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Atmospheric deposition of microplastics in a rural region of North China Plain

The Science of The Total Environment 2023 55 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Hanyue Zhang, Zhen Li, Zhen Li, Davey L. Jones, Jinɡjinɡ Li, Fobang Liu, Zhen Li, Zhen Li, Zhen Li, Kai Wang, Kai Wang, Kai Wang, Kai Wang, Siyang Ren, Siyang Ren, Siyang Ren, Jinrui Zhang, Jinrui Zhang, Jinrui Zhang, David R. Chadwick David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Jinrui Zhang, Siyang Ren, Xuejun Liu, Kai Wang, Kai Wang, Kai Wang, David R. Chadwick Zhen Li, Zhen Li, Zhen Li, Zhen Li, Zhen Li, Zhen Li, Davey L. Jones, Davey L. Jones, Jinrui Zhang, Davey L. Jones, Kai Wang, Davey L. Jones, Wen Xu, Davey L. Jones, Zhen Li, Siyang Ren, David R. Chadwick Davey L. Jones, Zhen Li, Jinrui Zhang, David R. Chadwick Jinrui Zhang, Davey L. Jones, Davey L. Jones, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Zhen Li, David R. Chadwick Daqi Huang, Jinɡjinɡ Li, David R. Chadwick Davey L. Jones, Xuejun Liu, Xuejun Liu, Zhen Li, Zhen Li, David R. Chadwick Xuejun Liu, Hanyue Zhang, Davey L. Jones, Wen Xu, Fobang Liu, Davey L. Jones, Davey L. Jones, Davey L. Jones, Hanyue Zhang, Kai Wang, Hanyue Zhang, David R. Chadwick Xuejun Liu, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Zhen Li, Zhen Li, Kai Wang, Kai Wang, Xuejun Liu, Hanyue Zhang, Xuejun Liu, Davey L. Jones, Wen Xu, Wen Xu, Davey L. Jones, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Zhen Li, Davey L. Jones, Davey L. Jones, Jinɡjinɡ Li, Davey L. Jones, Davey L. Jones, Hanyue Zhang, David R. Chadwick Kai Wang, Xuejun Liu, Xuejun Liu, Davey L. Jones, Mingyu Zhao, Davey L. Jones, Davey L. Jones, Siyang Ren, Davey L. Jones, Siyang Ren, Davey L. Jones, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick Xuejun Liu, Davey L. Jones, Davey L. Jones, David R. Chadwick Yuxuan Cao, Kai Wang, Xuejun Liu, Xuejun Liu, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick Samson Mofolo, David R. Chadwick Samson Mofolo, David R. Chadwick Davey L. Jones, David R. Chadwick Kai Wang, David R. Chadwick Jiexi Liang, Davey L. Jones, Jiexi Liang, David R. Chadwick Davey L. Jones, David R. Chadwick Zhen Li, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, Kai Wang, Davey L. Jones, Wen Xu, Davey L. Jones, David R. Chadwick Xuejun Liu, Kai Wang, David R. Chadwick David R. Chadwick Xuejun Liu, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Xuejun Liu, Xuejun Liu, David R. Chadwick

Summary

Researchers investigated atmospheric microplastic deposition in a rural area of the North China Plain, finding significant quantities of microplastics deposited through both dry and wet pathways, with fibers and polyethylene being the dominant types.

Polymers
Study Type Environmental

Microplastics (MPs) pollution is becoming one of the most pressing environmental issues globally. MPs in the marine, freshwater and terrestrial environments have been fairly well investigated. However, knowledge of the atmospheric-mediated deposition of MPs within rural environments is limited. Here, we present the results of bulk (dry and wet) atmospheric MPs deposition in a rural region of Quzhou County in the North China Plain (NCP). Samples of MPs in the atmospheric bulk deposition were collected for individual rainfall events over a 12-month period from August 2020 to August 2021. The number and size of MPs from 35 rainfall samples were measured by fluorescence microscopy, while the chemical composition of MPs was identified using micro-Fourier transform infrared spectroscopy (μ-FTIR). The results showed that the atmospheric MPs deposition rate in summer (892-75,421 particles/m/day) was highest compared to 735-9428, 280-4244 and 86-1347 particles/m/day in spring, autumn, and winter, respectively. Furthermore, the MPs deposition rates in our study were 1-2 orders of magnitude higher than those in other regions, indicating a higher rate of MPs deposition in the rural region of the NCP. MPs with a diameter of 3-50 μm accounted for 75.6 %, 78.4 %, 73.4 % and 66.1 % of total MPs deposition in spring, summer, autumn, and winter, respectively, showing that the majority of MPs in the current study were small in size. Rayon fibers accounted for the largest proportion (32 %) of all MPs, followed by polyethylene terephthalate (12 %) and polyethylene (8 %). This study also found that a significant positive correlation between rainfall volume and MPs deposition rate. In addition, HYSPLIT back-trajectory modelling showed that the farthest source of deposition MPs may have come from Russia.

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