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Impact of simulated climate and building features on the penetration of toxic gases from the ambient into the indoor environment
MARR, D., X. LIU, R. B. MOSLEY, M. A. MASON, B. PAGNANI, AND C. WHITFIELD. Impact of simulated climate and building features on the penetration of toxic gases from the ambient into the indoor environment. In Proceedings, 2009 Healthy Buildings International Conference, Syracuse, NY, September 13 - 17, 2009. International Society of Indoor Air Quality and Climate (ISIAQ), Santa Cruz, CA, ,, (2009).
This research is a combination of experimental results and analysis of formaldehyde penetration across a residential building envelope with the objective of developing an understanding of the factors that govern indoor air concentrations of air toxics and to provide linkages between EPA's research on indoor and outdoor air toxics and human exposure modeling. Experiments were conducted at an EPA research test house. Air flow rates between zones of the test house were determined by injecting tracer gases and measuring the decay rates with time. This was done over a range of imposed pressure differences between the indoor and outdoor zones, simulating natural ventilation caused by weather effects. Formaldehyde was introduced from the exterior of the house and measured in the same zones using multiple measurement techniques. The outdoor zone was simulated by an external structure that was dosed with formaldehyde immediately prior to measurements.
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NRMRL RTP P 1035.PDF (PDF,NA pp, 360 KB, about PDF)
Record Details:Record Type: DOCUMENT (PAPER IN NON-EPA PROCEEDINGS)
Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY
AIR POLLUTION PREVENTION AND CONTROL DIVISION
INDOOR ENVIRONMENT MANAGEMENT BRANCH