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61,005 resultsShowing papers similar to A Comprehensive Review of MP Pollution in Global Rivers: Distribution Patterns and Fluvial Transport Dynamics
ClearOccurrence of microplastic pollution in rivers globally: Driving factors of distribution and ecological risk assessment
Researchers constructed a global dataset of microplastic pollution across 862 river water and 445 sediment samples, identifying population density, GDP, and plastic waste generation as key driving factors of riverine microplastic distribution and ecological risk.
From pollution to solutions: Insights into the sources, transport and management of plastic debris in pristine and urban rivers
This review examines how river systems receive and transport plastic debris -- including both macroplastics and microplastics -- from land sources to the ocean, synthesizing evidence on pollution sources, fate, and management strategies across pristine and urban rivers.
River export of macro- and microplastics to seas by sources worldwide
This global modeling study estimated that rivers carry about 500,000 tons of plastic into the ocean each year, with both large plastics and microplastics playing significant roles. In Europe, North America, and Oceania, microplastics from sewage are the dominant type in nearly 40 percent of river basins, while in Africa and Asia, larger plastic waste from poor waste management is the main problem. The study helps identify which areas need which types of pollution reduction strategies to protect both marine ecosystems and the communities that rely on them.
River plastic transport and storage budget.
This global synthesis estimated the plastic transport and storage budget for rivers by measuring plastic in the water surface, water column, riverbanks, and floodplains — finding that far more plastic is stored within rivers than is transported to the ocean. The study challenges the assumption that rivers are primarily conduits and highlights them as major long-term plastic reservoirs.
Microplastics in global rivers: Sustainable practices
Global modeling of microplastics in rivers from 2010–2100 projects nearly a tripling of concentrations by 2100 under baseline scenarios, with African rivers joining Europe and Asia as major pollution hotspots, while improved sanitation could substantially reduce these inputs.
Abundance, Distribution and Drivers of Microplastic Contaminant in Urban River Environments
Researchers surveyed microplastic distribution in urban river environments and identified key drivers of accumulation hotspots, finding that land use, hydrology, and infrastructure factors concentrated microplastics at predictable locations that could inform targeted management interventions.
Global analysis of marine plastics and implications of control measure strategies
This study provides a global overview of ocean plastic pollution, finding that plastic production has grown dramatically since the 1950s and over 1,000 rivers contribute 80% of the plastic entering oceans, with Asia as the largest source. Small microplastics dominate ocean surface contamination by particle count, even though larger pieces account for more mass. The review highlights that without major changes in waste management and recycling, plastic pollution will continue to threaten marine food chains and the people who depend on seafood.
Global plastic export by rivers: large differences in trends between microplastics and macroplastics
A global analysis modeled river export of both micro- and macroplastics to the sea, finding large divergences in trends between the two size classes and highlighting that models focused solely on macroplastics significantly underestimate total riverine plastic inputs to the ocean.
Riverine macroplastic gradient along watercourses: A global overview
Researchers conducted a global overview of macroplastic pollution gradients along river systems, from upper reaches to lower stretches. The study found that plastic concentrations generally increase downstream, driven by population density and urbanization, and highlighted that upper and middle river zones have been largely overlooked in previous research.
Baseline Study on Microplastics in Indian Rivers under Different Anthropogenic Influences
Researchers collected microplastic samples from Indian rivers under different levels of anthropogenic influence and found MPs in all sites, with concentrations correlating with population density and industrial activity, providing one of the first systematic field datasets for major Indian river systems.
Assessing small-scale freshwater microplastics pollution, land-use, source-to-sink conduits, and pollution risks: Perspectives from Japanese rivers polluted with microplastics
Researchers assessed microplastic pollution in four small-scale Japanese rivers flowing into the Sea of Japan and Seto Inland Sea. The study found that these small rivers were more heavily polluted than many larger rivers worldwide, with polyethylene, polypropylene, and polyester fibers dominating, suggesting that small-scale rivers are significant but often overlooked conduits transporting land-based microplastics to marine environments.
Global distribution of wastewater treatment plants and their released effluents into rivers and streams
This paper maps the global distribution of wastewater treatment plants and quantifies the pollutants—including microplastics—they release into rivers. Despite removing much of the contamination, these facilities remain significant sources of microplastic discharge into waterways worldwide.
