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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- Gaseous Sulfuric Acid Contributions to Sulfate Formation in Urban Atmosphere Z. Wang et al. 10.1021/acs.estlett.4c01028
- Atmospheric nanoparticle growth D. Stolzenburg et al. 10.1103/RevModPhys.95.045002
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- Molecular insights into new particle formation in Barcelona, Spain J. Brean et al. 10.5194/acp-20-10029-2020
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- Sub-23 nm Particles Dominate Non-Volatile Particle Number Emissions of Road Traffic H. Lintusaari et al. 10.1021/acs.est.3c03221
- The effect of meteorological conditions and atmospheric composition in the occurrence and development of new particle formation (NPF) events in Europe D. Bousiotis et al. 10.5194/acp-21-3345-2021
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- East Asian climate response to COVID-19 lockdown measures in China S. Lee et al. 10.1038/s41598-021-96007-1
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- 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
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- Effect of industrial alkene ozonolysis on atmospheric H2SO4 formation X. Wang et al. 10.1016/j.jes.2023.11.012
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- Particle number size distribution and new particle formation in Xiamen, the coastal city of Southeast China in wintertime J. Wang et al. 10.1016/j.scitotenv.2022.154208
- Description and evaluation of the community aerosol dynamics model MAFOR v2.0 M. Karl et al. 10.5194/gmd-15-3969-2022
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Latest update: 30 May 2025
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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