Articles | Volume 15, issue 8
https://doi.org/10.5194/acp-15-4117-2015
https://doi.org/10.5194/acp-15-4117-2015
Research article
 | 
21 Apr 2015
Research article |  | 21 Apr 2015

Characteristics of trace metals in traffic-derived particles in Hsuehshan Tunnel, Taiwan: size distribution, potential source, and fingerprinting metal ratio

Y.-C. Lin, C.-J. Tsai, Y.-C. Wu, R. Zhang, K.-H. Chi, Y.-T. Huang, S.-H. Lin, and S.-C. Hsu

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Short summary
In this work, size distributions and chemical compositions of 36 PM metals emitted from traffic emissions are explored by tunnel experiments. Potential sources of tunnel PM are also identified. Importantly, fingerprinting ratios of wear debris and automotive catalysts are established. The ratios will be good tools for apportioning PM sources in the polluted urban atmosphere.
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