Divergent microplastic assemblages across natural and artificial waters in the Wei River Basin

Microplastics Pollution and Risk Assessment in Selected Surface Waters of the Wei River Plain, China

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Surface water sampling across the Wei River Plain in northwest China found microplastic concentrations of 4.67 to 12.3 particles per liter, with PE fibers under 0.5 mm dominating, and risk index analysis classifying contamination levels as high throughout the study area. These findings extend evidence of widespread inland microplastic pollution into a relatively understudied region of China, emphasizing the need for regulatory controls on plastic waste in agricultural and semi-arid watersheds.

Occurrence and Distribution Characteristics of Microplastics in Surface Water of China: a Review

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Researchers synthesized the literature on microplastic occurrence and distribution in Chinese surface waters, finding mean river concentrations ranging from 0.57 to 930 particles per liter, with fibers and sub-millimeter particles predominating and polypropylene and polyethylene as the most common polymers. As Chinese cities increasingly rely on surface water as drinking water sources, the high and variable microplastic loads documented across river and lake systems represent a direct human exposure pathway demanding stronger pollution monitoring and control.

Small-sized microplastics drive structural shifts in aquatic communities: Evidence from the Wei River Basin

Microplastics in Sediments of the Urban River Jinjiang: Sources, Distribution, and Risk Assessment

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Researchers mapped microplastic contamination in sediments of the Jinjiang River in China, finding concentrations ranging from 21 to 924 particles per kilogram of dry sediment, with domestic waste and laundry effluents as the dominant sources and moderate ecological risk levels across most of the river stretch.

A Review of the Distribution, Characteristics and Environmental Fate of Microplastics in Different Environments of China

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"A comprehensive review of 1,862 sampling sites across China found microplastics in every environmental medium studied—seawater, sediments, inland water, soils, and atmospheric fallout—with polypropylene, polyethylene, and PET as the dominant polymer types. China's scale as the world's largest plastic producer and user makes these findings especially alarming, highlighting the urgent need for standardized detection methods and stronger national pollution controls."