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AIHA-UMS Meeting, Virtual - ODHMod, a new tool for the modelling of Oxygen Deficient Hazard in workplaces

  • February 24, 2022
  • 8:00 AM - 9:30 AM
  • Virtual, via Microsoft Teams (Link/Calendar Invite will also be sent to registrants)


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Presentation: ODHMod, a new tool for the modelling of Oxygen Deficiency Hazard in workplaces

Presenters:  Elena Stefana, Daniel Drolet, Filippo Marciano and Thomas W. Armstrong, 

Department of Mechanical and Industrial Engineering, University of Brescia, Italy 

AIHA - Exposure Assessment Strategies Committee, USA

Oxygen Deficiency Hazard (ODH) may expose workers to asphyxiation risk and represents a frequent cause of occupational incidents and fatalities, mostly in confined spaces and laboratories. There is also a large spectrum of industries that need to manage the asphyxiation risk caused by extensive inert gas uses. In this context, mathematical models represent a valuable tool for characterizing exposure profiles under varying conditions and evaluating several exposure scenarios, prospectively or retrospectively.

For these reasons, a modelling tool called ODHMOD was developed to support occupational hygienists, safety and health practitioners, and risk assessors during ODH assessments. It is based on a traditional Near Field-Far Field model: it estimates the indoor O₂ concentration percent by volume and partial pressure in two zones of a working environment, where inert gas releases can occur and forced and/or natural ventilation can move airflows inside and/or outside. By using ODHMOD, any user enters data and information usually available in companies and obtains the O₂ levels time trends in the near and far fields. This presentation will also include a tool demonstration, considering various examples of possible industrial scenarios.

When: Thursday, February 24, 2022; 8:00 - 9:30 am

Location: Virtual, via Microsoft Teams

*Recommend downloading Teams Application prior for best experience/functionality

Note: Link/Calendar Invite will also be sent to registrants upon approaching the date

Cost: $10- members, $15- non-members, free-students.  


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AIHA - Upper Midwest Section is a 501(c)6 non-profit organization. AIHA-UMS, P.O. Box 13717, Roseville, MN 55113
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