Articles | Volume 2, issue 1
https://doi.org/10.5194/ar-2-13-2024
© 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/ar-2-13-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Pushing nano-aerosol measurements towards a new decade – technical note on the Airmodus particle size magnifier 2.0
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Joonas Enroth
Airmodus Oy, Helsinki, 00560, Finland
Aki Pajunoja
Airmodus Oy, Helsinki, 00560, Finland
Joonas Vanhanen
Airmodus Oy, Helsinki, 00560, Finland
Katrianne Lehtipalo
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Finnish Meteorological Institute, Helsinki, Finland
Tuukka Petäjä
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Markku Kulmala
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology (BUCT), Beijing, China
Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China
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Cited
11 citations as recorded by crossref.
- Direct calibration using atmospheric particles and performance evaluation of Particle Size Magnifier (PSM) 2.0 for sub-10 nm particle measurements Y. Liu et al. https://doi.org/10.5194/amt-18-431-2025
- A compact aerosol mobility imager (AMI) for instantaneous aerosol size distribution measurements, part I: Design and model evaluation J. Zhang et al. https://doi.org/10.1080/02786826.2024.2435436
- Results and insights from the first ACTRIS intercomparison workshop on sub-10 nm aerosol sizing instrumentation H. Hartl et al. https://doi.org/10.5194/ar-4-133-2026
- New Particle Formation and Growth in Urban Atmospheres: From Observations to Molecular-Level Understanding R. Cai et al. https://doi.org/10.1021/acs.chemrev.5c00684
- How the understanding of atmospheric new particle formation has evolved along with the development of measurement and analysis methods K. Lehtipalo et al. https://doi.org/10.1016/j.jaerosci.2024.106494
- Types of regional and localised new aerosol particle formation and growth processes: Atmospheric Banana Atlas I. Salma et al. https://doi.org/10.1038/s41612-025-01149-y
- Dispersion of ultrafine particle pollution from an international airport: Characteristics and short- and long-term effects in surrounding areas T. Lepistö et al. https://doi.org/10.1016/j.envint.2026.110116
- Impact of nucleation mode traffic emission on modelled high-resolution particle number concentrations in Beijing X. Li et al. https://doi.org/10.1016/j.aeaoa.2026.100453
- Operation of a variable saturation condensation particle sizer with 2-propanol, ethanol, methanol, and propylene glycol: Resolution and delay time versus volatility M. Attoui et al. https://doi.org/10.1016/j.jaerosci.2025.106662
- Detection efficiency of a water condensation particle counter using electrically neutral sulfuric acid and sulfuric acid-dimethylamine clusters D. Cheng et al. https://doi.org/10.1080/02786826.2025.2496486
- Fast and sensitive measurements of sub-3 nm particles using Condensation Particle Counters For Atmospheric Rapid Measurements (CPC FARM) D. Cheng et al. https://doi.org/10.5194/amt-18-197-2025
11 citations as recorded by crossref.
- Direct calibration using atmospheric particles and performance evaluation of Particle Size Magnifier (PSM) 2.0 for sub-10 nm particle measurements Y. Liu et al. https://doi.org/10.5194/amt-18-431-2025
- A compact aerosol mobility imager (AMI) for instantaneous aerosol size distribution measurements, part I: Design and model evaluation J. Zhang et al. https://doi.org/10.1080/02786826.2024.2435436
- Results and insights from the first ACTRIS intercomparison workshop on sub-10 nm aerosol sizing instrumentation H. Hartl et al. https://doi.org/10.5194/ar-4-133-2026
- New Particle Formation and Growth in Urban Atmospheres: From Observations to Molecular-Level Understanding R. Cai et al. https://doi.org/10.1021/acs.chemrev.5c00684
- How the understanding of atmospheric new particle formation has evolved along with the development of measurement and analysis methods K. Lehtipalo et al. https://doi.org/10.1016/j.jaerosci.2024.106494
- Types of regional and localised new aerosol particle formation and growth processes: Atmospheric Banana Atlas I. Salma et al. https://doi.org/10.1038/s41612-025-01149-y
- Dispersion of ultrafine particle pollution from an international airport: Characteristics and short- and long-term effects in surrounding areas T. Lepistö et al. https://doi.org/10.1016/j.envint.2026.110116
- Impact of nucleation mode traffic emission on modelled high-resolution particle number concentrations in Beijing X. Li et al. https://doi.org/10.1016/j.aeaoa.2026.100453
- Operation of a variable saturation condensation particle sizer with 2-propanol, ethanol, methanol, and propylene glycol: Resolution and delay time versus volatility M. Attoui et al. https://doi.org/10.1016/j.jaerosci.2025.106662
- Detection efficiency of a water condensation particle counter using electrically neutral sulfuric acid and sulfuric acid-dimethylamine clusters D. Cheng et al. https://doi.org/10.1080/02786826.2025.2496486
- Fast and sensitive measurements of sub-3 nm particles using Condensation Particle Counters For Atmospheric Rapid Measurements (CPC FARM) D. Cheng et al. https://doi.org/10.5194/amt-18-197-2025
Saved (final revised paper)
Latest update: 26 Aug 2026
Short summary
We present a novel version of an aerosol number size distribution instrument, showcasing its capability to measure particle number concentration and particle number size distribution between 1 and 12 nm. Our results show that the instrument agrees well with existing instrumentation and allows for both the accurate measurement of the smallest particles and overlap with more conventional aerosol number size distribution instruments.
We present a novel version of an aerosol number size distribution instrument, showcasing its...
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