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Microplastic pollution in urban green-belt soil in Shihezi City, China

Environmental Science and Pollution Research 2022 22 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Xiaodong Liu, Jianjiang Lu, Jianjiang Lu, Shaohua He, Jianjiang Lu, Jianjiang Lu, Shaohua He, Yanbin Tong, Yanbin Tong, Zilong Liu, Zilong Liu, Zilong Liu, Zilong Liu, Yanbin Tong, Zilong Liu, Zilong Liu, Zilong Liu, Weijun Li Xiaodong Liu, Zilong Liu, Zilong Liu, Yanbin Tong, Yanbin Tong, Nuerguli Xiayihazi, Nuerguli Xiayihazi, Nuerguli Xiayihazi, Nuerguli Xiayihazi, Weijun Li Nuerguli Xiayihazi, Zilong Liu, Nuerguli Xiayihazi, Jianjiang Lu, Zilong Liu, Jianjiang Lu, Weijun Li Nuerguli Xiayihazi, Nuerguli Xiayihazi, Weijun Li Weijun Li Weijun Li

Summary

Researchers found microplastic concentrations ranging from 287 to 3,227 particles per kilogram in urban green-belt soils in Shihezi City, China, with fibers dominating and polystyrene and polyethylene as the primary polymer types, pointing to atmospheric deposition and road runoff as key sources.

Polymers

PE PS

The problems are associated with microplastic (MP) pollution of global concern. However, little is known about the pollution characteristics and sources of MPs in urban green-belt soils. Therefore, this study investigated MP pollution in 11 sampling sites (22 green belts) in Shihezi City. The results showed that the abundance of MPs (0.02-5.00 mm) ranged from 287 ± 100 items/kg dw to 3227 ± 155 items/kg dw (mean + SD). Fibers (69.9%) accounted for the majority of MPs, and the MPs were mainly black (36.7%) and 0.02-0.5 mm (64.8%). The main types of MPs were polystyrene (PS) and polyethylene (PE). Compared with agricultural soil, the color and composition of green-belt soil MPs are diverse, which means that the source of green-belt soil MPs is more diverse. In different types of green-belt soil, MP pollution of industrial green land is more serious. Through cluster analysis and spatial distribution, fragments and fibers were found to have similar sources, mainly originating from food and textile industrial activities. This study provides important information for revealing MP pollutions in urban green-belt soils.

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