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.",
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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 - Salmela, Anniina

AU - Kokkonen, Eero

AU - Kulmala, Ilpo

AU - Veijalainen, Anna-Maria

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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