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The current situation of water pollutants and pollution source in Poyang Lake: A review
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This review of pollution in China's largest freshwater lake, Poyang Lake, finds that microplastics are accumulating alongside heavy metals and elevated nitrogen and phosphorus from industrial discharge and human activity. Because Poyang Lake feeds the Yangtze River and supports major fisheries, microplastic buildup there has potential downstream consequences for aquatic ecosystems and the people who depend on them.
As the largest freshwater lake and the largest connecting lake in the Yangtze River basin, Poyang Lake stores abundant water resources, and undertakes multiple ecological functions. The water pollution of Poyang Lake is related to the ecological environment of the middle and lower reaches of the Yangtze River, and also affects the regional economic and social development. After sorting out and summarising other literatures, we analysed the main pollutants in Poyang Lake. The discharge of some industrial waste and frequent human activities are the main reasons for the increase of total phosphorus nitrogen, heavy metal pollutants and microplastic pollutants in Poyang Lake.
More Papers Like This
Occurrence and distribution of microplastics in China’s largest freshwater lake system
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Researchers found high levels of microplastics in both water and sediment across China's largest freshwater lake system, Poyang Lake, with concentrations up to 1,064 particles per cubic meter in water. The study reveals widespread contamination even in protected nature reserves, emphasizing the scale of the freshwater microplastics problem.
Microplastic abundance, distribution and composition in water, sediments, and wild fish from Poyang Lake, China
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Microplastics were measured in surface water, sediments, and fish (crucian carp) across Poyang Lake, China's largest freshwater lake, finding 5–34 items/L in water, 54–506 items/kg in sediments, and 0–18 items per fish, with heterogeneous spatial distribution related to anthropogenic and topographic factors. The study provides comprehensive multi-compartment baseline data on microplastic contamination in a major Chinese freshwater ecosystem.
Microplastics in the Sediments: From Rivers to Lakes Investigated in the Biggest Freshwater Lake (Poyang Lake) Basin and Yangtze River in China
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Microplastic pollution is widespread in the Yangtze River basin and Poyang Lake, China's largest freshwater lake, with sediment concentrations reflecting upstream urban and industrial inputs. Rivers and lakes serve as critical transport corridors for microplastics moving from land to ocean, making freshwater monitoring essential for understanding total plastic flux.
[Spatiotemporal distribution and multi-source characteristics of microplastics in the soil and water environment of Poyang Lake Wetland, China].
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Researchers investigated spatiotemporal patterns of microplastic contamination in surface water and sediments across Poyang Lake Wetland, China's largest freshwater lake, during both wet and dry seasons. Microplastic abundance in water ranged from 32 to 296 particles per liter and from 460 to 1,369 particles per kilogram in sediment, with levels higher than many comparable freshwater wetlands globally. Beads, fragments, films, and fibers were the dominant forms, with temporal and spatial differences observed across the sampled rivers and confluence zones.
Bioaccumulation effects of microplastics and heavy metals pollutants in the dominant freshwater fish species in the Longkou entry of Raohe River, Lake Poyang Basin
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Eight freshwater fish species from a Chinese lake all contained microplastics in their digestive tracts and gills, along with elevated heavy metals in their muscle tissue. The co-occurrence of microplastics and heavy metals in commonly consumed fish raises concerns about compounded food safety risks for people in this region.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.