Real-world emission factors for antimony and other brake wear related trace elements: size-segregated values for light and heavy duty vehicles

Environmental Science & Technology
Nicolas BukowieckiRobert Gehrig

Abstract

Hourly trace element measurements were performed in an urban street canyon and next to an interurban freeway in Switzerland during more than one month each, deploying a rotating drum impactor (RDI) and subsequent sample analysis by synchrotron radiation X-ray fluorescence spectrometry (SR-XRF). Antimony and other brake wear associated elements were detected in three particle size ranges (2.5-10, 1-2.5, and 0.1-1 microm). The hourly measurements revealed that the effect of resuspended road dust has to be taken into account for the calculation of vehicle emission factors. Individual values for light and heavy duty vehicles were obtained for stop-and-go traffic in the urban street canyon. Mass based brake wear emissions were predominantly found in the coarse particle fraction. For antimony, determined emission factors were 11 +/- 7 and 86 +/- 42 microg km(-1) vehicle(-1) for light and heavy duty vehicles, respectively. Antimony emissions along the interurban freeway with free-flowing traffic were significantly lower. Relative patterns for brake wear related elements were very similar for both considered locations. Beside vehicle type specific brake wear emissions, road dust resuspension was found to be a dominant contributor of an...Continue Reading

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Citations

Mar 31, 2012·Environmental Science & Technology·A HodzicJ L Jimenez
Feb 1, 2013·Journal of the Air & Waste Management Association·Yasmany MancillaAlberto Mendoza
Mar 12, 2013·Journal of the Air & Waste Management Association·Hugo A C Denier van der GonFlemming R Cassee
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Mar 12, 2016·Environmental Science & Technology·Hyeong-Gyu NamgungSoon-Bark Kwon
Mar 15, 2015·Journal of Environmental Sciences (China)·Xingyun HuSisi Li
Oct 17, 2014·Environmental Science and Pollution Research International·Theodoros Grigoratos, Giorgio Martini
Jul 1, 2017·International Journal of Environmental Research and Public Health·Ewa Adamiec
May 30, 2017·Environmental Geochemistry and Health·Ewa Adamiec
Nov 11, 2020·The Science of the Total Environment·Pragati RaiAndré S H Prévôt
Jan 24, 2021·The Science of the Total Environment·Mathis L MessagerPhillip S Levin
Jan 10, 2021·The Science of the Total Environment·Amelia PiscitelloRajandrea Sethi
Apr 3, 2019·Environmental Science & Technology·Ferdinand H Farwick Zum HagenThorsten Benter
Mar 9, 2011·Environmental Science & Technology·Larry B BarberPhilip L Verplanck

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