Bioaccumulation of additives and chemical contaminants from environmental microplastics in European seabass (Dicentrarchus labrax)

被引:47
作者
Herrera, Alicia [1 ]
Acosta-Dacal, Andrea [2 ]
Perez Luzardo, Octavio [2 ]
Martinez, Ico [1 ]
Rapp, Jorge [1 ]
Reinold, Stefanie [1 ]
Montesdeoca-Esponda, Sarah [3 ]
Montero, Daniel [4 ]
Gomez, May [1 ]
机构
[1] Univ Las Palmas Gran Canaria, Iu ECOAQUA, Marine Ecophysiol Grp EOMAR, Canary Isl, Spain
[2] Univ Las Palmas Gran Canaria, Res Inst Biomed & Hlth Sci IUIBS, Toxicol Unit, Paseo Blas Cabrera S-N, Las Palmas Gran Canaria 35016, Spain
[3] Univ Las Palmas Gran Canaria, Inst Estudios Ambientales & Recursos Nat I UNAT, Canary Isl, Spain
[4] Univ Las Palmas Gran Canaria, Iu ECOAQUA, Grp Invest Acuicultura GIA, Canary Isl, Spain
关键词
Dicentrarchus labrax; Fish; Environmental microplastics; Bioconcentration; POPs; Plastic additives; POLYBROMINATED DIPHENYL ETHERS; PERSISTENT ORGANIC POLLUTANTS; CANARY-ISLANDS; PESTICIDE-RESIDUES; FOOD SAFETY; LINNAEUS; BEACHES; PBDES; BIOMAGNIFICATION; EXTRACTION;
D O I
10.1016/j.scitotenv.2022.153396
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Marine microplastic pollution is one of the biggest environmental problems we face. The growth of plastic production has not ceased since the 1950s and it is currently estimated that 368 tons of plastic were produced in 2019 (PlascticsEurope, 2020). Geyer et al. (2017) estimate that 79% of the plastic produced in the world still remains in the environment; this plastic due to the effect of degradation and subsequent fragmentation, is present in the form of microplastics in all oceans and, due to its small size can be ingested by fish and filter-feeding organisms. In addition, microplastics have additives and chemical contaminants associated with them, and the potential effect of microplastic ingestion on marine organisms, and through them, the potential risk to humans, is unknown. In the present study, European seabass (Dicentrarchus labrax) were fed for 60 days with three treatments: Control (feed), MP (feed with 10% virgin microplastics) and EMP (feed with 10% environmental microplastics), being the first study to evaluate long-term accumulation of contaminants due to ingestion of environmental microplastics (EMP) in fish. Both plastic additives such as PBDEs, and chemical contaminants adsorbed from the environment such as PCBs and DDE, were analyzed in the EMP, feed and liver. The concentration of microplastics in the feed was calculated based on the MPs/zooplankton wet weight (WW) ratio of 0.1 found in an area of maximum accumulation in the Canary Islands. Therefore, it is an experiment that simulates real conditions, but in the worst-case scenario, using both, concentrations based on data obtained in oceanographic campaigns and microplastics collected from the environment. Our results show that in this scenario, additives and chemical contaminants adsorbed on EMPs bioaccumulate in fish liver due to long-term ingestion of microplastics.
引用
收藏
页数:10
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