Microplastics’ Pollution and Risk Assessment in an Urban River: A Case Study in the Yongjiang River, Nanning City, South China

Zhang, Xin; Leng, Yifei; Liu, Xiaoning; Huang, Kai; Wang, Jun

doi:10.1007/s12403-018-00296-3

Cited by 92 publications

(17 citation statements)

References 51 publications

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“…For an integral estimation of microplastics contamination in the sediment of Lake Ulansuhai, results of the study have been compared with other sediment, as shown in Table . Comparing the content of microplastics in Lake Ulansuhai with other area, a view could be obtained that the content of it in this lake was lower than it in some lakes and rivers, such as Chiusi Lake in Italy (Fischer, Paglialonga, Czech, & Tamminga, ) and Yongjiang River (Zhang et al, ), whereas it was similar to some lake, such as Taihu Lake (Su et al, ). Heterogeneous plastic particle pollution can be contributed by some factors like net inflow into lakes, the environment around it and atmospheric flow, but frequent anthropogenic activities are the most prominent factor to this contamination (Barboza & Gimenez, ; Wessel, Lockridge, Battiste, & Cebrian, ).…”

Section: Resultsmentioning

confidence: 85%

“…The analogous outcomes were reported in the sediment of Taihu Lake, and content of microplastics in sediment of this lake was 11.0–234.6 items/kg dw (Su et al, ). Nevertheless, content of microplastics in sediment of Lake Ulansuhai was lower than that in some other lakes, such as the Three Gorges Reservoir, St. Lawrence River, and Yong jiang River, China (Di & Wang, ; Castañeda et al, ; Zhang et al, ). The outcome showed that there was a negative correlation between the content and size of microplastics—that is, the smaller the volume of it, the larger the quantity it had (Barnes, Galgani, Thompson, & Barlaz, ).…”

Section: Resultsmentioning

confidence: 95%

“…Since the lake has various contaminants, it is necessary to investigate whether there are microplastics in the sediment of the lake. There are many factors that should be considered for the selection of sampling points, such as the number of sampling points, the shape and the hydrology function zoning of the lake (Zhang, Leng, Liu, Huang, & Wang, ). In this study, we have selected nine sampling sites from a uniform partition of the lake, which was divided by a square (200 m × 200 mm).…”

Section: Methodsmentioning

confidence: 99%

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Microplastics in the sediment of Lake Ulansuhai of Yellow River Basin, China

Qin

Wang

et al. 2019

Water Environment Research

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As an emerging organic pollutant, microplastics in the ocean have been the subject of much study. However, there is a lack of research on freshwater environments, notably in sediment, China. Microplastics contamination in sediment of Lake Ulansuhai has been investigated in the study, and its concentration range was from 24 ± 7 to 14 ± 3 n/kg. Further, it exhibited a difference in spatial distribution with high content in the north zone of the lake far from the entrance of the drainage canal and it has a decreasing tendency with the flow from north to south in lake. Colored plastic particles acted as the dominated pollution type, and more than 79.69% of microplastics were smaller than 2 mm in size, existed as the form of fibers. FTIR results mirrored that the main types of microplastics were polyethylene, polyethylene terephthalate, polypropylene, and polyvinyl chloride. Results obtained from SEM/EDS showed that there were cracks, holes, and irregular curls on the surface of it, and these microplastics may provide attachment sites for other pollutants. The appearance of metallic elements such as Al, Ni, and Fe showed that microplastics and other pollutants in Lake Ulansuhai have a combined effect, which may aggravate the degree of pollution in the lake. © 2019 Water Environment Federation • Practitioner points• Microplastics were found in the sediment of Lake Ulansuhai with a spatial distribution characteristic. • Abundance and morphological characteristics such as shape, color, and size have been analyzed in the paper. • Polyethylene, polyethylene terephthalate, polypropylene, and polyvinyl chloride were the main types of microplastics in the sediment detected by FTIR. • There were metallic elements combined on the surface of microplastics increased risk of combined pollution.

