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Distribution Characteristics and Pollution Evaluation of Heavy Metals in Surface Sediments in China’s Largest Freshwater Lake
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Researchers mapped the spatial distribution of eight heavy metals in surface sediments across and around Poyang Lake — China's largest freshwater lake — using Kriging interpolation and pollution indices to identify contamination hotspots and anthropogenic versus geogenic sources.
The spatial distribution characteristics and pollution sources of eight heavy metals Mercury (Hg), Copper (Cu), Lead (Pb), Cadmium (Cd), Zinc (Zn), Arsenic (As), Chromium (Cr) and Nickel (Ni) in the sediments around and within Poyang Lake were studied using the Kriging interpolation method, Pe...
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Distribution and characteristics of microplastics in the sediments of Poyang Lake, China
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Researchers found microplastic contamination in sediments across Poyang Lake, China, with abundances ranging from 11 to 3,153 items per kilogram dry weight, and identified significant spatial variability linked to human activity and hydrological conditions.
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.
[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.
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.
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.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.