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Multilevel toxicity assessment of polypropylene microplastics and pyrene on mussels: DNA damage, oxidative stress, and physiological effects
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An integrative study exposed Mediterranean mussels to polypropylene microplastics and pyrene for 7 and 14 days, finding combined exposure caused greater DNA damage, oxidative stress, and physiological impairment than either pollutant alone in heavily polluted coastal conditions.
The data are produced within the study to investigate the onsequences of microplastic pollution and pyrene on Mytilus galloprovincialis. We present an integrative assessment of polypropylene (PP) and pyrene, individually and in co-exposure, in mussel Mytilus galloprovincialis. Mussels were exposed to 1 mg L- 1 PP (~40 μm) and 50 μg L- 1 of pyrene for 7 and 14 days, representing a scenario relevant to highly polluted coastal areas. The study was published in Marine Pollution Bulletin 222 (2026) 118880.
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Multilevel toxicity assessment of polypropylene microplastics and pyrene on mussels: DNA damage, oxidative stress, and physiological effects
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Mussels were exposed to polypropylene microplastics and pyrene individually and together, revealing that DNA damage paradoxically decreased under co-exposure, suggesting complex antagonistic interactions between these two common marine pollutants.
Multilevel toxicity assessment of polypropylene microplastics and pyrene on mussels
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Researchers assessed the combined effects of polypropylene microplastics and the pollutant pyrene on Mediterranean mussels over 14 days. They found that while each pollutant individually increased DNA damage, the combination surprisingly did not, suggesting a complex interaction between the two contaminants. However, the combined exposure compromised the mussels' physiological resilience, as shown by their slower heart rate recovery after stress, indicating that co-exposure to microplastics and pollutants can have nuanced biological effects.
Multilevel toxicity assessment of polypropylene microplastics and pyrene on mussels: DNA damage, oxidative stress, and physiological effects
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This dataset accompanies the integrative toxicity assessment of polypropylene microplastics and pyrene co-exposure in Mytilus galloprovincialis mussels, documenting DNA damage, oxidative stress, and physiological responses at environmentally relevant concentrations.
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Researchers exposed Mediterranean mussels to environmentally collected microplastics from a beach, both alone and combined with the pollutant benzo[a]pyrene, at ecologically relevant concentrations. The study found that even short-term exposure caused cellular and molecular responses in the mussels, and the combination of microplastics with chemical pollutants produced different effects than either contaminant alone.
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