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标题：Tire Abrasion as a Major Source of Microplastics in the Environment
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作者：Frank Sommer ; Volker Dietze ; Anja Baum 等
期刊名称：Aerosol and Air Quality Research
印刷版ISSN：1680-8584
出版年度：2018
卷号：18
期号：8
页码：2014-2028
DOI：10.4209/aaqr.2018.03.0099
语种：English
出版社：Chinese Association for Aerosol Research in Taiwan
摘要：Traffic-related non-exhaust particulate matter mainly consists of tire wear, brake wear, and road wear. For this study, passive-samplers were placed near highly frequented roads in industrial, agricultural, and urban environments with the aim of collecting and characterizing super-coarse (> 10 µm) airborne particles. Single-particle analysis using SEM-EDX was conducted on more than 500 particles with nearly 1500 spectra to determine their size, shape, volume, and chemical composition. The ambient aerosol near all studied roads is dominated by traffic-related abrasion particles, amounting to approximately 90 vol%. The majority of the particles were composites of tire-, road-, and brake-abrasion material. The particle assemblages differed in size distribution, composition, and structure depending on driving speed, traffic flow, and traffic fleet. Our study documents that tire wear significantly contributes to the flux of microplastics into the environment. A decrease in the release of this abrasion material, however, is unlikely in the near future.
关键词：Microplastics;Tire wear;Road wear;Brake wear;SEM-EDX analysis;Chemical composition