Occurrence, potential sources, and ecological risk assessment of microplastics in the inland river basins in Northern China

被引：7

作者：

Gan, Mufan ^{[1
]}

Zhang, Yan ^{[1
]}

Shi, Peng ^{[2
]}

Cui, Lingzhou ^{[3
]}

Zhang, Chengqian ^{[1
]}

Guo, Jiahua ^{[1
]}

机构：

[1] Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Carr, Xian 710127, Peoples R China

[2] Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg, Xian 710048, Peoples R China

[3] Wenzhou Univ, Coll Life & Environm Sci, Wenzhou 325035, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2024年 / 205卷

基金：

中国国家自然科学基金;

关键词：

Microplastic; Occurrence; Ecological risk assessment; Urban River; POLLUTION; ENVIRONMENT; SEDIMENTS; SEA;

D O I：

10.1016/j.marpolbul.2024.116656

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Microplastics (MPs) are the pollutants, found widely across various environmental media. However, studies on the MP pollution in urban rivers and the necessary risk assessments remain limited. In this study, the abundance and characteristics of microplastics in a typical urban river were examined to evaluate their distribution, sources, and ecological risks. It was observed that the abundance of MPs in sediments (220-2840 items & sdot;kg(-1) dry weight (DW)) was much higher than that in surface water (2.9-10.3 items & sdot;L- 1), indicating that the sediment is the "sink" of river MPs. Surface water and sediment were dominated by small particle size MPs (< 0.5 mm). Fiber and debris were common shapes of MPs in rivers and sediments. The microplastics in river water and sediments were primarily white and transparent, respectively. Polypropylene (PP) and polyethylene (PE) were the major polymers found.

引用

页数：11

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