Production and characterization of bioaerosols for model validation in spacecraft environment

Anniina Salmela (Corresponding Author), Eero Kokkonen, Ilpo Kulmala, Anna-Maria Veijalainen, Rob van Houdt, Natalie Leys, Audrey Berthier, Ilyin Viacheslav, Sergey Kharin, Julia Morozova, Alexander Tikhomirov, Pertti Pasanen

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)

    Abstract

    This study aimed to evaluate the suitability of two bioaerosol generation systems (dry and wet generation) for the aerosolization of microorganisms isolated from the International Space Station, and to calibrate the produced bioaerosols to fulfill the requirements of computational fluid dynamics model (CFD) validation. Concentration, stability, size distribution, agglomeration of generated bioaerosol and deposition of bioaerosols were analyzed. In addition, the dispersion of non-viable particles in the air was studied. Experiments proved that wet generation from microbial suspensions could be used for the production of well-calibrated and stabile bioaerosols for model validation. For the simulation of the natural release of fungal spores, a dry generation method should be used. This study showed that the used CFD model simulated the spread of non-viable particles fairly well. The mathematical deposition model by Lai and Nazaroff could be used to estimate the deposition velocities of bioaerosols on surfaces, although it somewhat underestimated the measured deposition velocities.
    Original languageEnglish
    Pages (from-to)227-238
    Number of pages12
    JournalJournal of Environmental Sciences
    Volume69
    Early online date2017
    DOIs
    Publication statusPublished - 2018
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    model validation
    Spacecraft
    spacecraft
    deposition velocity
    computational fluid dynamics
    Dynamic models
    Computational fluid dynamics
    agglomeration
    spore
    Space stations
    microorganism
    Microorganisms
    Suspensions
    Agglomeration
    air
    simulation
    Air
    experiment
    particle
    Experiments

    Keywords

    • bioaerosols
    • manned spacecraft
    • modelling

    Cite this

    Salmela, Anniina ; Kokkonen, Eero ; Kulmala, Ilpo ; Veijalainen, Anna-Maria ; van Houdt, Rob ; Leys, Natalie ; Berthier, Audrey ; Viacheslav, Ilyin ; Kharin, Sergey ; Morozova, Julia ; Tikhomirov, Alexander ; Pasanen, Pertti. / Production and characterization of bioaerosols for model validation in spacecraft environment. In: Journal of Environmental Sciences. 2018 ; Vol. 69. pp. 227-238.
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    title = "Production and characterization of bioaerosols for model validation in spacecraft environment",
    abstract = "This study aimed to evaluate the suitability of two bioaerosol generation systems (dry and wet generation) for the aerosolization of microorganisms isolated from the International Space Station, and to calibrate the produced bioaerosols to fulfill the requirements of computational fluid dynamics model (CFD) validation. Concentration, stability, size distribution, agglomeration of generated bioaerosol and deposition of bioaerosols were analyzed. In addition, the dispersion of non-viable particles in the air was studied. Experiments proved that wet generation from microbial suspensions could be used for the production of well-calibrated and stabile bioaerosols for model validation. For the simulation of the natural release of fungal spores, a dry generation method should be used. This study showed that the used CFD model simulated the spread of non-viable particles fairly well. The mathematical deposition model by Lai and Nazaroff could be used to estimate the deposition velocities of bioaerosols on surfaces, although it somewhat underestimated the measured deposition velocities.",
    keywords = "bioaerosols, manned spacecraft, modelling",
    author = "Anniina Salmela and Eero Kokkonen and Ilpo Kulmala and Anna-Maria Veijalainen and {van Houdt}, Rob and Natalie Leys and Audrey Berthier and Ilyin Viacheslav and Sergey Kharin and Julia Morozova and Alexander Tikhomirov and Pertti Pasanen",
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    Salmela, A, Kokkonen, E, Kulmala, I, Veijalainen, A-M, van Houdt, R, Leys, N, Berthier, A, Viacheslav, I, Kharin, S, Morozova, J, Tikhomirov, A & Pasanen, P 2018, 'Production and characterization of bioaerosols for model validation in spacecraft environment', Journal of Environmental Sciences, vol. 69, pp. 227-238. https://doi.org/10.1016/j.jes.2017.10.016

    Production and characterization of bioaerosols for model validation in spacecraft environment. / Salmela, Anniina (Corresponding Author); Kokkonen, Eero; Kulmala, Ilpo; Veijalainen, Anna-Maria; van Houdt, Rob; Leys, Natalie; Berthier, Audrey; Viacheslav, Ilyin; Kharin, Sergey; Morozova, Julia; Tikhomirov, Alexander; Pasanen, Pertti.

    In: Journal of Environmental Sciences, Vol. 69, 2018, p. 227-238.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Kulmala, Ilpo

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    AU - van Houdt, Rob

    AU - Leys, Natalie

    AU - Berthier, Audrey

    AU - Viacheslav, Ilyin

    AU - Kharin, Sergey

    AU - Morozova, Julia

    AU - Tikhomirov, Alexander

    AU - Pasanen, Pertti

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