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Statistical analysis of microbial volatile organic compounds in an experimental project: identification and transport analysis

Hachem, C., Chaubey, Y., Fazio,, Rao, J. and Bartlett, K.
2010
Indoor and Built Environment, 19(2): 275-285. DOI: 10.1177/1420326X09342680
Microbial Volatile Organic Compound (MVOC), Mould, Stud Wall, SPME Sampling, Multiple Regression Analysis, Box¡ªCox Transformations

Hachem, C., Chaubey, Y., Fazio,, Rao, J. and Bartlett, K., (2010), "Statistical analysis of microbial volatile organic compounds in an experimental project: identification and transport analysis", Indoor and Built Environment, 19(2): 275-285. DOI: 10.1177/1420326X09342680.
Abstract:
This paper is based on an experimental project that investigated the capacity of wood frame stud walls to restrain the movement of mould products from the stud cavity into an investigative chamber, representing the indoor environment. While the programme of the research includes the investigation of spores and microbial volatile organic compounds (MVOCs), this paper reports only the analysis of MVOCs. Twenty full-scale wall specimens were constructed, incorporating six experimental factors (air leakage path patterns, mould presence, insulation, vapour barrier, sheathing material, and ambient humidity conditions). For each specimen, four VOC samples were taken simultaneously from the sampling chamber and from the stud cavity through the external sheathing, and one sample was taken from the background laboratory air for comparison. Multiple regression analysis was applied to identify the MVOCs, and subsequently to evaluate the effect of construction factors on the movement of these MVOCs through the envelope. Box¡ªCox transformation was applied prior to the regression analysis to normalise the data. Five VOCs were identified as related to the presence of mould in the stud cavity, at 5% level of significance. The transport of these MVOCs from the sampling chamber to the cavity was confirmed. However, no significant effect of the parameters related to wall configurations was detected.

Key Words:

This version was published on April 1, 2010

Indoor and Built Environment, Vol. 19, No. 2, 275-285 (2010)

DOI: 10.1177/1420326X09342680

This publication in whole or part may be found online at: This link has not been checked.here.
Author Information and Other Publications Notes
Hachem, C.
  1. Design Methodology of Solar Neighborhoods
  2. Identification and transport investigation of microbial volatile organic compounds in full-scale stud cavities  
Chaubey, Y.
     
Fazio, ,.
     
Rao, J.
Department of Building, Civil, and Environmental Engineering, Concordia University, Montreal
  1. A limit state design (LSD) approach for comparing relative drying performance of wood-frame envelope systems with full-scale lab, A roadmap towards intelligent net zero- and positive-energy buildings,
  2. A new test method to determine the relative drying capacity of building envelope panels of various configurations
  3. A new testing method to evaluate the relative drying performance of different building envelope systems using water trays
  4. Building Physics: 3rd International Conference in Building Physics
  5. Building pressurisation can affect possibility of mould growth
  6. Comparaison de m¨¦thodes de mesure de flux de chaleur pour sp¨¦cimens de grandes et moyennes dimensions
  7. Design and construction of an environmental chamber facility
  8. Development of experimental procedure to evaluate potential movement of mold spores from wall cavity to indoor environment
  9. Development of HAM tool for building envelope analysis
  10. Effect of capillarity on rainwater penetration in the building envelope
  11. Environmental chamber for investigation of building envelope performance
  12. Evaluation of radiance's genBSDF capability to assess solar bidirectional properties of complex fenestration systems
  13. Experimental evaluation of potential transport of mold spores from moldy studs in full-size wall assemblies
  14. Experimental study of temperature distributions across two curtain wall systems
  15. Identification and transport investigation of microbial volatile organic compounds in full-scale stud cavities
  16. In-cavity evaporation allowance--A drying capacity indicator for wood-frame wall system
  17. Interzonal air and moisture transport through large horizontal openings in a full-scale two-story test hut: Part 1 - Experimental study
  18. Interzonal air and moisture transport through large horizontal openings in a full-scale two-story test-hut: Part 2- CFD study
  19. Measuring air leakage characteristics with flexible double air chambers
  20. Measuring air leakage of full-scale curtain wall sections using a non-rigid air-chamber method
  21. Numerical investigation of the influence of room factors on HAM transport in a full-scale experimental room
  22. Review and framework for large-scale laboratory studies on wetting and drying of building envelopes
  23. Study of the reduced impact of thermal bridges in two sprayed-applied polyurethane wall assemblies
  24. Test method to measure the relative capacity of wall panels to evacuate moisture from their stud cavity
  25. Transfer of heat, moisture and air through metal curtain walls
  26. Use of an environmental chamber to investigate large-scale envelope specimen hygrothermal performance  
Bartlett, K.
  1. A field comparison of four samplers for enumerating fungal aerosols I. Sampling characteristics
  2. A field comparison of methods for enumerating airborne fungal bioaerosols
  3. Development of experimental procedure to evaluate potential movement of mold spores from wall cavity to indoor environment
  4. Experimental evaluation of potential transport of mold spores from moldy studs in full-size wall assemblies
  5. Identification and transport investigation of microbial volatile organic compounds in full-scale stud cavities  


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