The general ventilation multipliers calculated by using a standard Near-Field/Far-Field model

Journal of Occupational and Environmental Hygiene
Antti J KoivistoIsmo K Koponen

Abstract

In conceptual exposure models, the transmission of pollutants in an imperfectly mixed room is usually described with general ventilation multipliers. This is the approach used in the Advanced REACH Tool (ART) and Stoffenmanager® exposure assessment tools. The multipliers used in these tools were reported by Cherrie (1999; http://dx.doi.org/10.1080/104732299302530 ) and Cherrie et al. (2011; http://dx.doi.org/10.1093/annhyg/mer092 ) who developed them by positing input values for a standard Near-Field/Far-Field (NF/FF) model and then calculating concentration ratios between NF and FF concentrations. This study revisited the calculations that produce the multipliers used in ART and Stoffenmanager and found that the recalculated general ventilation multipliers were up to 2.8 times (280%) higher than the values reported by Cherrie (1999) and the recalculated NF and FF multipliers for 1-hr exposure were up to 1.2 times (17%) smaller and for 8-hr exposure up to 1.7 times (41%) smaller than the values reported by Cherrie et al. (2011). Considering that Stoffenmanager and the ART are classified as higher-tier regulatory exposure assessment tools, the errors is general ventilation multipliers should not be ignored. We recommend revising...Continue Reading

References

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Citations

Jan 16, 2020·International Journal of Environmental Research and Public Health·John William CherrieKeld Alstrup Jensen
Jun 18, 2020·International Journal of Environmental Research and Public Health·Andrea SpinazzèDomenico Maria Cavallo
May 17, 2019·International Journal of Environmental Research and Public Health·Carla RibaltaMar Viana
Aug 7, 2019·International Journal of Environmental Research and Public Health·Andrea SpinazzèDomenico Maria Cavallo
Jul 2, 2020·International Journal of Environmental Research and Public Health·Urs Schlueter, Martin Tischer
Aug 9, 2021·Annals of Work Exposures and Health·Antti Joonas KoivistoSusan Arnold

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Software Mentioned

Advanced REACH Tool
caLIBERAte
IHMod
SUN

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