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Distribution characteristics and risk assessment of microplastics in Lake Bosten

2025 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 43 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Bingyu Wang, Bingyu Wang, Bingyu Wang, Jianjiang Lu, Jianjiang Lu, Jianjiang Lu, Jianjiang Lu, Jianjiang Lu, Jianjiang Lu, Jianjiang Lu, Bingyu Wang, Jianjiang Lu, Liru Wang, Liru Wang, Liru Wang, Jianjiang Lu, Bingyu Wang, Jinfeng Xiao, Jinfeng Xiao, Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Jinfeng Xiao, Bingyu Wang, Guangxu Liu Jinfeng Xiao, Bingyu Wang, Guangxu Liu Yunfeng Chai, Yunfeng Chai, Yunfeng Chai, Bingyu Wang, Bingyu Wang, Xiaoxiao Li, Xiaoxiao Li, Xiaoxiao Li, Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu Guangxu Liu

Summary

Lake Bosten in northwestern China — a large, semi-closed lake in an arid region — was found to be significantly contaminated with microplastics, with concentrations varying by location and season in both surface water and sediments. Transparent fibers were the most common type, likely originating from agricultural plastics and textile sources prevalent in the region. The study also conducted a risk assessment suggesting that microplastic pollution in the lake poses an ecological concern for aquatic organisms living there.

Polymers

PP rubber

Study Type Environmental

<title>Abstract</title> As emerging global contaminants, microplastics (MPs)’ environmental fate and risks have expanded from marine to freshwater systems, yet semi-closed arid lakes remain understudied. This study systematically evaluates MPs pollution in Bosten Lake, revealing abundances of 1.33–9.43 n/L (surface water) and 151.55–953.31 n/kg (sediments) with pronounced spatiotemporal heterogeneity. Spatial hotspots correlated with functional zones: pastoral (B8), transportation (B2, B10), and tourism areas (B11, B12) were primary sources, driven by agricultural plastics, tire wear particles, and tourism debris. Temporally, dry season MPs in water increased by 32.4% due to prolonged hydraulic retention. White (54.09%) and black (30.07%) are the dominant components of MPs in Lake Bosten, with 0.1–0.5 mm, fibrous polypropylene MPs being the most common. Ecological Risk Index (RI) showed seasonal divergence: 92.3% of wet season sediment sites exhibited extreme risks (RI > 1000, e.g., inflow area B13), while dry season RI declined to moderate levels (e.g., B8 decreased from 1335.13 to 188.22) via reduced terrestrial inputs and degradation. This highlights dual “hydrological-anthropogenic” drivers, necessitating dynamic controls during tourism peaks, fishing, and traffic surges to mitigate MPs risks in arid closed-basin lakes.

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