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Development of a digestion method for determining microplastic pollution in vegetal-rich clayey mangrove sediments

The Science of The Total Environment 2019 89 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Jiehan Duan, Yang Yang, Yang Yang, Yang Yang, Yang Yang, Jiehan Duan, Jiehan Duan, Jiehan Duan, Jiehan Duan, Jiehan Duan, Jie Han, Jiehan Duan, Jiehan Duan, Jiehan Duan, Jiehan Duan, Jiehan Duan, Yang Yang, Yang Yang, Yang Yang, Yang Yang, Jiehan Duan, Jiehan Duan, Jie Han, Jie Han, Jie Han, Jie Han, Jie Han, Jiehan Duan, N.F.Y. Tam, Haichao Zhou, Yang Yang, N.F.Y. Tam, Siu Gin Cheung Jie Han, Siu Gin Cheung N.F.Y. Tam, Siu Gin Cheung Siu Gin Cheung N.F.Y. Tam, N.F.Y. Tam, N.F.Y. Tam, N.F.Y. Tam, N.F.Y. Tam, N.F.Y. Tam, Siu Gin Cheung Siu Gin Cheung Siu Gin Cheung Yat Long Lau, Siu Gin Cheung Yat Long Lau, Jie Han, Siu Gin Cheung Siu Gin Cheung N.F.Y. Tam, Siu Gin Cheung Siu Gin Cheung Siu Gin Cheung Siu Gin Cheung Wenwen An, Siu Gin Cheung N.F.Y. Tam, Yang Yang, Siu Gin Cheung Siu Gin Cheung Siu Gin Cheung Jie Han, Wenwen An, N.F.Y. Tam, Siu Gin Cheung N.F.Y. Tam, Haichao Zhou, Haichao Zhou, Jie Han, N.F.Y. Tam, Yang Yang, Yang Yang, Pingping Wei, Siu Gin Cheung Siu Gin Cheung Siu Gin Cheung Yang Yang, N.F.Y. Tam, Yang Yang, N.F.Y. Tam, Siu Gin Cheung Yang Yang, Siu Gin Cheung Haichao Zhou, Siu Gin Cheung Siu Gin Cheung Siu Gin Cheung Siu Gin Cheung Yang Yang, Yang Yang, Yang Yang, Haichao Zhou, Yang Yang, Yang Yang, N.F.Y. Tam, N.F.Y. Tam, N.F.Y. Tam, Siu Gin Cheung Siu Gin Cheung Yang Yang, Haichao Zhou, Siu Gin Cheung Siu Gin Cheung

Summary

Researchers developed a three-stage hydrogen peroxide digestion method specifically designed for extracting microplastics from vegetal-rich clayey mangrove sediments, where classical digestion methods fail to adequately remove organic litter. The new method achieved high efficiency in removing vegetal matter while preserving the integrity of five polymer types as confirmed by FTIR analysis.

Study Type Environmental

Microplastics are ubiquitous pollutants found in environments. Mangrove sediments containing vegetal litter are different from other environmental matrices such as river and marine sediments. The presence of vegetal litter leads to an under-estimation of microplastic pollution, particularly classical digestion methods are not suitable for removing this type of organic matter. The present study aims to develop a digestion method to remove vegetal litter and improve the determination of microplastic pollution in mangrove sediments. Results showed that our three-stage method with repeatedly addition of hydrogen peroxide had the highest efficiency in removing mangrove vegetal litter when compared with the three classical digestion methods. The high match scores of Fourier Transform Infrared Spectroscopy proved that the developed method had little impacts on the integrity of five polymer types of microplastics. The developed method also achieved high efficiency in extracting microplastics from mangrove sediments containing different content of vegetal litter. CAPSULE: A digestion method was developed for extracting microplastics in clayey mangrove sediments rich in vegetal litter.

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