Articles | Volume 21, issue 13
https://doi.org/10.5194/acp-21-9931-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-9931-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Measurement report
| 
02 Jul 2021
Measurement report |
| 02 Jul 2021
| 02 Jul 2021
Measurement report: The influence of traffic and new particle formation on the size distribution of 1–800 nm particles in Helsinki – a street canyon and an urban background station comparison
Magdalena Okuljar
CORRESPONDING AUTHOR
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Heino Kuuluvainen
Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
Jenni Kontkanen
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Olga Garmash
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Miska Olin
Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
Jarkko V. Niemi
Helsinki Region Environmental Services Authority, P.O. Box 100, 00066, Helsinki, Finland
Hilkka Timonen
Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, 00101, Helsinki, Finland
Juha Kangasluoma
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Yee Jun Tham
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Rima Baalbaki
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Mikko Sipilä
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Laura Salo
Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
Henna Lintusaari
Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
Harri Portin
Helsinki Region Environmental Services Authority, P.O. Box 100, 00066, Helsinki, Finland
Kimmo Teinilä
Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, 00101, Helsinki, Finland
Minna Aurela
Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, 00101, Helsinki, Finland
Miikka Dal Maso
Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
Topi Rönkkö
Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
Tuukka Petäjä
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Pauli Paasonen
Institute of Atmospheric and Earth System Science/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
Data sets
Measurement report: The influence of traffic and new particle formation on the size distribution of 1–800 nm particles in Helsinki: a street canyon and an urban background station comparison M. Okuljar https://doi.org/10.5281/zenodo.4884875
Short summary
To estimate the relative contribution of different sources to the particle population in an urban environment, we conducted simultaneous measurements at a street canyon and an urban background station in Helsinki. We investigated the contribution of traffic and new particle formation to particles with a diameter between 1 and 800 nm. We found that during spring traffic does not dominate the particles smaller than 3 nm at either of the stations.
To estimate the relative contribution of different sources to the particle population in an...
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