Global sources, abundance, size, and distribution of microplastics in marine sediments - A critical review

Perumal, Karthikeyan; Muthuramalingam, Subagunasekar

doi:10.1016/j.ecss.2021.107702

Cited by 68 publications

(5 citation statements)

References 158 publications

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“…For example, in Topic 1, "sea", "marine", "ocean", "beaches", "beach", "coast", and "bay" re ected the most frequently studied areas; "surface", "surfaces", "sediment", "sand", "seawater", and "ice" re ected the locations where sampling was most frequently performed; "debris", "fragment", "pellet", " ber", and " bre" re ected the most common shapes of detected microplastics; and "polyethylene", "polypropylene", and "polystyrene" re ected the most frequently detected polymer types. These Topic 1 results were similar to the results summarized in recent reviews by Perumal and Muthuramalingam (2022) and Nouha et al (2021). As another example, in Topic 6, "sediment", "soil", and "organism" re ected the most frequently studied samples; "digestion", "density", "separation", and " lter" re ected the separation procedure; "microscopy", "spectroscopy", " uorescence", "spectrometry", and "raman" re ected the most used identi cation methods.…”

Section: Research Topics Generated By Lda-bert Topic Modelingsupporting

confidence: 90%

Topic modeling discovers trending topics in global research on the ecosystem impacts of microplastics

Gong,

Hu,

Zhang

et al. 2023

Preprint

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The ecological threats of microplastics have sparked research worldwide. However, changes in the topics of microplastic research over time and space have not been evaluated quantitatively, making it difficult to identify the next frontiers. Here, we apply topic modeling to assess global spatiotemporal dynamics of microplastic research. We identified nine leading topics in current microplastic research. Over time, microplastic research topics have switched from aquatic to terrestrial ecosystems, from distribution to fate, from ingestion to toxicology, and from physiological toxicity to cytotoxicity and genotoxicity. In most of the nine leading topics, a disproportionate amount of independent and collaborative research activity was conducted in and between a few developed countries which is detrimental to understanding the environmental fates of microplastics in a global context. This review recognizes the urgent need for more attention to emerging topics in microplastic research, particularly in regions that are heavily impacted but currently overlooked.

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Section: Research Topics Generated By Lda-bert Topic Modelingsupporting

confidence: 90%

Topic modeling discovers trending topics in global research on the ecosystem impacts of microplastics

Gong,

Hu,

Zhang

et al. 2023

Preprint

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“…Ref. [120] posited that microplastic contamination in marine environments became a global environmental and public health concern between 2010 and 2020. [12,14,20,22,40,42,43,49,58,64,74,89,93,106,109,111,114,116,117,.…”

Section: Forest Plotmentioning

confidence: 99%

The Abundance of Microplastics in the World’s Oceans: A Systematic Review

Mutuku,

Yanotti,

Tocock

et al. 2024

Oceans

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Microplastics are ubiquitous in marine environments and have been documented across all ocean compartments, especially surface waters, across the world. Even though several studies identify the presence of microplastics in the world’s five oceans, there remains an overt problem of large inconsistencies in their sampling, extraction, and consequent quantification. Despite the complexity of these methodologies, researchers have tried to explore microplastic abundance in ocean surface waters. Using a systematic review approach, a dataset was derived from 73 primary studies undertaken since the year 2010 following the Oslo and Paris Conventions (OSPAR) guidelines to monitor and harmonise marine debris. The results showed differences in the abundance and distribution of microplastics in surface waters across oceans. The overall concentration of microplastics in all five oceans ranged between 0.002 and 62.50 items/m3, with a mean abundance of 2.76 items/m3. The highest mean concentration of microplastics was found in the Atlantic (4.98 items/m3), while the least was observed in the Southern Ocean (0.04 items/m3). While challenging, this paper recommends harmonisation of the sampling, separation, and identification methods across the globe to aid in the design of the appropriate mitigation strategies for reducing marine plastic pollution.

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“…The VOSViewer software (version 1.6.17) can create cluster maps that are based on the data network, and it also allows us to visualize and investigate them (Van Eck and Waltman, 2021). These graphic representations may include different types of outputs (e.g., authors, keywords, journals), and they are realized using citations, bibliographic couplings, co-citations, or co-author relationships (Perumal and Muthuramalingam, 2021). In this study, we examine in depth the relationships between researchers, countries, and keywords.…”

Section: Bibliometric Network Analysismentioning

confidence: 99%

“…The term 'scientometrics' refers to the study of the scientific literature through measurement and analysis (Perumal and Muthuramalingam, 2021). Bibliometry is a fundamental subfield of scientometrics, and it was first introduced by Pritchard in 1969 (Duan et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Remote sensing of sea surface salinity: A bibliometric analysis

et al. 2022

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In recent years, rapid advances in technologies have allowed significant positive changes within the field of satellite observations of the global ocean. This paper reviews the available global scientific literature that focuses on the study of salinity by remote sensing, tracking its evolution and trends by combining social network analysis and bibliometrics. Furthermore, the study shows the relationships and co-occurrences between authors, countries and keywords retrieved from the abstracts and citations database provided by Scopus. An analysis of 581 publications has been carried out. The achieved results, which highlight a worldwide increase in scientific interest in this field over the last decade, may constitute a useful tool for a global vision and for a potential improvement in the international efforts employed in the study of salinity from remote sensing.

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Global sources, abundance, size, and distribution of microplastics in marine sediments - A critical review

Cited by 68 publications

References 158 publications

Topic modeling discovers trending topics in global research on the ecosystem impacts of microplastics

Topic modeling discovers trending topics in global research on the ecosystem impacts of microplastics

The Abundance of Microplastics in the World’s Oceans: A Systematic Review

Remote sensing of sea surface salinity: A bibliometric analysis

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