Toxicity of polystyrene microplastics on juvenile Oncorhynchus mykiss (rainbow trout) after individual and combined exposure with chlorpyrifos‎.

  title={Toxicity of polystyrene microplastics on juvenile Oncorhynchus mykiss (rainbow trout) after individual and combined exposure with chlorpyrifos‎.},
  author={Samaneh Karbalaei and Parichehr Hanachi and Gholamreza Rafiee and Parvaneh Seifori and Tony R. Walker},
  journal={Journal of hazardous materials},
Microplastic (MP) sorption and transfer of chemical contaminants has been widely reported, yet few studies have investigated combined effects of contaminant-loaded MPs on organisms. This study examined effects of pristine or chlorpyrifos (CPF)-loaded polystyrene (PS)‎ fragments on histopathological and histomorphometrical biomarkers in rainbow trout (Onchorhynchus mykiss)‎. In laboratory, O. mykiss were exposed for 96 h to pristine PS-MPs concentrations (30 or 300 µg/L), concentrations of CPF… Expand
Combined polystyrene microplastics and chlorpyrifos decrease levels of nutritional parameters in muscle of rainbow trout (Oncorhynchus mykiss)
It is suggested that polystyrene microplastics cause toxicity and increase the adverse effects of chlorpyrifos on the muscle of fish, providing evidence toward low nutritional value of farmed or wild fish muscle that grows in areas with high concentrations of microplastic and pesticides. Expand
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Abstract Increasing the abundance and wide distribution of microplastics is one of the most important concerns of biological communities. These particles can act as carriers of environmental chemicalExpand
Polystyrene microplastics induce apoptosis via ROS-mediated p53 signaling pathway in zebrafish.
It is strongly suggested that PS-MPs induces dose-and time-dependent ROS mediated apoptotic responses in zebrafish and significantly upregulate the transcriptional pattern of tnfa and ptgs2a which are essential gene markers in inflammatory mechanism. Expand
How do humans recognize and face challenges of microplastic pollution in marine environments? A bibliometric analysis.
How microplastic pollution in marine environments is gradually recognized and what challenges the authors face is elucidated, suggesting future avenues for MP research are suggested. Expand
Microplastic pollution of Patos Lagoon, south of Brazil
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Assessing the level of airborne polystyrene microplastics using thermogravimetry-mass spectrometry: Results for an agricultural area
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Single and combined effects of microplastics and pyrene on juveniles (0+ group) of the common goby Pomatoschistus microps (Teleostei, Gobiidae)
Overall, results show that microplastics modulate either the bioavailability or biotransformation of pyrene, and simultaneous exposure to microplastic and pyrene decrease the energy available through the aerobic pathway of energy production; andmicroplastics inhibit AChE activity. Expand
Polyethylene microplastics increase the toxicity of chlorpyrifos to the marine copepod Acartia tonsa.
The role of MP as vectors of pollutants to marine organisms and supports the increased availability of certain toxicants carried out by MP are confirmed and the effects observed in fitness-related responses suggest potential damage to A. tonsa populations. Expand
Virgin microplastics cause toxicity and modulate the impacts of phenanthrene on biomarker responses in African catfish (Clarias gariepinus).
Results of this study highlight the ability of virgin LDPE fragments to cause toxicity and to modulate the adverse impacts of Phe in C. gariepinus. Expand
Hepatotoxicity of pristine polyethylene microplastics in neotropical physalaemus cuvieri tadpoles (Fitzinger, 1826).
This study is the first to report the histopathotoxicity of PE MPs in representatives of the amphibian group, and it contributes to improving knowledge about these pollutants and how they may affect the health of these animals. Expand
How much are microplastics harmful to the health of amphibians? A study with pristine polyethylene microplastics and Physalaemus cuvieri.
Tadpoles' exposure to MP PE at concentration 60 mg/L for 7 days led to mutagenic effects, which were evidenced by the increased number of abnormalities observed in nuclear erythrocytes, which confirmed its cytotoxicity. Expand
Microplastic does not magnify the acute effect of PAH pyrene on predatory performance of a tropical fish (Lates calcarifer).
It is confirmed that short-time exposure to pyrene impacts the performance of fish juveniles, while additional exposure to microplastic at the given conditions influenced their activity only and not their feeding rate. Expand
Single and combined effects of microplastics and cadmium on the cadmium accumulation, antioxidant defence and innate immunity of the discus fish (Symphysodon aequifasciatus).
It is suggested that exposure to Cd led to reduced Cd accumulation in the presence of MPs, which could induce severe oxidative stress and stimulate innate immunity in the juvenile S. aequifasciatus. Expand
Combined effects of microplastics and chemical contaminants on the organ toxicity of zebrafish (Danio rerio)
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Environmental relevant concentrations of a chlorpyrifos commercial formulation affect two neotropical fish species, Cheirodon interruptus and Cnesterodon decemmaculatus.
Given that both species responded to CF and the concentrations tested are environmentally relevant, the presence of this pesticide in freshwater systems could impose a risk for populations of both native fish studied at field. Expand
Effects of microplastics and mercury on manila clam Ruditapes philippinarum: Feeding rate, immunomodulation, histopathology and oxidative stress.
It is suggested that the vector role of polyethylene microplastics in mercury uptake is negligible and reveals that the single and interactive one-week exposure of two pollutants induce toxicity in the manila clams. Expand