Papers

61,005 results
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Article Tier 2

Microplastics in Swiss surface waters and going upstream: nature, concentrations, interaction with pollutants

Researchers sampled six major Swiss lakes and several rivers for microplastics using manta net trawls and beach sediment analysis, finding plastics present across all sites and also in fish and water birds. The study characterized plastic types including fragments, pellets, cosmetic beads, fibers, and films, and found associated chemical contaminants, suggesting Swiss freshwaters contribute to downstream marine plastic pollution.

2015 Infoscience (Ecole Polytechnique Fédérale de Lausanne)
Article Tier 2

Microplastics in Swiss surface waters and upstream

This research found that microplastic pollution is present throughout Switzerland in rivers, lakes, and other freshwater matrices, adding to evidence that freshwater systems are significant pathways carrying plastics toward the ocean. Aquatic organisms in Swiss waters are exposed to microplastics and their associated chemical contaminants.

2015 Infoscience (Ecole Polytechnique Fédérale de Lausanne)
Article Tier 2

Pollution due to plastics and microplastics in Lake Geneva and in the Mediterranean Sea

Researchers synthesized available data on plastic and microplastic pollution in Lake Geneva and the Mediterranean Sea, finding that both systems are significantly contaminated and that lake environments have received far less scientific attention than marine systems. The study calls for standardized sampling protocols to enable meaningful comparisons between freshwater and marine microplastic contamination levels.

2012 Infoscience (Ecole Polytechnique Fédérale de Lausanne) 183 citations
Article Tier 2

First evidence of microplastics in a freshwater river and their relationship to water quality

Researchers measured microplastic concentrations in a freshwater river used for recreational purposes and found a significant relationship between microplastic abundance and water physicochemical quality parameters, along with the presence of three organic compounds, providing evidence that microplastic pollution and water quality are closely linked.

2025 Environmental Monitoring and Assessment
Article Tier 2

Microplastics in lakes and rivers: an issue of emerging significance to limnology

Researchers found that microplastic concentrations in freshwater lakes and rivers can exceed those of living organisms like zooplankton, with sediment levels matching the most contaminated marine sites, establishing microplastics as a significant issue for limnology.

2021 Environmental Reviews 141 citations
Article Tier 2

Microplastics Are Contaminants of Emerging Concern in Freshwater Environments: An Overview

This overview examines the emerging problem of microplastic contamination in freshwater environments, covering sources, occurrence, and potential effects on aquatic ecosystems. The authors discuss how microplastics enter lakes and rivers through wastewater treatment plants, runoff, and degradation of larger plastic debris. The review highlights that freshwater microplastic pollution deserves the same research attention as marine contamination, given that rivers serve as major transport pathways for plastics reaching the ocean.

2017 ˜The œhandbook of environmental chemistry 384 citations
Article Tier 2

Plastic and Microplastic in the Environment

This review summarizes the sources, pathways, analytical methods, and distribution of microplastics in freshwater environments, emphasizing that rivers and lakes are major conduits transferring plastic pollution from terrestrial sources to the oceans.

2022 27 citations
Review Tier 2

Microplastics as contaminants in freshwater environments: A multidisciplinary review

This multidisciplinary review covers microplastic sources, abundance, composition, transport, and biological effects in freshwater systems globally, arguing that freshwater environments are both major conduits and sinks for microplastic pollution.

2020 Ecohydrology & Hydrobiology 85 citations
Article Tier 2

Sources, Occurrence, and Analysis of Microplastics in Freshwater Environments

This review summarizes current knowledge on microplastic sources and occurrence in freshwater environments, noting that freshwater systems are major conduits delivering microplastics to the ocean. The review highlights that freshwater microplastic research lags far behind marine studies despite rivers and lakes being primary pollution pathways.

2022 6 citations
Article Tier 2

Prevalence, Fate and Effects of Plastic in Freshwater Environments

This review summarizes the prevalence, environmental fate, and biological effects of plastics in freshwater ecosystems, an area that has received less attention than marine plastic pollution. Freshwater bodies are major pathways for microplastics to reach marine environments and are themselves affected by plastic contamination.

2021
Systematic Review Tier 1

Microplastic contamination, an emerging threat to the freshwater environment: a systematic review

Researchers systematically reviewed the spread of microplastics in freshwater ecosystems — rivers, lakes, and streams — documenting their sources, how they move through water, the damage they cause to aquatic organisms, and the methods used to detect them. Their review serves as a baseline reference for future research and calls for improved waste management to protect freshwater environments from ongoing microplastic contamination.

2024 ENVIRONMENTAL SYSTEMS RESEARCH 98 citations
Article Tier 2

Microplastic and Fibre Contamination in a Remote Mountain Lake in Switzerland

Researchers investigated microplastic and fiber contamination in a remote, uninhabited alpine lake in Switzerland (Sassolo), finding that even this isolated high-altitude environment contained microplastics, indicating long-range atmospheric transport.

