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Measuring aerosol particle behaviour due to human activity indoors for re-exposure evaluation

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

Abstract

Separate experiments were devised to investigate two processes - resuspension and contact transfer by which aerosol contamination can be spread in the indoor environment. Resuspension rates and transfer efficiencies were quantified for a number of variables. Fluorescein and rare earth metals were used as tracers and various soft, hard, natural and synthetic surfaces were tested. The analysis techniques utilised include Neutron Activation Analysis, Fluorimetery and Scanning Electron Microscopy. Approximately 63 % of 10 μm particles were found to resuspend from contaminated clothing during walking indoors. Mass transfer efficiencies of 2 - 45 % were observed. These percentages could have an important impact on the levels of airborne contamination indoors and thus affect a person's potential for exposure.

Original languageEnglish
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages2075-2080
Number of pages6
Publication statusPublished - 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: 5 Jun 201110 Jun 2011

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume3

Conference

Conference12th International Conference on Indoor Air Quality and Climate 2011
Country/TerritoryUnited States
CityAustin, TX
Period5/06/1110/06/11

Keywords

  • Contact transfer
  • Contaminant transport in the indoor environment
  • Exposure
  • Resuspension

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