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61,005 resultsShowing papers similar to Microplastics in freshwater reservoirs of protected areas on the example of lakes of the «Valdai» National Park
ClearMicroplastic Concentrations in Bottom Sediments of the Lakes of Specially Protected Natural Territories: Case Study of the Kizhskie Skerries, Lake Onega and Vodlozero Lake
Researchers measured microplastic concentrations in bottom sediments of lakes within specially protected natural territories in Russia, including Vodlozero National Park and the Kizhi Museum-Reserve on Lake Onega. The study found microplastic contamination even in these nominally protected areas, characterising particle morphology, polymer types, and spatial distribution patterns.
Potential ecological risk of microplastics contamination to environment in protect area lakes
Researchers studied microplastic contamination in protected area lakes on the Qinghai-Tibetan Plateau and found that even these remote, supposedly pristine environments contain microplastics. The study compared protected lakes with those outside protected areas and found contamination levels varied by region and economic development. This shows that microplastic pollution reaches even the most isolated freshwater sources, which could affect drinking water quality for surrounding communities.
Microplastics pollution and risk assessment in water bodies of two nature reserves in Jilin Province: Correlation analysis with the degree of human activity
Researchers surveyed microplastic pollution in the waters of two nature reserves in northeastern China and found contamination at all sampling sites, with abundances correlated to the degree of nearby human activity. Fiber-shaped microplastics were the most prevalent type, and risk assessment indicated moderate ecological concern in some areas. The study demonstrates that even protected natural areas are not immune to microplastic pollution, particularly when human activities occur nearby.
Microplastic Pollution in the Surface Waters from Plain and Mountainous Lakes in Siberia, Russia
Researchers conducted the first analysis of microplastic pollution in six lakes across southern Siberia, including both mountainous and plain environments. Microplastics were detected in all lakes studied, even those in protected areas with no permanent population nearby. The findings indicate that microplastic contamination has reached remote freshwater environments in Siberia, highlighting the widespread nature of this pollution.
Micro- and Macroplastics Pollution in the Aquatic Environment of Markakol Lake Located in the Protected Area on the Mountain Slopes of the Southern Part of the Kazakh Altai Mountains
Researchers surveyed Markakol Lake — a protected, high-mountain lake in Kazakhstan's Altai region — and found micro- and macroplastics in every water sample taken from the lake and its tributaries, with microplastic concentrations reaching 520 µg/m³ in the lake itself. Even this remote, legally protected ecosystem is not spared from plastic pollution, with local fishing, transport, and waste disposal identified as the primary sources. The findings highlight that geographic isolation or conservation status does not shield freshwater bodies from contamination.
Microplastic accumulation in water from protected areas in Western Forest Complex of Thailand
Researchers surveyed microplastic contamination in freshwater ecosystems within protected areas of Thailand's Western Forest Complex. The study found microplastics present in nearly 99% of water samples, predominantly as fibers, with polyethylene and polypropylene among the most common polymer types, suggesting that even remote protected areas are not immune to microplastic pollution.
An Examination of Microplastic Pollution in Protected Areas from Outdoor Recreation
Microplastics were found in soils from protected natural areas frequently visited by outdoor recreationists, suggesting that even conservation lands and wilderness parks are not insulated from plastic pollution carried in by human visitors.
Microplastic pollution in water environment of typical nature reserves and scenery districts in southern China
Researchers measured microplastic abundance and polymer composition in water from 11 nature reserves and scenic districts in southern China, detecting microplastics in all samples with variation related to proximity to human activities. The findings fill a knowledge gap on microplastic contamination in protected natural areas and reveal that even remote reserves are not free from plastic pollution.
Microplastics in Russian Freshwater Systems: a Review
This review synthesizes published research on microplastic contamination in Russian freshwater systems, cataloguing particle abundance, polymer types, and spatial distribution patterns across rivers and lakes despite the relatively limited number of Russian studies compared to global literature.
Microplastic Distribution Patterns and Water Quality in the Water Area of the Tsimlyanskoye Reservoir in the Modern Period
Researchers investigated microplastic distribution patterns and water quality in Tsimlyanskoye Reservoir in Russia, characterizing spatial variation in particle abundance and composition across the reservoir's water area in the current period.
First evidence of microplastic occurrence in the marine and freshwater environments in a remote polar region of the Kola Peninsula and a correlation with human presence
Researchers documented the first evidence of microplastic contamination — both fibers and fragments — in the marine waters of the Barents Sea and remote freshwater lakes of the Kola Peninsula, with levels correlating to the degree of local human activity.
