Articles | Volume 3, issue 1
https://doi.org/10.5194/ar-3-15-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ar-3-15-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 Jan 2025
Research article |
| 14 Jan 2025
| 14 Jan 2025
New particle formation dynamics in the central Andes: contrasting urban and mountaintop environments
Diego Aliaga
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Victoria A. Sinclair
CORRESPONDING AUTHOR
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Radovan Krejci
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 11418 Stockholm, Sweden
Marcos Andrade
Laboratory for Atmospheric Physics, Institute for Physics Research, Universidad Mayor de San Andrés, La Paz, Bolivia
Department of Atmospheric and Oceanic Sciences, University of Maryland, College Park, College Park, Maryland 20742, USA
Paulo Artaxo
Institute of Physics, University of São Paulo, São Paulo, 05508-900, Brazil
Luis Blacutt
Laboratory for Atmospheric Physics, Institute for Physics Research, Universidad Mayor de San Andrés, La Paz, Bolivia
Runlong Cai
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, 200438 Shanghai, China
Samara Carbone
Institute of Agrarian Sciences, Federal University of Uberlândia, Uberlândia-MG, 38408-100, Brazil
Yvette Gramlich
PSI Center for Energy and Environmental Sciences, 5232 Villigen PSI, Switzerland
Liine Heikkinen
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 11418 Stockholm, Sweden
Dominic Heslin-Rees
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 11418 Stockholm, Sweden
Wei Huang
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
PSI Center for Energy and Environmental Sciences, 5232 Villigen PSI, Switzerland
Veli-Matti Kerminen
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Alkuin Maximilian Koenig
Laboratory for Atmospheric Physics, Institute for Physics Research, Universidad Mayor de San Andrés, La Paz, Bolivia
Institute of Coastal Systems – Analysis and Modeling, Helmholtz-Zentrum Hereon, Max-Planck-Str. 1, 21502 Geesthacht, Germany
Markku Kulmala
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100089, China
Paolo Laj
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Institut des Géosciences de l'Environnement, IGE, UGA, CNRS, IRD, G-INP, 38000 Grenoble, France
Valeria Mardoñez-Balderrama
Laboratory for Atmospheric Physics, Institute for Physics Research, Universidad Mayor de San Andrés, La Paz, Bolivia
Institute of Atmospheric Sciences and Climate, National Research Council of Italy (CNR-ISAC), 40129 Bologna, Italy
Claudia Mohr
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 11418 Stockholm, Sweden
PSI Center for Energy and Environmental Sciences, 5232 Villigen PSI, Switzerland
Isabel Moreno
Laboratory for Atmospheric Physics, Institute for Physics Research, Universidad Mayor de San Andrés, La Paz, Bolivia
Pauli Paasonen
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Wiebke Scholz
Institute for ion and applied physics, University of Innsbruck, Innsbruck, Austria
Karine Sellegri
Laboratoire de Météorologie Physique (LaMP), Université Clermont Auvergne, CNRS, 63000 Clermont-Ferrand, France
Laura Ticona
Laboratory for Atmospheric Physics, Institute for Physics Research, Universidad Mayor de San Andrés, La Paz, Bolivia
Gaëlle Uzu
Institut des Géosciences de l'Environnement, IGE, UGA, CNRS, IRD, G-INP, 38000 Grenoble, France
Fernando Velarde
Laboratory for Atmospheric Physics, Institute for Physics Research, Universidad Mayor de San Andrés, La Paz, Bolivia
Alfred Wiedensohler
Department of Experimental Aerosol and Cloud Microphysics, Leibniz Institute for Tropospheric Research (TROPOS), 04318 Leipzig, Germany
Doug Worsnop
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Aerodyne Research Inc., Billerica, Massachusetts 01821, USA
Cheng Wu
Department of Environmental Science, Stockholm University, 11418 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 11418 Stockholm, Sweden
now at: Department of Chemistry and Molecular Biology, University of Gothenburg, 41296, Gothenburg, Sweden
Chen Xuemeng
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
Qiaozhi Zha
Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China
Federico Bianchi
Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, Helsinki, 00014, Finland
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Short summary
This study examines new particle formation (NPF) in the Bolivian Andes at Chacaltaya mountain (CHC) and the urban El Alto–La Paz area (EAC). Days are clustered into four categories based on NPF intensity. Differences in particle size, precursor gases, and pollution levels are found. High NPF intensities increased Aitken mode particle concentrations at both sites, while volcanic influence selectively diminished NPF intensity at CHC but not EAC. This study highlights NPF dynamics in the Andes.
This study examines new particle formation (NPF) in the Bolivian Andes at Chacaltaya mountain...
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