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Evaluation of the Role of Plastic Aging on the Sorption of Pesticides and Pharmaceutical Substances on Microplastics
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Researchers evaluated how plastic aging affects the sorption of pesticides and pharmaceutical compounds onto microplastics, finding that weathering processes alter the polymer surface in ways that change the particle's capacity to absorb and concentrate chemical contaminants, with implications for pollutant transport and ecotoxicological risk.
Microplastics’ sorption capability has been studied over the last decade to better understand the potential impacts that they have on the ecosystems and human health. However, the role of plastic aging, in which the polymer’s physical and chemical...
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Factors Affecting the Sorption of Pollutants by Microplastics: Mechanisms and Environmental Implications
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Researchers reviewed the physicochemical factors — including particle size, surface area, weathering state, and polymer type — that govern how microplastics sorb environmental pollutants, and examined the ecological implications of this vector effect for contaminant transport and bioavailability.
Adsorption behavior of imidacloprid pesticide on polar microplastics under environmental conditions: critical role of photo-aging
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UV photo-aging altered the surface chemistry of polyamide and polylactic acid microplastics in opposing ways, decreasing imidacloprid pesticide adsorption on polyamide by 19% while increasing it on PLA by 41%, with electrostatic forces, hydrogen bonding, and van der Waals interactions governing the uptake. These results show that environmental weathering significantly changes how microplastics interact with pesticides, meaning aged particles in natural settings may carry different contaminant loads than fresh plastics studied in laboratory conditions.
Sorption of Pharmaceuticals on Microplastics
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Researchers reviewed the sorption of pharmaceuticals onto microplastics in the environment, finding that microplastics act as vectors for pharmaceutical contaminants, potentially enhancing their transport and bioavailability in aquatic ecosystems and increasing combined toxicity risks.
Sorption of Pollutants on Microplastics
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Researchers reviewed how microplastics act as sponges for environmental pollutants like pesticides, heavy metals, and pharmaceuticals, absorbing and concentrating these chemicals in ways that can amplify their toxicity when ingested by marine animals — and potentially by humans.
Sorption of Pollutants on Microplastics
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Researchers reviewed how microplastics act as sponges for other pollutants in the environment, absorbing toxic chemicals like pesticides and heavy metals and potentially carrying them into the food chain, compounding the health risks of plastic contamination beyond the particles themselves.
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