Application of chemical mass balance modeling to indoor VOCs

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ConferenceIndoor Air 2002, The 9th International Conference on Indoor Air Quality and Climate: 30 June 2002, Monterey, CA., U.S.A.
Pages268273; # of pages: 6
Subjectsource apportionment, chemical mass balance, VOCs, indoor air, building materials; Volatile organic compounds
AbstractThere have been several studies to measure the concentrations of volatile organic compounds (VOCs) indoors and to characterize their sources. However, the two tasks have often been done separately, and few attempts have been made to provide a direct link between the sources and the measured VOCs. Chemical mass balance (CMB) modeling was applied to the measurements of 24 VOCs in a newly constructed house. The results of CMB modeling show that wall adhesive, caulking, I-beam joist, and particleboard are the dominant sources. An attempt was also made to estimate the source contributions using mathematical transportmodeling. Good agreement was obtained between the two results. The CMB model is shown to have good potential for identifying the dominant sources and helping develop control strategies for indoor VOCs. However, more research is needed for the collinearity problem associated with source signatures.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number45333
NPARC number20378837
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Record identifier5196dc96-c13c-4c71-86fe-06e759c6640f
Record created2012-07-24
Record modified2016-05-09
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