Particulate matter (PM) sampling with subsequent transmitted-light microscope (TLM) single-particle analysis and mass concentration calculation at highly frequented motorways in Germany

Two main sampling sites at highly frequented motorways (BAB A 555 and BAB A 4) have been set up in Germany with Sigma-2 passive sampler devices for subsequent automated optical single-particle analysis and calculation of ambient aerosol mass concentration for particles in the size from 2.5-80 μm. This one-year pilot study revealed for the BAB A 555 location a particle mass concentration that is on average approximately 25% lower than that at the BAB A 4 sampling site. The opaque particle fraction shows for both sampling sites the maximum concentration of PM in the 10 to 20 μm size interval. This is typical for sampling locations under the direct influence of road traffic and is in good agreement with passive sampler measurements from the past at different roadside locations. However, the transparent particle fraction at both motorways exhibits a right-skewed size distribution, which is unusual for a roadside station. Further analysis of the data, in combination with meteorological parameters (e.g. temperature, wind, precipitation) and the time of the year (spring, summer, autumn, winter), is ongoing. Additionally, some samples of interest have been selected for a detailed chemical and mineralogical single-particle analysis by SEM with energy-dispersive X-ray (EDX) spectroscopy. On a longer term, the study will focus on, validate and, if possible, quantify the possible increase in non-exhaust emissions, which the authors anticipate as a result of climate change. (A)

  • Corporate Authors:

    FGSV Verlag

    Wesselinger Str. 15-17
    Köln,   Germany  50999

    Bundesanstalt fuer Strassenwesen (Federal highway research institute)

    Bruederstr. 53
    Bergisch Gladbach,   Germany  D-51427
  • Authors:
    • Tian, Z
    • Dietze, V
    • Baum, A
    • Kaminski, U
    • Sauer, J
    • Stille, P
    • Maschowski, C
    • Cen, K
    • Giere, R
  • Publication Date: 2015-3

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 248-58
  • Monograph Title: Kolloquium Luftqualitaet an Strassen 2015. Tagungsbeitraege vom 4. und 5. Maerz 2015, Bergisch Gladbach, Bundesanstalt fuer Strassenwesen

Subject/Index Terms

Filing Info

  • Accession Number: 01624708
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD
  • Created Date: Aug 17 2016 9:27AM