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Polyethylene microplastics do not increase bioaccumulation or toxicity of nonylphenol and 4-MBC to marine zooplankton.
Sci Total Environ. 2019 Nov 20; 692:1-9.ST

Abstract

Global production of synthetic polymers, led by polyethylene (PE), rose steadily in the last decades, and marine ecosystems are considered as a global sink. Although PE is not biodegradable, in coastal areas it fragments into microplastics (MP) readily taken up by biota, and have been postulated as vectors of hydrophobic chemicals to marine organisms. We have tested this hypothesis using two organisms representative of the marine plankton, the holoplanktonic copepod Acartia clausi, and the meroplanktonic larva of the Paracentrotus lividus sea-urchin, and two model chemicals with similar hydrophobic properties, the 4-n-Nonylphenol and the 4-Methylbenzylidene-camphor used as plastic additive and UV filter in cosmetics. Both test species actively ingested the MP particles. However, the presence of MP never increased the bioaccumulation of neither model chemicals, nor their toxicity to the exposed organisms. Bioaccumulation was a linear function of waterborne chemical disregarding the level of MP. Toxicity, assessed by the threshold (EC10) and median (EC50) effect levels, was either independent of the level of MP or even in some instances significantly decreased in the presence of MPs. These consistent results challenge the assumption that MP act as vectors of hydrophobic chemicals to planktonic marine organisms.

Authors+Show Affiliations

ECIMAT, Universidade de Vigo, Illa de Toralla, 36331 Vigo, Galicia, Spain; Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Campus Lagoas-Marcosende, 36200 Vigo, Galicia, Spain. Electronic address: rbeiras@uvigo.es.Grupo Química Analítica Aplicada, Instituto Universitario de Medio Ambiente (IUMA), Centro de Investigaciones Científicas Avanzadas (CICA), Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Galicia, Spain.Department of Analytical Chemistry, Nutrition and Food Science, IIAA-Institute for Food Analysis and Research, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Galicia, Spain.ECIMAT, Universidade de Vigo, Illa de Toralla, 36331 Vigo, Galicia, Spain.Department of Analytical Chemistry, Nutrition and Food Science, IIAA-Institute for Food Analysis and Research, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Galicia, Spain.ECIMAT, Universidade de Vigo, Illa de Toralla, 36331 Vigo, Galicia, Spain.Grupo Química Analítica Aplicada, Instituto Universitario de Medio Ambiente (IUMA), Centro de Investigaciones Científicas Avanzadas (CICA), Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Galicia, Spain.Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Campus Lagoas-Marcosende, 36200 Vigo, Galicia, Spain.Grupo Química Analítica Aplicada, Instituto Universitario de Medio Ambiente (IUMA), Centro de Investigaciones Científicas Avanzadas (CICA), Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Galicia, Spain.Department of Analytical Chemistry, Nutrition and Food Science, IIAA-Institute for Food Analysis and Research, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Galicia, Spain.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31326592

Citation

Beiras, Ricardo, et al. "Polyethylene Microplastics Do Not Increase Bioaccumulation or Toxicity of Nonylphenol and 4-MBC to Marine Zooplankton." The Science of the Total Environment, vol. 692, 2019, pp. 1-9.
Beiras R, Muniategui-Lorenzo S, Rodil R, et al. Polyethylene microplastics do not increase bioaccumulation or toxicity of nonylphenol and 4-MBC to marine zooplankton. Sci Total Environ. 2019;692:1-9.
Beiras, R., Muniategui-Lorenzo, S., Rodil, R., Tato, T., Montes, R., López-Ibáñez, S., Concha-Graña, E., Campoy-López, P., Salgueiro-González, N., & Quintana, J. B. (2019). Polyethylene microplastics do not increase bioaccumulation or toxicity of nonylphenol and 4-MBC to marine zooplankton. The Science of the Total Environment, 692, 1-9. https://doi.org/10.1016/j.scitotenv.2019.07.106
Beiras R, et al. Polyethylene Microplastics Do Not Increase Bioaccumulation or Toxicity of Nonylphenol and 4-MBC to Marine Zooplankton. Sci Total Environ. 2019 Nov 20;692:1-9. PubMed PMID: 31326592.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Polyethylene microplastics do not increase bioaccumulation or toxicity of nonylphenol and 4-MBC to marine zooplankton. AU - Beiras,Ricardo, AU - Muniategui-Lorenzo,Soledad, AU - Rodil,Rosario, AU - Tato,Tania, AU - Montes,Rosa, AU - López-Ibáñez,Sara, AU - Concha-Graña,Estefanía, AU - Campoy-López,Pedro, AU - Salgueiro-González,Noelia, AU - Quintana,José Benito, Y1 - 2019/07/08/ PY - 2019/05/02/received PY - 2019/07/03/revised PY - 2019/07/07/accepted PY - 2019/7/22/pubmed PY - 2020/1/14/medline PY - 2019/7/22/entrez KW - 4-MBC KW - Bioaccumulation KW - Nonylphenol KW - Plastics KW - Toxicity bioassays SP - 1 EP - 9 JF - The Science of the total environment JO - Sci. Total Environ. VL - 692 N2 - Global production of synthetic polymers, led by polyethylene (PE), rose steadily in the last decades, and marine ecosystems are considered as a global sink. Although PE is not biodegradable, in coastal areas it fragments into microplastics (MP) readily taken up by biota, and have been postulated as vectors of hydrophobic chemicals to marine organisms. We have tested this hypothesis using two organisms representative of the marine plankton, the holoplanktonic copepod Acartia clausi, and the meroplanktonic larva of the Paracentrotus lividus sea-urchin, and two model chemicals with similar hydrophobic properties, the 4-n-Nonylphenol and the 4-Methylbenzylidene-camphor used as plastic additive and UV filter in cosmetics. Both test species actively ingested the MP particles. However, the presence of MP never increased the bioaccumulation of neither model chemicals, nor their toxicity to the exposed organisms. Bioaccumulation was a linear function of waterborne chemical disregarding the level of MP. Toxicity, assessed by the threshold (EC10) and median (EC50) effect levels, was either independent of the level of MP or even in some instances significantly decreased in the presence of MPs. These consistent results challenge the assumption that MP act as vectors of hydrophobic chemicals to planktonic marine organisms. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/31326592/Polyethylene_microplastics_do_not_increase_bioaccumulation_or_toxicity_of_nonylphenol_and_4_MBC_to_marine_zooplankton_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(19)33219-X DB - PRIME DP - Unbound Medicine ER -