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Effects of anthropogenic discharge and hydraulic deposition on the distribution and accumulation of microplastics in surface sediments of a typical seagoing river: The Haihe River

Journal of Hazardous Materials 2020 99 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.

Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Shu Tao, Yang Liu, Yang Liu, JiaoDi Zhang, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, JiaoDi Zhang, JiaoDi Zhang, Yang Liu, JinAo You, JinAo You, Florian Breider Yang Liu, Florian Breider Yang Liu, JiaoDi Zhang, JiaoDi Zhang, JiaoDi Zhang, JinAo You, JinAo You, Florian Breider Yang Liu, Florian Breider Yang Liu, Florian Breider Yang Liu, Yang Liu, Florian Breider Yujun Li, Florian Breider Florian Breider Florian Breider Yang Liu, Florian Breider Florian Breider Yang Liu, Florian Breider Yujun Li, Yujun Li, Yujun Li, Yujun Li, Yi Tang, Yi Tang, Yujun Li, Yujun Li, Yang Liu, Yujun Li, JiaoDi Zhang, Yong He, Yong He, Yong He, Yujun Li, Shu Tao, Yang Liu, Florian Breider Florian Breider JiaoDi Zhang, Yujun Li, Shu Tao, Yujun Li, Florian Breider Yang Liu, Yang Liu, Florian Breider Florian Breider Yujun Li, JiaoDi Zhang, JiaoDi Zhang, JiaoDi Zhang, JiaoDi Zhang, Wenxin Liu, Shu Tao, Yong He, JiaoDi Zhang, JiaoDi Zhang, JiaoDi Zhang, JiaoDi Zhang, Yang Liu, Yang Liu, Florian Breider Wenxin Liu, Shu Tao, Shu Tao, Shu Tao, JinAo You, Yujun Li, Yujun Li, JinAo You, Yujun Li, Florian Breider Yujun Li, Yang Liu, Yang Liu, Florian Breider Shu Tao, Shu Tao, Wenxin Liu, Wenxin Liu, Wenxin Liu, Wenxin Liu, Wenxin Liu, Yang Liu, Florian Breider Yang Liu, Wenxin Liu, Yang Liu, Florian Breider Shu Tao, Shu Tao, Wenxin Liu, Florian Breider Florian Breider Florian Breider Wenxin Liu, Florian Breider

Summary

Researchers used a generalised additive model to quantify the effects of anthropogenic discharge and hydraulic deposition on microplastic distribution in surface sediments of the Haihe River in northern China, finding high abundances of 4,980 items per kg dry weight dominated by small polyethylene particles. The model revealed that multiple factors including discharge locations and river hydraulics together determine microplastic accumulation hotspots in seagoing rivers.

Polymers

HDPE PE

Study Type Environmental

Microplastics pollution in river systems has generated great concern; however, few studies have focused on the contributions of multiple influencing factors to microplastics in river systems. In the current study, we utilized data on microplastics in surface sediments from the Haihe River, a seagoing river in northern China to establish a generalized additive model (GAM) for quantifying the effects of multiple factors on the distribution of microplastics. A high abundance of microplastics (4980 ± 2462 items∙kg dry weight) was found. Small particles (< 1000 µm) accounted for a dominant proportion (44.8-61.0%). Polyethylene (PE) was the chief component with an averaged fraction of 49.3%, in which low- and high-density polyethylene contributed 90.7% and 9.3% of the PE, respectively. Microplastics abundance was positively correlated with sediment TOC and the silt fraction (p < 0.05) but negatively correlated with the sand fraction (p < 0.05). The GAM could explain approximate 60% of the total microplastics abundance, and dam (28.5%), sediment TOC (22.9%), and sewage effluent (17.6%) were the main contributors to total variations in microplastics abundance. Local sewage effluent acted as an important point source of microplastics discharge, and the dam on the river greatly affected the deposition and accumulation of microplastics.

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