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Effects of microplastics from unsmoked and smoked cigarette filters on aquatic and terrestrial invertebrates
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Researchers assessed the ecotoxicological effects of microplastics extracted from both unsmoked and smoked cigarette filters on aquatic invertebrates (rotifer Brachionus calyciflorus, water flea Daphnia magna) and terrestrial invertebrates (woodlice Porcellio scaber, mealworm Tenebrio molitor) across a concentration range of 1-100 mg/L. The study found that smoked cigarette filter microplastics caused greater toxicity than those from unsmoked filters, likely due to the additional chemical contaminants deposited during smoking.
Cigarette butts are one of the most important sources of microplastics (MPs), due to their global occurrence and the significant amounts found in the environment. The aim of this study was to investigate the effects of MPs produced from unsmoked (UCF-MPs; fragments, number mean size ± SD: 12.71 ± 6.82 µm) and smoked cigarette filters (SCF-MPs; fragments, 9.06 ± 4.1 µm) on aquatic (rotifer Brachionus calyciflorus, water flea Daphnia magna) and terrestrial invertebrates (woodlice Porcellio scaber, mealworm Tenebrio molitor). Aquatic organisms were exposed to MPs in a concentration range of 1–100 mg/L in water media for 24 h and 48 h for B. calyciflorus and D. magna, respectively. On the other hand, terrestrial organisms were exposed to MPs in a concentration range of 0.06–1.5 Also see: https://micro2024.sciencesconf.org/558756/document
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Effects of microplastics from unsmoked and smoked cigarette filters on aquatic and terrestrial invertebrates
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Researchers exposed aquatic invertebrates (rotifer Brachionus calyciflorus, water flea Daphnia magna) and terrestrial invertebrates (woodlice Porcellio scaber, mealworm Tenebrio molitor) to microplastics derived from both unsmoked and smoked cigarette filters at concentrations ranging from 1 to 100 mg/L and assessed acute toxicity. The study found that cigarette butt-derived microplastics caused measurable adverse effects on multiple invertebrate species across both aquatic and terrestrial exposure routes.
Microplastics from cigarette filters: Comparative effects on selected terrestrial and aquatic invertebrates
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Researchers compared the effects of microplastics from smoked and unsmoked cigarette filters on both land and water invertebrates. Smoked filter microplastics were more toxic due to the added chemicals from tobacco smoke, causing reduced survival and reproduction in the test organisms. Since cigarette butts are one of the most littered items worldwide, this study shows they are a significant and underappreciated source of toxic microplastic pollution in the environment.
Microplastics from cigarette filters: Comparative effects on selected terrestrial and aquatic invertebrates
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Researchers compared the effects of microplastics derived from cigarette filters on selected terrestrial and aquatic invertebrates, examining differences in toxicity across species and environments in a study published in Environmental Pollution.
Effects of microplastics from cigarette filters on terrestrial and aquatic invertebrates
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Researchers prepared microplastics from cellulose acetate cigarette filter material, both pristine and UV-aged, and tested their effects on Daphnia magna, Tenebrio molitor mealworm larvae, and Porcellio scaber terrestrial crustaceans. Short-term exposure slightly altered immune parameters in woodlice while longer exposures caused no immune changes, and mealworm energy-related traits were also affected, indicating invertebrate-specific and dose-dependent responses to cigarette filter-derived microplastics.
Effects of microplastics from cigarette filters on two aquatic species and in vitro human lung cells
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Researchers assessed the ecotoxicological effects of microplastics derived from cigarette filters on two aquatic species and conducted in vitro tests for human cellular toxicity. Cigarette filter microplastics caused harm to both aquatic organisms and human cells, confirming them as a toxicologically relevant source.
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