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Polyethylene microplastics increase the toxicity of chlorpyrifos to the marine copepod Acartia tonsa.
Environ Pollut. 2020 May; 260:114059.EP

Abstract

Ingestion of microplastics by marine organisms has been well documented, but their interaction with chemical pollutants has not been sufficiently addressed. The aim of this study was to determine the individual and combined effects of chlorpyrifos (CPF) and polyethylene microplastics (MP) on the survival, fecundity, feeding and egg viability of Acartia tonsa, a calanoid copepod widely distributed in planktonic communities. The median lethal concentration obtained for CPF was higher (LC50 = 1.34 μg/L) than for the combination with MP (LC50 = 0.37 μg/L), or CPF-loaded MP (LC50 = 0.26 μg/L). Significant effects were also observed for feeding and egg production (EC50 = 0.77 and 1.07 μg/L for CPF, 0.03 and 0.05 μg/L for CPF combined with MP, 0.18 and 0.20 μg/L for CPF-loaded MP). No significant effects were observed in the exposure to 'virgin' MP. This study confirms the role of MP as vectors of pollutants to marine organisms and supports the increased availability of certain toxicants carried out by MP. The effects observed in fitness-related responses suggest potential damage to A. tonsa populations. The comparison of the results obtained here with environmental concentrations indicates that the combined exposure to CPF and MP could constitute a risk to A. tonsa in the natural environment.

Authors+Show Affiliations

Instituto Español de Oceanografía, IEO, Centro Oceanográfico de Vigo, Subida a Radio Faro 50, 36390, Vigo, Spain. Electronic address: juan.bellas@ieo.es.Instituto Español de Oceanografía, IEO, Centro Oceanográfico de Vigo, Subida a Radio Faro 50, 36390, Vigo, Spain.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32004970

Citation

Bellas, Juan, and Irene Gil. "Polyethylene Microplastics Increase the Toxicity of Chlorpyrifos to the Marine Copepod Acartia Tonsa." Environmental Pollution (Barking, Essex : 1987), vol. 260, 2020, p. 114059.
Bellas J, Gil I. Polyethylene microplastics increase the toxicity of chlorpyrifos to the marine copepod Acartia tonsa. Environ Pollut. 2020;260:114059.
Bellas, J., & Gil, I. (2020). Polyethylene microplastics increase the toxicity of chlorpyrifos to the marine copepod Acartia tonsa. Environmental Pollution (Barking, Essex : 1987), 260, 114059. https://doi.org/10.1016/j.envpol.2020.114059
Bellas J, Gil I. Polyethylene Microplastics Increase the Toxicity of Chlorpyrifos to the Marine Copepod Acartia Tonsa. Environ Pollut. 2020;260:114059. PubMed PMID: 32004970.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Polyethylene microplastics increase the toxicity of chlorpyrifos to the marine copepod Acartia tonsa. AU - Bellas,Juan, AU - Gil,Irene, Y1 - 2020/01/23/ PY - 2019/08/02/received PY - 2019/12/18/revised PY - 2020/01/22/accepted PY - 2020/2/1/pubmed PY - 2020/6/5/medline PY - 2020/2/1/entrez KW - Acartia tonsa KW - Chlorpyrifos KW - Copepods KW - Microplastics KW - Toxicity bioassays SP - 114059 EP - 114059 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ. Pollut. VL - 260 N2 - Ingestion of microplastics by marine organisms has been well documented, but their interaction with chemical pollutants has not been sufficiently addressed. The aim of this study was to determine the individual and combined effects of chlorpyrifos (CPF) and polyethylene microplastics (MP) on the survival, fecundity, feeding and egg viability of Acartia tonsa, a calanoid copepod widely distributed in planktonic communities. The median lethal concentration obtained for CPF was higher (LC50 = 1.34 μg/L) than for the combination with MP (LC50 = 0.37 μg/L), or CPF-loaded MP (LC50 = 0.26 μg/L). Significant effects were also observed for feeding and egg production (EC50 = 0.77 and 1.07 μg/L for CPF, 0.03 and 0.05 μg/L for CPF combined with MP, 0.18 and 0.20 μg/L for CPF-loaded MP). No significant effects were observed in the exposure to 'virgin' MP. This study confirms the role of MP as vectors of pollutants to marine organisms and supports the increased availability of certain toxicants carried out by MP. The effects observed in fitness-related responses suggest potential damage to A. tonsa populations. The comparison of the results obtained here with environmental concentrations indicates that the combined exposure to CPF and MP could constitute a risk to A. tonsa in the natural environment. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/32004970/Polyethylene_microplastics_increase_the_toxicity_of_chlorpyrifos_to_the_marine_copepod_Acartia_tonsa_ DB - PRIME DP - Unbound Medicine ER -