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
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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- Unprecedented Ambient Sulfur Trioxide (SO3) Detection: Possible Formation Mechanism and Atmospheric Implications L. Yao et al. 10.1021/acs.estlett.0c00615
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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
- Characterization of Urban New Particle Formation in Amman—Jordan T. Hussein et al. 10.3390/atmos11010079
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- Improving the current air quality index with new particulate indicators using a robust statistical approach P. Fung et al. 10.1016/j.scitotenv.2022.157099
- CFD modeling the diffusional losses of nanocluster-sized particles and condensing vapors in 90° bends of circular tubes M. Olin & M. Dal Maso 10.1016/j.jaerosci.2020.105618
- 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
- Molecular insights into new particle formation in Barcelona, Spain J. Brean et al. 10.5194/acp-20-10029-2020
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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: 21 Sep 2023
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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