Comparison of microplastic pollution in different water bodies from urban creeks to coastal waters

Luo, Wenya; Su, Lei; Craig, Nicholas; Du, Fangni; Wu, Chengxi; Shi, Huahong

doi:10.1016/j.envpol.2018.11.081

Cited by 386 publications

(112 citation statements)

References 46 publications

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“…Inland rivers had a low microplastic abundance (9.8 ± 12.2 items m − 3 ) in surface water, with three sampling sites having no detectable microplastics. This is consistent with results of a previous study, which indicated that some sections of urban creeks in Shanghai have low microplastic abundances (80 items m − 3 ) [18]. The movement of microplastics may be subject to flow conditions, vegetation patterns, and water levels in particular rivers, which have a significant impact on their transport [50].…”

Section: Distribution Characteristics Of Microplastics Around the Yansupporting

confidence: 92%

“…Several studies have separately reported the occurrence of microplastics in surface water or sediment of the Yangtze Estuary, and different volumes of samples were collected and analyzed. A total of 43 water samples (5 L per sample) from the Yangtze River and the East China Sea were analyzed with average abundance around 900 items m − 3 [18]. By using a Teflon pump and neuston trawls to sample 12-20 L water in the Yangtze Estuary, Zhao obtained a range of microplastic abundances from 500 to 10,200 items m − 3 [19].…”

Section: Introductionmentioning

confidence: 99%

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Microplastics in surface water and sediments of Chongming Island in the Yangtze Estuary, China

Zheng

et al. 2020

Environ Sci Eur

153

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Background: The Yangtze Estuary acts as gateways where microplastics transport from freshwater into marine environments, with one of the largest discharge volumes in the world. The occurrence of microplastics in surface water and sediments of the Yangtze Estuary has been reported. However, little is known about microplastics in and around Chongming Island in the estuary. In this study, the distribution of microplastics in surface water and sediments of Chongming Island was investigated and compared in different environmental medium.Results: Abundances of microplastics in surface water and sediments were in the ranges of 0-259 items m − 3 and 10-60 items kg − 1 dry weight, respectively. Microplastics were more abundant in the surface water of the Yangtze River shores than in the inland rivers (p < 0.01). Proportions in fiber form in surface water and sediment were 33% and 67%; and those in fragment form were 39% and 24%. Most particles (> 72%) were < 1 mm in the longest dimension; 65% were white and 30% were transparent. Of the 11 compositions identified, polyethylene, polypropylene, and α-cellulose predominated in both phases.Conclusion: This is the first study to focus on microplastics in inland watercourses on Chongming Island and along the Yangtze River's shores in both phases. There were differences between the island and estuary in composition and density due to the distinct vertical mixing processes. The in situ filtration of surface water (100 L) sampling method was well employed in various freshwater environments and free of plastic materials in front of the filter, analysis results of which provided an important baseline reference for evaluating microplastic pollution in the Yangtze Estuary. Publisher's NoteSpringer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Section: Distribution Characteristics Of Microplastics Around the Yansupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Microplastics in surface water and sediments of Chongming Island in the Yangtze Estuary, China

Zheng

et al. 2020

Environ Sci Eur

153

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“…Ref. [6] used a similar technique, with a similar lower size limit on urbanized streams and coastal water around Shanghai, China, and found between 8 × 10 1 to 7.4 × 10 3 item m −3 .…”

Section: Mps In the Water Phasementioning

confidence: 99%

“…However, the relative contribution of the various land-based MPs sources and their pathways to the environment are not well understood, leaving numerous uncertainties regarding which sources are dominant [4]. MPs are present in lakes and rivers, showing that freshwaters receive MPs from land-based sources and also transport MPs to the oceans [5,6]. Urban activities and population densities have been shown to affect the occurrence of MPs in rivers.…”

Section: Introductionmentioning

confidence: 99%

Microplastics in a Stormwater Pond

Olesen

Stephansen

Alst

et al. 2019

Water

108

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Large amounts of microplastics (MPs) enter our environment through runoff from urban areas. This study presents results for MPs in stormwater from a wet retention pond in terms of its water, sediments, and vertebrate fauna. The analysis was done for the size range 10–500 μm, applying a focal-plane array-based µFourier transform infrared (FPA-µFTIR) imaging technique with automated data analysis. Sample preparation protocols were optimized towards this analytical method. The study revealed 270 item L−1 in the pond water, corresponding to 4.2 µg L−1. The MPs in the pond were highly concentrated in its sediments, reaching 0.4 g kg−1, corresponding to nearly 106 item kg−1. MPs also accumulated in vertebrates from the pond—three-spined sticklebacks and young newts. In terms of particle numbers, this accumulation reached levels nearly as high as in the sediments. The size of the MPs in the pond water and its fauna was quite similar and significantly smaller than the MPs in the sediments. A rough estimate on MPs retention in the pond indicated that MPs were retained at efficiencies similar to that of other particulate materials occurring in the stormwater runoff.

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“…In addition, microplastics are theorized to collect in river waterways on their pathway towards entering the ocean --thus transferring inland consumer products into the ocean as microplastic particles [5][6][7][8]. Researchers in China attempted to define the extent to which particle concentration differs from inland water sources to the ocean and concluded that inland freshwater sources displayed higher particle concentrations than oceanic or estuarine test sites [9]. On top of that, one recent study has reported that microplastic particles were found in human fecal materials [10].…”

Section: Definition and Scopementioning

confidence: 99%

Review of Microplastic Pollution in the Environment and Emerging Recycling Solutions

Reimonn¹,

Lu²,

Gandhi³

et al. 2019

Journal of Renewable Materials

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Microplastic pollution represents a side-effect stemming from a global plastic waste mismanagement problem and includes degraded particles or mass produced plastic particles less than 5 mm in largest dimension. The small nature of microplastics gives this area of pollution different environmental concerns than general plastic waste in the environment. The biological toxicity of particles, their internal components, and their surface level changes all present opportunities for these particles to adversely affect the environment around them. Thus, it is necessary to review the current literature surrounding this topic and identify areas where the study of microplastic can be pushed forward. Here we present current methods in studying microplastics, some of the ways by which microplastics affect the environment and attempt to shed light on how this research can continue. In addition, we review current recycling methods developing for the processing of mixed-plastic waste. These methods, including hydrothermal processing and solvent extraction, provide a unique opportunity to separate plastic waste and improve the viability of the plastics recycling industry.

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Comparison of microplastic pollution in different water bodies from urban creeks to coastal waters

Cited by 386 publications

References 46 publications

Microplastics in surface water and sediments of Chongming Island in the Yangtze Estuary, China

Microplastics in surface water and sediments of Chongming Island in the Yangtze Estuary, China

Microplastics in a Stormwater Pond

Review of Microplastic Pollution in the Environment and Emerging Recycling Solutions

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