Ingestion and contact with polyethylene microplastics does not cause acute toxicity on marine zooplankton

JOURNAL OF HAZARDOUS MATERIALS

卷:360

Article

Beiras, R.¹  Bellas, J.²  Cachot, J.³  Cormier, B.⁴  Cousin, X.^5,6  Engwall, M.⁴  Gambardella, C.⁷  Garaventa, F.⁷  Keiter, S.⁴  Le Bihanic, F.³  Lopez-Ibanez, S.¹  Piazza, V.⁷  Rial, D.²  Tato, T.¹  Vidal-Linan, L.² 

[1] Univ Vigo, ECIMAT, E-36331 Vigo, Galicia, Spain

[2] Inst Espanol Oceanog, Ctr Oceanog Vigo, E-36390 Vigo, Galicia, Spain

[3] Bordeaux Univ, EPOC, UMR CNRS 5805, Ave Facultes, F-33400 Talence, France

[4] Orebro Univ, Sch Sci & Technol, Man Technol Environm Res Ctr, Fak Gatan 1, S-70182 Orebro, Sweden

[5] IFREMER, UMR MARBEC, Lab Adaptat & Adaptab Anim & Syst, Chemin Maguelone, F-34250 Palavas Les Flots, France

[6] Univ Paris Saclay, AgroParisTech, UMR GABI INRA, F-78350 Jouy En Josas, France

[7] CNR, ISMAR, Via Marini 6, I-16149 Genoa, Italy

关键词: Polyethylene;    Marine litter;    Marine zooplankton;    Benzophenone-3;    Embryo-larval bioassays;   

DOI  :  10.1016/j.jhazmat.2018.07.101

来源: Elsevier

【 摘 要 】

Toxicity of polyethylene microplastics (PE-MP) of size ranges similar to their natural food to zooplanktonic organisms representative of the main taxa present in marine plankton, including rotifers, copepods, bivalves, echinoderms and fish, was evaluated. Early life stages (ELS) were prioritized as testing models in order to maximize sensitivity. Treatments included particles spiked with benzophenone-3 (BP-3), a hydrophobic organic chemical used in cosmetics with direct input in coastal areas. Despite documented ingestion of both virgin and BP-3 spiked microplastics no acute toxicity was found at loads orders of magnitude above environmentally relevant concentrations on any of the invertebrate models. In fish tests some effects, including premature or reduced hatching, were observed after 12 d exposure at 10 mg L-1 of BP-3 spiked PE-MP. The results obtained do not support environmentally relevant risk of microplastics on marine zooplankton. Similar approaches testing more hydrophobic chemicals with higher acute toxicity are needed before these conclusions could be extended to other organic pollutants common in marine ecosystems. Therefore, the replacement of these polymers in consumer products must be carefully considered.

【 授权许可】

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