Abstract
Microplastics (MPs) are widely distributed in aquatic environments. They may release toxic substances or act as carriers for other organic compounds and pathogens, with potential to cause harm to the ecological environment and human health. A key concern is how MPs interact with organic compounds. We reviewed related works conducted under both laboratory conditions and in field aquatic environments to investigate the mechanisms of interactions between MPs and organic compounds from three perspectives: MPs, organic compounds, and environmental factors. The crystallinity and specific surface area of the MPs, and the functional groups, ionic form and strength of both MPs and organic compounds are key factors affecting their interactions. Environmentally realistic concentration settings for both MPs and organic compounds are critical for interpretation of the results of sorption experiments. The effect of salinity on interactions is mainly due to changes in pH. These results contribute to a better understanding of the environmental behavior, and potential ecological and human health risks of microplastics.
Published Version
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