Inhalation exposure associated with accessibility of source

Donghyun Rim, Atila Novoselac

Research output: Contribution to conferencePaperpeer-review


Exposure to airborne pollutants varies with source location and the airflow distribution in the indoor space. The objective of this study is to investigate the effect of the source location in the vicinity of a human body on inhalation exposure. Experiments with a sitting heated manikin and Computational Fluid Dynamics (CFD) simulations were conducted to examine contributions of multiple sources around an occupant to inhalation exposure. The results show that with low air mixing around the occupant, breathing concentration is higher for sources close to floor than those in upper body level. This is likely due to the buoyancy-driven thermal plume around the manikin, which transports pollutant at the floor to the upper breathing zone. This result implies that floor source emissions such as particle resuspension or off-gassing from carpet material can contribute to high levels of inhalation exposure to pollutants in residential environments.

Original languageEnglish (US)
StatePublished - Dec 1 2009
Event9th International Healthy Buildings Conference and Exhibition, HB 2009 - Syracuse, NY, United States
Duration: Sep 13 2009Sep 17 2009


Other9th International Healthy Buildings Conference and Exhibition, HB 2009
Country/TerritoryUnited States
CitySyracuse, NY

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction


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