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Identifying Environmental Factors Influencing the Concentration, Fluxes and Spatial Distribution of Microplastic Pollution in an Urban River: A Case Study of the Klip River, South Africa
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Identifying Environmental Factors Influencing the Concentration, Fluxes and Spatial Distribution of Microplastic Pollution in an Urban River: A Case Study of the Klip River, South Africa
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Environmental factors such as precipitation, temperature, and land cover were analyzed to identify which variables most strongly control microplastic concentrations in a study ecosystem. Pinpointing these drivers helps predict spatial and seasonal patterns of microplastic pollution for monitoring and management purposes.
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Researchers reviewed the fate, transport, and ecological impacts of microplastics in riverine ecosystems, finding that rivers serve as major conduits for microplastic transfer from terrestrial sources to oceans and that riverine biota face significant exposure-related health risks.
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This review synthesized global research on microplastic pollution in rivers, covering sources, entry routes, and the key processes governing transport and transformation—including weathering, aggregation, sinking, and resuspension—along with ecotoxicological and socioeconomic impacts. Because rivers are the primary conduit transferring land-based microplastics to the ocean, understanding riverine dynamics is essential for designing effective interception strategies before contamination reaches marine food webs and human seafood supplies.
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