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Characteristics, sources and influencing factors of atmospheric deposition of microplastics in three different ecosystems of Beijing, China

文献类型： 外文期刊

作者： Zhang, Ruixuan 1 ; Jia, Xiaoxu 2 ; Wang, Kang 1 ; Lu, Luli 1 ; Li, Fang 1 ; Li, Jing 2 ; Xu, Li 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Qual Stand & Testing Technol, Beijing 100097, Peoples R China

2.Chinese Acad Sci, Key Lab Ecosyst Network Observat, Beijing 100101, Peoples R China

3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China

4.Minist Agr, Risk Assessment Lab Agroprod Beijing, Beijing, Peoples R China

关键词： Atmospheric deposition; Microplastics; Characteristics; Influencing factors

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）

ISSN： 0048-9697

年卷期： 2023 年 883 卷

页码：

收录情况： SCI

摘要： As the research on microplastics (MPs) has intensified, more attention has been paid to MPs deposition in the atmo-sphere. This study further explores and compares the characteristics, the possible sources and influencing factors of de-position of MPs in three different ecosystems: forest, agricultural and residential area in Beijing. It was found that the deposited plastics were mostly white or black fibres, with PET and RY as the main MPs types. The range of deposition fluxes was 67.06-461.02 item m-2 d-1, with highest deposition in residential area and lowest in forest, significant dif-ferences in MPs characteristics between environments. Based on MPs composition and shape, combined with back-ward trajectory analysis, the main sources of MPs were found to be textiles. Deposition of MPs was found to be influenced by environmental and meteorological factors. Factors such as gross domestic product and population den-sity had a significant impact on the deposition flux, while wind played a diluting role for atmospheric MPs. The study investigated the characteristics of MPs in different ecosystems which may help to understand the transport patterns of MPs and is of great importance for the management of MPs pollution.

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