Articles | Volume 20, issue 1
https://doi.org/10.5194/acp-20-1-2020
© Author(s) 2020. 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-20-1-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Jan 2020
Research article |
| 02 Jan 2020
| 02 Jan 2020
Traffic-originated nanocluster emission exceeds H2SO4-driven photochemical new particle formation in an urban area
Aerosol Physics Laboratory, Physics Unit, Tampere University, 33014 Tampere, Finland
Heino Kuuluvainen
Aerosol Physics Laboratory, Physics Unit, Tampere University, 33014 Tampere, Finland
Minna Aurela
Atmospheric Composition Research, Finnish Meteorological Institute, 00101 Helsinki, Finland
Joni Kalliokoski
Aerosol Physics Laboratory, Physics Unit, Tampere University, 33014 Tampere, Finland
Niina Kuittinen
Aerosol Physics Laboratory, Physics Unit, Tampere University, 33014 Tampere, Finland
Mia Isotalo
Aerosol Physics Laboratory, Physics Unit, Tampere University, 33014 Tampere, Finland
Hilkka J. Timonen
Atmospheric Composition Research, Finnish Meteorological Institute, 00101 Helsinki, Finland
Jarkko V. Niemi
Helsinki Region Environmental Services Authority (HSY), 00066 HSY, Helsinki, Finland
Topi Rönkkö
Aerosol Physics Laboratory, Physics Unit, Tampere University, 33014 Tampere, Finland
Miikka Dal Maso
Aerosol Physics Laboratory, Physics Unit, Tampere University, 33014 Tampere, Finland
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- Thermodynamical framework for effective mitigation of high aerosol loading in the Indo-Gangetic Plain during winter P. Acharja et al. 10.1038/s41598-023-40657-w
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- High Concentration of Atmospheric Sub‐3 nm Particles in Polluted Environment of Eastern China: New Particle Formation and Traffic Emission L. Chen et al. 10.1029/2023JD039669
- Brownian coagulation of particles in the gasoline engine exhaust system: Experimental measurement and Monte Carlo simulation H. Liu et al. 10.1016/j.fuel.2021.121340
- An evaluation of new particle formation events in Helsinki during a Baltic Sea cyanobacterial summer bloom R. Thakur et al. 10.5194/acp-22-6365-2022
- Analysis of aerosol particle number size distribution and source attribution at three megacities in China D. Zhang et al. 10.1016/j.atmosenv.2022.119114
- Effect of industrial alkene ozonolysis on atmospheric H2SO4 formation X. Wang et al. 10.1016/j.jes.2023.11.012
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- Measurement report: Atmospheric new particle formation in a coastal agricultural site explained with binPMF analysis of nitrate CI-APi-TOF spectra M. Olin et al. 10.5194/acp-22-8097-2022
Latest update: 24 Apr 2024
Short summary
Photochemically formed sulfuric acid is generally considered the main source for new particle formation in the atmosphere. Contrary to current understanding, our measurements of nanoclusters and gaseous sulfuric acid performed in an urban area imply that traffic contributes to sulfuric acid concentration and that even for the smallest particles, the traffic-emitted fraction mostly exceeds the photochemistry-driven regional new particle formation.
Photochemically formed sulfuric acid is generally considered the main source for new particle...
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