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Lethal and Sublethal Responses of Hydropsyche pellucidula (Insecta, Trichoptera) to Commercial Polypropylene Microplastics after Different Preconditioning Treatments

Toxics 2021 38 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
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Monia Renzi, Paolo Pastorino Monia Renzi, Serena Anselmi, Marino Prearo, ‪Damià Barceló, Serena Anselmi, Serena Anselmi, Monia Renzi, ‪Damià Barceló, Serena Anselmi, Elisabetta Pizzul, ‪Damià Barceló, Paolo Pastorino Serena Anselmi, Marino Prearo, Serena Anselmi, ‪Damià Barceló, ‪Damià Barceló, Marino Prearo, Marino Prearo, Paolo Pastorino ‪Damià Barceló, Marino Prearo, Serena Anselmi, Marino Prearo, Paolo Pastorino ‪Damià Barceló, ‪Damià Barceló, Marino Prearo, Marco Bertoli, Paolo Pastorino Serena Anselmi, Monia Renzi, Marco Bertoli, Monia Renzi, Serena Anselmi, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, Manuela Piccardo, Davide Lesa, Francesca Provenza, Antonia Concetta Elia, Francesca Provenza, Francesca Provenza, Francesca Provenza, Francesca Provenza, Serena Anselmi, ‪Damià Barceló, ‪Damià Barceló, Serena Anselmi, Francesca Provenza, Monia Renzi, Serena Anselmi, ‪Damià Barceló, Antonia Concetta Elia, ‪Damià Barceló, Serena Anselmi, Francesca Provenza, Manuela Piccardo, 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Francesca Provenza, Serena Anselmi, Serena Anselmi, Monia Renzi, Monia Renzi, Marco Bertoli, Monia Renzi, Monia Renzi, Monia Renzi, Monia Renzi, Elisabetta Pizzul, Monia Renzi, Monia Renzi, Monia Renzi, Serena Anselmi, ‪Damià Barceló, Serena Anselmi, Monia Renzi, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, Serena Anselmi, Manuela Piccardo, Monia Renzi, Monia Renzi, ‪Damià Barceló, Monia Renzi, Davide Lesa, Monia Renzi, ‪Damià Barceló, Marco Bertoli, Serena Anselmi, Monia Renzi, Marino Prearo, Antonia Concetta Elia, Serena Anselmi, ‪Damià Barceló, Monia Renzi, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, Paolo Pastorino Paolo Pastorino Serena Anselmi, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, Serena Anselmi, Serena Anselmi, Davide Lesa, Serena Anselmi, Serena Anselmi, Paolo Pastorino Serena Anselmi, Serena Anselmi, Serena Anselmi, Serena Anselmi, Monia Renzi, Monia Renzi, Marco Bertoli, ‪Damià Barceló, Serena Anselmi, Serena Anselmi, Serena Anselmi, Monia Renzi, Serena Anselmi, ‪Damià Barceló, Serena Anselmi, Monia Renzi, Monia Renzi, Serena Anselmi, Marino Prearo, Monia Renzi, Elisabetta Pizzul, Serena Anselmi, ‪Damià Barceló, ‪Damià Barceló, Monia Renzi, Monia Renzi, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, Monia Renzi, Serena Anselmi, Serena Anselmi, Serena Anselmi, Monia Renzi, Serena Anselmi, Francesca Provenza, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, Francesca Provenza, Serena Anselmi, Serena Anselmi, Monia Renzi, ‪Damià Barceló, Monia Renzi, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Paolo Pastorino Paolo Pastorino Paolo Pastorino Monia Renzi, Monia Renzi, Monia Renzi, Monia Renzi, Monia Renzi, Monia Renzi, Antonia Concetta Elia, Marino Prearo, Marino Prearo, Marino Prearo, Marco Bertoli, Francesca Provenza, Davide Lesa, Serena Anselmi, Francesca Provenza, Davide Lesa, Monia Renzi, Marino Prearo, Antonia Concetta Elia, Antonia Concetta Elia, Antonia Concetta Elia, Elisabetta Pizzul, Elisabetta Pizzul, Elisabetta Pizzul, ‪Damià Barceló, Monia Renzi, Serena Anselmi, Paolo Pastorino Serena Anselmi, Paolo Pastorino Serena Anselmi, Serena Anselmi, Paolo Pastorino Serena Anselmi, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Serena Anselmi, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Marino Prearo, Serena Anselmi, Marino Prearo, Marino Prearo, Monia Renzi, Monia Renzi, Monia Renzi, Antonia Concetta Elia, Monia Renzi, Monia Renzi, Monia Renzi, Francesca Provenza, Monia Renzi, Marino Prearo, Paolo Pastorino Elisabetta Pizzul, Antonia Concetta Elia, Paolo Pastorino ‪Damià Barceló, ‪Damià Barceló, Francesca Provenza, 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Marino Prearo, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, ‪Damià Barceló, Marino Prearo, Antonia Concetta Elia, Paolo Pastorino

Summary

Researchers assessed lethal and sublethal responses of the freshwater caddisfly Hydropsyche pellucidula to polypropylene microplastics with different preconditioning treatments, finding that environmental conditioning of particles influenced their toxicological effects.

Polymers
PA PE PET PP PS PU
Study Type Environmental

Microplastics (MPs) pose biological and chemical hazards in aquatic and terrestrial food webs across the globe. Research on microplastic contamination has long focused on marine ecosystems, whereas the toxicological impact on freshwater organisms is still little explored. In this study, the lethal and sublethal response of the freshwater macroinvertebrate <i>Hydropsyche pellucidula</i> exposed to polypropylene MPs after different pre-conditioning treatments was assessed. Field samples were collected in a riverine system (Vipacco river; northeast Italy) to assess the characteristics of the MPs in the aquatic environment Both water and sediment were contaminated by MPs (3.73 ± 2.11 items m<sup>-3</sup> per min and 3.33 ± 4.16 items dm<sup>-3</sup>, respectively). The chemical MPs composition included polystyrene, polyethylene terephthalate, polyurethane, polyamide, polypropylene, and polyethylene. Polypropylene (PP), although not the most abundant polymer recorded in the study area, was preferred over the other types according to its abundance in freshwater and <i>H. pellucidula</i> feeding behavior. A housing test was performed to recreate the natural conditions of larvae sampled for a reliable response to the ecotoxicological tests. The microplastics underwent either preconditioning with Vipacco River water (PP-river) and surfactant Triton X-100 (PP-sf) or no pre-treatment (PP). Submersion of microplastics in 10 µg L<sup>-1</sup> of surfactant solution for 24 h was sufficient to induce consistent spectral changes and modify the chemical profile of the plastic surface. Mortality rate differed according to treatment: PP and PP-river > positive control > PP-sf > negative control. Integrated biomarker response (IBRv2) and analysis of oxidative stress biomarker levels showed a greater response of superoxide dismutase and lipid peroxidation (malondialdehyde) in larvae treated with PP conditioned in surfactant. Our findings enhance knowledge on the toxicity of PP and conditioning phases on <i>H. pellucidula</i> larvae.

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