2020 Water 112 citations
Article Tier 2

Predicting microplastic masses in river networks with high spatial resolution at country level

Scientists built a computer model to predict microplastic levels in every section of Switzerland's rivers and lakes for seven different plastic types. They found that the amount of microplastics in any given spot depends heavily on local features like nearby lakes, land use, and river connections, not just population density. This kind of detailed mapping helps identify pollution hotspots and assess where human exposure through drinking water might be highest.

2023 Nature Water 61 citations
Article Tier 2

Microplastic Pollution in Surface Waters and Sediments of Urban Lake

This book chapter reviews microplastic pollution in urban lake surface waters and sediments, describing sources, distribution patterns, and the ecological consequences of MP accumulation in these widely used but understudied freshwater habitats.

2025
Article Tier 2

Beyond the ocean: contamination of freshwater ecosystems with (micro-)plastic particles

This review examined the available data on microplastic contamination in freshwater ecosystems — rivers, lakes, and urban water systems — and found it to be widespread globally, though often underreported compared to marine environments. The authors highlight the need for reliable concentration data and chemical characterization of freshwater plastics to properly assess ecological risk.

2015 Environmental Chemistry 540 citations
Article Tier 2

The emerging issue of microplastics: ongoing investigation in water and sediments of subalpine lakes

This Italian study identified microplastics in subalpine lakes and characterized their polymer types and abundance, adding to evidence that microplastics have reached even remote freshwater ecosystems far from industrial centers. The findings underscore the ubiquity of plastic contamination across diverse freshwater environments.

2019 CINECA IRIS Institutional Research Information System (Fondazione Edmund Mach)
Article Tier 2

Microplastics in river water: occurrence, weathering, and adsorption behaviour

Researchers examined microplastics in river water, characterizing their occurrence, degree of weathering, and capacity to adsorb co-contaminants. The study highlights microplastics as vectors that can transport and re-release other pollutants in freshwater systems.

2025 Environmental Science Water Research & Technology
Systematic Review Tier 1

Microplastic Contamination, an Emerging Threat to the Freshwater Environment and Human Health: A Systematic Review

This systematic review summarizes existing research on microplastic contamination in freshwater environments and its implications for human health. The evidence shows that microplastics are widespread in rivers, lakes, and drinking water sources, and they can absorb toxic chemicals, making freshwater plastic pollution a direct concern for the safety of our water supply.

2023 Preprints.org 1 citations
Article Tier 2

Plastic pollution in freshwater ecosystems: macro-, meso-, and microplastic debris in a floodplain lake

Researchers surveyed macro-, meso-, and microplastic debris in a South American floodplain lake and found an average of 704 microplastic particles per square meter in sediments, with plastic contamination comparable to marine beaches — demonstrating that freshwater lakes can be major plastic pollution reservoirs.

2017 Environmental Monitoring and Assessment 308 citations
Article Tier 2

Microplastics Pollution: A Brief Review of Its Source and Abundance in Different Aquatic Ecosystems

This review summarizes what is known about microplastic sources and abundance across different aquatic ecosystems including rivers, lakes, and oceans. Researchers found that microplastics are pervasive across all water environments, with concentrations influenced by nearby human activities and pollution sources. The study identifies key pathways through which microplastics enter aquatic habitats and calls for standardized monitoring methods to better track contamination levels.

2022 Journal of Hazardous Materials Advances 143 citations
Article Tier 2

Microplastics as vectors of chemical contaminants and biological agents in freshwater ecosystems: Current knowledge status and future perspectives

This review examines how microplastics in freshwater ecosystems act as carriers for chemical pollutants and harmful microorganisms. Researchers found that pollutant concentrations on microplastic surfaces can be up to six times higher than in surrounding water, amplifying exposure risks for aquatic life and potentially humans. The findings highlight that microplastics are not just a pollution problem themselves but also a vehicle that spreads other contaminants through the food web.

2023 Environmental Pollution 162 citations
Article Tier 2

Revealing the role of land-use features on macrolitter distribution in Swiss freshwaters.

Analysis of macrolitter on Swiss riverbanks and lake shores showed that land-use patterns — particularly urban areas and agricultural land — were key predictors of litter abundance. The findings highlight the importance of land management and waste infrastructure in preventing plastic and other litter from entering freshwater systems and ultimately reaching the ocean.

2024 Environmental pollution (Barking, Essex : 1987)
Article Tier 2

First study on microplastic contamination in French lacustrine environments, in the alpine and subalpine zones

This French-language study reports the first assessment of microplastic contamination in Alpine and sub-Alpine lakes in France. The findings show that even remote mountain lakes have detectable microplastic pollution, suggesting that atmospheric deposition carries plastics to areas far from urban sources.

2023 SPIRE - Sciences Po Institutional REpository
Article Tier 2

Microplastic Pollution in Fresh Water

This review summarizes current knowledge on microplastic pollution in freshwater systems, covering sources such as atmospheric deposition, stormwater runoff, and wastewater, as well as the diverse shapes, sizes, and polymer types found in rivers and lakes. The authors highlight that freshwater microplastic contamination is comparable in scale to marine contamination and that the pathways to human health via drinking water and food supply demand urgent policy attention.

2023 INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 2 citations