Articles | Volume 22, issue 5
https://doi.org/10.5194/acp-22-3469-2022
© Author(s) 2022. 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-22-3469-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Mar 2022
Research article |
| 16 Mar 2022
Occurrence and growth of sub-50 nm aerosol particles in the Amazonian boundary layer
Institute of Physics, University of São Paulo, São Paulo 05508-900, Brazil
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Florian Ditas
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
now at: Hessian Agency for Nature Conservation, Environment and Geology, 65203 Wiesbaden, Germany
Leslie A. Kremper
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Luiz A. T. Machado
Institute of Physics, University of São Paulo, São Paulo 05508-900, Brazil
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Meinrat O. Andreae
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92037, USA
Department of Geology and Geophysics, King Saud University, Riyadh, Saudi Arabia
Alessandro Araújo
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) Amazonia Oriental, CEP 66095-100, Belém, Brazil
Henrique M. J. Barbosa
Institute of Physics, University of São Paulo, São Paulo 05508-900, Brazil
Joel F. Brito
IMT Lille Douai, Institut Mines-Télécom, Université de Lille, Centre for Energy and Environment, 59000 Lille, France
Samara Carbone
Agrarian Sciences Institute, Federal University of Uberlândia, Uberlândia-MG, 38408-100, Brazil
Bruna A. Holanda
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Fernando G. Morais
Institute of Physics, University of São Paulo, São Paulo 05508-900, Brazil
Janaína P. Nascimento
National Institute for Amazonian Research, Manaus, AM, 69.060-000, Brazil
now at: NOAA Global Systems Laboratory, Boulder, CO 80305, USA
Mira L. Pöhlker
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Experimental Aerosol and Cloud Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Luciana V. Rizzo
Federal University of Sao Paulo, Department of Environmental Sciences, Diadema, Brazil
Marta Sá
National Institute for Amazonian Research, Manaus, AM, 69.060-000, Brazil
Jorge Saturno
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
now at: Department 3.4 Analytical Chemistry of the Gas Phase, Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany
David Walter
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Department of Biogeochemical Systems, Max Planck Institute for Biogeochemistry, 07701 Jena, Germany
now at: Climate Geochemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Stefan Wolff
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Ulrich Pöschl
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Paulo Artaxo
Institute of Physics, University of São Paulo, São Paulo 05508-900, Brazil
Christopher Pöhlker
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
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Latest update: 22 Mar 2023
Short summary
In Central Amazonia, new particle formation in the planetary boundary layer is rare. Instead, there is the appearance of sub-50 nm aerosols with diameters larger than about 20 nm that eventually grow to cloud condensation nuclei size range. Here, 254 growth events were characterized which have higher predominance in the wet season. About 70 % of them showed direct relation to convective downdrafts, while 30 % occurred partly under clear-sky conditions, evidencing still unknown particle sources.
In Central Amazonia, new particle formation in the planetary boundary layer is rare. Instead,...
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