Significant regional disparities in riverine microplastics
Researchers built a comprehensive framework to compare microplastic pollution across 76 rivers spanning Asia, Europe, and Africa, revealing significant regional differences. Rivers in Asia tended to have higher microplastic concentrations than those in Europe, and land use patterns strongly influenced contamination levels. The study highlights the need for standardized methods to enable meaningful global comparisons of riverine microplastic pollution.
Modelling global river export of microplastics to the marine environment: Sources and future trends
Researchers developed the GREMiS model to estimate global river export of microplastics to the ocean, projecting that annual marine inputs will increase significantly under business-as-usual plastic production scenarios.
A systematic review of microplastic pollution in rivers across Asia
This systematic review found that microplastic pollution is widespread across Asian rivers, with fibers and fragments from synthetic textiles and packaging being the most common types. Since these rivers provide drinking water and sustain fisheries for billions of people, the contamination represents a significant pathway for human microplastic exposure across the most populated continent.
Assessment of Micro-Plastic Contamination in Urban River Systems: A Case Study Using UK Catchment Data
This systematic review examines microplastic contamination in urban rivers across the UK, finding that wastewater treatment plants, stormwater runoff, and industrial discharge are the main sources. The research matters for human health because urban rivers supply drinking water and recreational areas, and microplastic pollution in these waterways increases the risk of human exposure.
A catchment‐scale perspective of plastic pollution
This review framed plastic pollution from a catchment-scale perspective, synthesizing evidence on plastic sources, transport dynamics, and effects across terrestrial, freshwater, and marine environments within river drainage basins. The authors find that rivers are hotspots for plastic pollution and pivotal conduits to the ocean, and call for integrated catchment-level management rather than environment-by-environment approaches.
A Review of Microplastic Pollution Characteristics in Global Urban Freshwater Catchments
This review synthesizes evidence on microplastic pollution characteristics in urban freshwater catchments worldwide, examining sources, concentrations, and transport pathways from terrestrial to marine environments. Researchers found that human activities are the fundamental driver of microplastic pollution and that freshwater catchments serve as critical conduits for microplastic transfer to oceans.
Direkte Mikro- und Makroplastiktransportmessungen an großen und mittleren Flüssen sowie im Ablauf von Kläranlagen
This German-language study presents direct measurements of micro- and macroplastic transport in large and medium-sized rivers as well as wastewater treatment plant effluents. It addresses a research gap in freshwater plastic transport quantification, providing empirical data on how rivers carry plastics toward marine environments.
Plastics in an urbanizing world: sustainable strategies for rivers and seas
This review examines the sources and pathways of macro- and microplastics entering rivers and seas in an urbanizing world, synthesizing evidence on secondary microplastic generation from macroplastics and evaluating sustainable management strategies including improved waste management and reduction of single-use plastics.
A multidimensional approach for microplastics monitoring in two major tropical river basins, Malaysia
Researchers conducted a multidimensional assessment of microplastic distribution in surface waters of two major Malaysian river basins, providing much-needed field data on microplastic emissions from Asian rivers known to be major contributors to ocean pollution.
Plastic debris in rivers
This review synthesizes current knowledge on plastic debris in rivers, covering sources, transport mechanisms, ecological impacts, and the role of rivers in delivering plastic to the oceans. The authors highlight key knowledge gaps and emphasize that riverine ecosystems are directly harmed by plastic pollution, not merely transit corridors.
Source-to-sink dynamics of microplastics and heavy metals along a land-use gradient in the tropical river system of India
Researchers tracked microplastics and heavy metals along a river system in southern India, finding widespread contamination in both water and sediment. Household waste was identified as a major source, with tiny plastic pellets and beads making up over 80% of the particles found. The study shows how urbanization and human activity drive microplastic pollution in freshwater systems that communities depend on for drinking and farming.
Leaving a plastic legacy: current and future scenarios for mismanaged plastic waste in rivers
Researchers estimated that 0.8 million tonnes of mismanaged plastic waste enters rivers annually, affecting 84% of global rivers by surface area, and project a nearly three-fold increase by 2060 — though improved waste governance could reduce this pollution by up to 72%.