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Papers
4 resultsShowing papers from Institute for Environmental Sciences
ClearTransport Dynamics and Physiological Responses of Polystyrene Nanoplastics in Pakchoi: Implications for Food Safety and Environmental Health
Researchers tracked fluorescently labeled nanoplastics as they traveled through pakchoi (a leafy green vegetable), entering through the roots, moving up through the plant's water-transport system, and accumulating in the leaves. The nanoplastics caused oxidative damage and disrupted plant hormones, demonstrating a clear pathway by which plastic pollution in soil could enter the human food supply through everyday vegetables.
Uncertainties in Visual Observations of Floating Riverine Plastic
This study quantified the uncertainty in visual observation methods for monitoring floating plastic debris in rivers, finding that observer variability, counting distance, and lighting conditions introduce substantial error margins that are rarely acknowledged in published monitoring data.
Prediction of the toxic impact on the freshwater microalgae Scenedesmus intermedius produced by the interaction of copper sulfate and copper oxychloride in a binary mixture with glyphosate
Not relevant to microplastics — this study examines the toxicity of glyphosate and copper-based pesticides, individually and in combination, on freshwater algae growth, with no microplastic content.
Species-Specific Foliar Absorption and Translocation of Nanoplastics in Leafy Vegetables Revealed through Isotopic, Physiological, and Transcriptomic Analyses
Researchers used deuterium-labeled polystyrene nanoplastics to track foliar uptake in three leafy vegetables, finding cherry radish accumulated the highest leaf concentrations (5.1-216.3 µg/g dry weight), with translocation pathways differing by species — roots in cherry radish and lettuce, stems in water spinach — linked to differences in leaf architecture, plant physiology, and stomatal regulation gene expression.