphnids with water as additional uptake pathway. SN - 1660-4601 UR - https://www.unboundmedicine.com/medline/citation/29415519/Microplastics_Reduce_Short_Term_Effects_of_Environmental_Contaminants__Part_I:_Effects_of_Bisphenol_A_on_Freshwater_Zooplankton_Are_Lower_in_Presence_of_Polyamide_Particles_ DB - PRIME DP - Unbound Medicine ER -