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Section: Resultsmentioning

confidence: 85%

Section: Resultsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

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Microplastics in the sediment of Lake Ulansuhai of Yellow River Basin, China

Qin

Wang

et al. 2019

Water Environment Research

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“…Excessive development and utilization of the Yangtze River, as well as the poor river basin management will cause water pollution and decrease ecosystem functions. In the upper reaches of the Yangtze River, hydropower development is highly developed, which has significantly changed the temporal and spatial distribution characteristics of natural runoff and reduced the self-purification capacity of the water body (Cheng et al 2022 ; Ji and Zhang 2022 ; Jin et al 2022 ; Yang et al 2022 ; Zhang et al 2020b ). At the same time, the massive discharge of wastewater in the Yangtze River Economic Zone has caused water pollution.…”

Section: Water Resources In the Yangtze River Basinmentioning

confidence: 99%

Sustainable water resources development and management in large river basins: an introduction

Wang

et al. 2022

Environ Earth Sci

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Water resources are important in large basins which are important places for human habitation and industrial and agricultural development. The background of editing this thematic issue was introduced and the general water resources situation and water quality status in four major large river basins in the Asian and African continents were briefly summarized to give readers general pictures of water resources development and management in these basins, and these large river basins are the Yellow River Basin, the Yangtze River Basin, the Indus Basin, and the Nile Basin. The thematic issue papers were classified into four clustered topical categories, and the main points of the papers in this thematic issue were summarized. Finally, the perspectives of future sustainable water resources development and management in large river basins were proposed.

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“…The Yongjiang River, the tributary of Xijiang River in the Pearl River system, is located in Nanning City of China. As the most important drinking water source to Nanning City, the river provides 90% of the total water supply of Nanning City (Zhang et al, 2020). The total length of the mainstream is 133.8 km, with a watershed area of 73728 m 2 .…”

Section: Introductionmentioning

confidence: 99%

Modeling Spatial Patterns of Dissolved Oxygen and the Impact Mechanisms in a Cascade River

Zhong

Shan-xia

et al. 2021

Front. Environ. Sci.

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Dissolved oxygen (DO) concentration is an essential indicator for assessment of river ecosystems. A hydrodynamic and water quality mathematical model coupling one-dimensional and two-dimensional models is developed in this study. The characteristics of study area, flow velocity, temperature, and organic contamination are taken as consideration in the scenario setting. The changing processes of DO concentration are simulated in different scenarios, and the effects on DO concentration are discussed. Results indicate that: 1) A negative relation was present between DO concentration in Yongjiang River and releasing discharge of the Laokou hydro-project, since reoxygenation is greater than oxygen consumption along the river, DO concentration increases from upstream to downstream. 2) DO concentration increases with the releasing of DO in the water, which also varies along with the releasing of biochemical oxygen demand (BOD) concentration. Laokou exhibits the greatest increase of BOD, which ranges from 0.1 mg/L to 0.75 mg/L 3) The increasing of water temperature results in increased reoxygenation and a decrease in oxygen consumption. Our study shows that the water temperature increased from 19°C to 29 °C, and correspondingly saturated DO decreased from 9.25 mg/L to 7.54 mg/L. The study provides scientific support for ecology operation in the cascade river, and is expected to improve the water environment by reservoir regulation.

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Microplastics’ Pollution and Risk Assessment in an Urban River: A Case Study in the Yongjiang River, Nanning City, South China

Cited by 92 publications

References 51 publications

Microplastics in the sediment of Lake Ulansuhai of Yellow River Basin, China

Microplastics in the sediment of Lake Ulansuhai of Yellow River Basin, China

Sustainable water resources development and management in large river basins: an introduction

Modeling Spatial Patterns of Dissolved Oxygen and the Impact Mechanisms in a Cascade River

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