Articles | Volume 16, issue 9
https://doi.org/10.5194/acp-16-5497-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-5497-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Chemical and physical characterization of traffic particles in four different highway environments in the Helsinki metropolitan area
Joonas Enroth
Metropolia University of Applied Sciences, Department of
Technology, Helsinki, Finland
University of Helsinki, Department of Physics, Helsinki,
Finland
Sanna Saarikoski
Finnish Meteorological Institute, Atmospheric Composition
Research, Helsinki, Finland
Jarkko Niemi
Helsinki Region Environmental Services Authority HSY,
Helsinki, Finland
University of Helsinki, Department of Environmental
Sciences, Helsinki, Finland
Anu Kousa
Helsinki Region Environmental Services Authority HSY,
Helsinki, Finland
Irena Ježek
Aerosol d.o.o., Ljubljana, Slovenia
Griša Močnik
Aerosol d.o.o., Ljubljana, Slovenia
Jožef Stefan Institute, Ljubljana,
Slovenia
Samara Carbone
Finnish Meteorological Institute, Atmospheric Composition
Research, Helsinki, Finland
now at: University of São Paulo, Department of Applied
Physics, São Paulo, Brazil
Heino Kuuluvainen
Tampere University of Technology, Department of Physics,
Tampere, Finland
Topi Rönkkö
Tampere University of Technology, Department of Physics,
Tampere, Finland
Risto Hillamo
Finnish Meteorological Institute, Atmospheric Composition
Research, Helsinki, Finland
Liisa Pirjola
CORRESPONDING AUTHOR
Metropolia University of Applied Sciences, Department of
Technology, Helsinki, Finland
University of Helsinki, Department of Physics, Helsinki,
Finland
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Discussed (preprint)
Latest update: 21 Nov 2024
Short summary
This paper presents a comprehensive summary of roadside measurements using a mobile laboratory, equipped with state-of-the-art instrumentation. Pollution gradients were observed for particle number, black carbon, organics, some metals, and gases at four different highway environments. Flow dynamics appeared to be an important factor, however, at the most open site, condensation of semi-volatile organics was observed. The fleet average NO2 emission factor increased over the last decade.
This paper presents a comprehensive summary of roadside measurements using a mobile laboratory,...
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