Composition and Distribution of Microplastics in the Water and Sediments of Urban Rivers in Beijing

被引：0
|
作者：
Hu J.-M. [1 ]
Zuo J.-E. [1 ,2 ]
Li D. [1 ]
Xie Z.-W. [1 ]
Chen L. [1 ]
机构：
[1] State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing
[2] Shenzhen International Graduate School, Tsinghua University, Shenzhen
来源：
Zuo, Jian-E (jiane.zuo@mail.tsinghua.edu.cn); Zuo, Jian-E (jiane.zuo@mail.tsinghua.edu.cn) | 1600年 / Science Press卷 / 42期
关键词：
Composition; Distribution; Microplastics; River water; Sediments; Urban rivers;
D O I：
10.13227/j.hjkx.202102107
中图分类号：
学科分类号：
摘要：
It has been confirmed that microplastics widely exist in the natural environment, causing potential harm to organisms and humans. An investigation into the occurrence of microplastics is helpful to understand the level of pollution of microplastics in urban rivers and sediments. In this study, eight sampling points of water samples and three of sediments samples were placed along the North Canal and Huaihe River in Beijing, to compare the composition and distribution characteristics of the abundance, particle size, color, shape, and species of microplastics. The results showed that the abundance of microplastics in the water and sediments of the North Canal were(1 941±201)-(8 155±1 781)n•m-3(n refers to the number of microplastics) and (120±11)-(268±31)n•kg-1, respectively. The average abundance of microplastics in the water of the North Canal was 4 160 n•m-3. Compared with the North Canal, the pollution degree of microplastics in the Huaihe River was lower with an average abundance of 2 357 n•m-3. Furthermore, the abundance of microplastics in the water and sediments in the upper reaches of the North Canal was higher than that in the lower reaches. No significant difference of microplastics distribution was observed in the water of the Huaihe River on the whole; however, there was a marked difference in abundance between the two distant locations. The main particle size range of microplastics at all site points was<300 μm, and mostly white/transparent(50.75%-83.91%); the main shape were fragments(50.00%-95.08%)and fibers(3.86%-30.00%). Polyurethane(PU)and ethylene vinyl acetate(EVA)were two main plastic species found at all sites. Microplastics in the water and sediments of the North Canal might have originated from urban construction and development, while the surrounding villages might have only affected the abundance of microplastics in the Huaihe River. © 2021, Science Press. All right reserved.
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页码：5275 / 5283
页数：8
相关论文
共 23 条
  • [1] Qu H, Ma R X, Wang B, Et al., Enantiospecific toxicity, distribution and bioaccumulation of chiral antidepressant venlafaxine and its metabolite in loach(Misgurnus anguillicaudatus)co-exposed to microplastic and the drugs, Journal of Hazardous Materials, 370, pp. 203-211, (2019)
  • [2] Geyer R, Jambeck J R, Law K L., Production, use, and fate of all plastics ever made, Science Advances, 3, 7, (2017)
  • [3] Thompson R C, Olsen Y, Mitchell R P, Et al., Lost at sea: where is all the plastic?, Science, 304, 5672, (2004)
  • [4] Pan X, Lin L, Zhang S, Et al., Composition and distribution characteristics of microplastics in Danjiangkou Reservoir and its tributaries, Environmental Science, 42, 3, pp. 1372-1379, (2021)
  • [5] Egessa R, Nankabirwa A, Ocaya H, Et al., Microplastic pollution in surface water of Lake Victoria, Science of the Total Environment, 741, (2020)
  • [6] Li W H, Jian M F, Liu S L, Et al., Occurrence relationship between microplastics and heavy metals pollutants in the estuarine sediments of Poyang Lake and the Yangtze River, Environmental Science, 41, 1, pp. 242-252, (2020)
  • [7] Forster N A, Tighe M K, Wilson S C., Microplastics in soils of wilderness areas: what is the significance of outdoor clothing and footwear?, Geoderma, 378, (2020)
  • [8] Zhang Z Y, Mamat Z, Chen Y G., Current research and perspective of microplastics(MPs)in soils(dusts), rivers(lakes), and marine environments in China, Ecotoxicology and Environmental Safety, 202, (2020)
  • [9] Zhu L, Wang H, Chen B J, Et al., Microplastic ingestion in deep-sea fish from the South China Sea, Science of the Total Environment, 677, pp. 493-501, (2019)
  • [10] Wang S D, Zhang C N, Pan Z K, Et al., Microplastics in wild freshwater fish of different feeding habits from Beijiang and Pearl River Delta regions, south China, Chemosphere, 258, (2020)
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