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Current patterns and trends of microplastic pollution in the marine environment: A bibliometric analysis

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Abstract

Microplastics are pervasive in the natural environment and pose a growing concern for global health. Plastic waste in marine environments has emerged as a global issue, threatening not only marine biota but also human health due to its implications for the food chain. This study aims to discern the patterns and trends of research, specifically on Marine Microplastic Pollution (MMP), based on a bibliometric analysis of scientific publications from 2011 to 2022. The methodology utilized in this study comprises three stages: (a) creating a bibliographical dataset from Scopus by Elsevier and the Web of Science Core Collection by Clarivate Analytics, (b) analyzing current research (trends and patterns) using bibliometric analysis through Biblioshiny tool, and (c) examining themes and subthemes in MMP research (wastewater treatment, plastic ingestion, the Mediterranean Sea, microplastics pollution, microplastics in freshwater, microplastic ingestion, plastic pollution, and microplastic pollution in the marine environment). The findings reveal that during the studied period, the number of MMP publications amounted to 1377 articles, with an average citation per publication of 59.23 and a total citation count of 81,553. The most cited article was published in 2011, and since then, the number of publications on this topic has been increasing steadily. The author count stood at 5478, with 22 trending topics identified from the 1377 published titles. Between 2019 and 2022, the countries contributing most to the publication of MMP articles were China, the United States of America (USA), and the United Kingdom (UK). However, a noticeable shift in the origin of author countries was observed in the 2019–2022 timeframe, transitioning from a dominance by the USA and the UK to a predominance by China. In 2019, there was a substantial increase in the volume of publications addressing the topic of microplastics. The results show that the most prevalent themes and subthemes pertained to MMP in the Mediterranean Sea. The journals with the highest number of MMP articles published were the Marine Pollution Bulletin (253 articles) and Science of the Total Environment (190 articles). The analysis concludes that research on MMP remains prominent and appears to be increasing each year.

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Manoranjan Mishra: Writing—review & editing. Desul Sudarsan: Conceptualization, Writing—original draft, Visualization. Celso Augusto Guimarães Santos: Visualization, Writing—review & editing. Richarde Marques da Silva: Visualization, Writing—review & editing. Santosh Kumar Beja: Writing—review & editing. Suman Paul: Writing—review & editing. Pragati Bhanja: Writing—review & editing.

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Correspondence to Celso Augusto Guimarães Santos.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Mishra, M., Sudarsan, D., Santos, C.A.G. et al. Current patterns and trends of microplastic pollution in the marine environment: A bibliometric analysis. Environ Sci Pollut Res 31, 22925–22944 (2024). https://doi.org/10.1007/s11356-024-32511-x

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  • DOI: https://doi.org/10.1007/s11356-024-32511-x

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