Microplastics in Freshwater: A Focus on the Russian Inland Waters
This review synthesizes data on microplastic pollution in Russian inland waters, finding that synthetic polymer particles are accumulating across rivers, lakes, and groundwater systems, with fibers and fragments being the most prevalent forms detected.
A global snapshot of microplastic contamination in sediments and biota of marine protected areas
A global snapshot of microplastic contamination in sediments and biota across marine protected areas (MPAs) found that microplastics are ubiquitous even in these conservation zones, undermining their protective function. The review synthesizes occurrence data and calls for microplastic monitoring to be integrated into MPA management plans.
Microplastic pollution and associated trace metals in freshwater ecosystems within protected natural areas: the case of a biosphere reserve in Mexico
Researchers determined microplastic presence and associated trace metal contamination in rivers, reservoirs, and lakes within a UNESCO biosphere reserve in Mexico -- one of the first studies of freshwater microplastics in a Mexican protected area. Microplastics and co-occurring trace metals were found throughout the reserve's freshwater systems, demonstrating that even protected natural areas are not shielded from plastic pollution.
Microplastics in Surface Waters of the Russian Arctic Seas: Distribution, Concentration, Identification, and Eco-Risks for Fish
Microplastics were detected across surface waters of the Russian Arctic seas, with concentrations and polymer types varying by region and season. The findings document that even high-latitude Arctic waters are not spared from microplastic contamination, likely transported by ocean currents and rivers.
Sources Affecting Microplastic Contamination in Mountain Lakes in Tatra National Park
Analysis of 11 Tatra National Park mountain lakes found that global atmospheric transport was the dominant microplastic source rather than local tourism activity, with lake morphometry and elevation influencing contamination levels in these UNESCO-protected alpine ecosystems.
Study of microplastic content in fish in the Neva River and Lake Ladoga
Researchers examined microplastic contamination in fish from the Neva River and Lake Ladoga in Russia, situating the findings within the global context of widespread plastic pollution in aquatic ecosystems. The study highlighted the difficulty of natural plastic decomposition and the ongoing accumulation of microplastics in freshwater systems, with UNESCO estimates of 8-10 million tonnes entering seas annually.
Microplastic contamination of sandy beaches of national parks, protected and recreational areas in southern parts of the Baltic Sea
Researchers found microplastic contamination in all 51 surface beach sand samples across seven sites along the southern Baltic Sea, including national park and protected areas, at a mean of 68 items/kg dry weight. Expanded polystyrene fragments were the most common type (~38%), and protected areas did not differ substantially from recreational beaches.
Study of microplastic pollution in the seas of the Russian Arctic and the Far East
This study investigated microplastic pollution in seas of the Russian Arctic and Far East, regions that have received less scientific attention. Despite their remoteness, microplastics were detected, raising concern about contamination of pristine polar ecosystems.
Microplastic Concentrations in Sediments and Waters Do Not Decrease in Two Rivers Flowing Through the Kruger National Park, South Africa
Researchers quantified 36,984 microplastics in riverbed sediments and water across two rivers flowing through South Africa's Kruger National Park, examining whether microplastic concentrations decreased within this protected natural area. Concentrations did not decrease along the river gradient through the park, suggesting that protected area status alone is insufficient to prevent or reduce ongoing microplastic accumulation in freshwater systems.
Microplastics in freshwater lakes: A case study from Southern India
Researchers assessed microplastic contamination in Vellayani Lake, a major drinking water source in southern India, and found particles present across all sampling sites and seasons. Fibers were the most common shape, with polyethylene and polypropylene as the dominant polymer types, likely originating from domestic wastewater and fishing activities. The study highlights the need for monitoring microplastic pollution in freshwater lakes that serve as critical drinking water supplies.
The effect of tourism on microplastic pollution amount in Baltic Sea Region lakes
Researchers measured microplastic pollution in surface water and sediments from 10 lakes in Latvia, Lithuania, and Poland across spring, summer, and autumn 2023, finding that tourism pressure in lake catchment areas correlates with elevated microplastic contamination levels.
Early Detection of Microplastic Contamination in Fishes In The Sukamade Shoreline, Meru Betiri National Park
Microplastic contamination was detected in fish caught along the Sukamade shoreline in Meru Betiri National Park, Indonesia, providing early warning evidence that even conservation areas are subject to plastic pollution. The study aimed to establish a baseline for monitoring MP contamination in fish from this protected coastal ecosystem.
Early Detection of Microplastic Contamination in Fishes In The Sukamade Shoreline, Meru Betiri National Park
This early-detection study found microplastic contamination in fish from the Sukamade shoreline of Meru Betiri National Park, Indonesia—a conservation area—underscoring the risk microplastics pose to biodiversity even in protected coastal ecosystems.