Articles | Volume 24, issue 4
https://doi.org/10.5194/acp-24-2423-2024
© Author(s) 2024. 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-24-2423-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Feb 2024
Research article |
| 26 Feb 2024
| 26 Feb 2024
Elucidating the mechanisms of atmospheric new particle formation in the highly polluted Po Valley, Italy
Jing Cai
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Juha Sulo
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Yifang Gu
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Sebastian Holm
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Runlong Cai
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Steven Thomas
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Almuth Neuberger
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, 11418 Stockholm, Sweden
Fredrik Mattsson
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, 11418 Stockholm, Sweden
Marco Paglione
National Research Council of Italy – Institute of Atmospheric Sciences and Climate (CNR-ISAC), 40129 Bologna, Italy
Stefano Decesari
National Research Council of Italy – Institute of Atmospheric Sciences and Climate (CNR-ISAC), 40129 Bologna, Italy
Matteo Rinaldi
National Research Council of Italy – Institute of Atmospheric Sciences and Climate (CNR-ISAC), 40129 Bologna, Italy
Rujing Yin
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Diego Aliaga
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Wei Huang
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Yuanyuan Li
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Laboratory of Atmospheric and Earth System Research, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China
Yvette Gramlich
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, 11418 Stockholm, Sweden
Giancarlo Ciarelli
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Lauriane Quéléver
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Nina Sarnela
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Katrianne Lehtipalo
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Finnish Meteorological Institute, 00560 Helsinki, Finland
Nora Zannoni
National Research Council of Italy – Institute of Atmospheric Sciences and Climate (CNR-ISAC), 40129 Bologna, Italy
Cheng Wu
Department of Chemistry and Molecular Biology, Atmospheric Science, University of Gothenburg, 41296 Gothenburg, Sweden
Wei Nie
Laboratory of Atmospheric and Earth System Research, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China
Juha Kangasluoma
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Claudia Mohr
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
Department of Environmental System Science, ETH Zurich, 8092 Zurich, Switzerland
Markku Kulmala
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Laboratory of Atmospheric and Earth System Research, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China
Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
Qiaozhi Zha
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Laboratory of Atmospheric and Earth System Research, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China
Dominik Stolzenburg
CORRESPONDING AUTHOR
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
Institute for Materials Chemistry, TU Wien, 1060 Vienna, Austria
Federico Bianchi
CORRESPONDING AUTHOR
Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
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Short summary
By combining field measurements, simulations and recent chamber experiments, we investigate new particle formation (NPF) and growth in the Po Valley, where both haze and frequent NPF occur. Our results show that sulfuric acid, ammonia and amines are the dominant NPF precursors there. A high NPF rate and a lower condensation sink lead to a greater survival probability for newly formed particles, highlighting the importance of gas-to-particle conversion for aerosol concentrations.
By combining field measurements, simulations and recent chamber experiments, we investigate new...
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