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| INDOOR AIR QUALITY RESEARCH
Indoor air quality research has advanced tremendously in recent years. There are still, however, many aspects of IAQ which are not well quantified. One of these aspects is the migration and other behavior of pollutants in real houses. Field studies and modeling have been the primary tools used to gain additional understanding of these behaviors. Field studies often suffer from having limited research time available in a particular building. And modeling, of course, needs validation data to provide confidence in its results. GARD has extensive experience in the testing related to gas appliance emissions. Past research conducted for over a decade has focused on how emissions from various pollutant sources interact with the dynamics of a house to result in observed pollutant concentrations. This has included investigations of backdrafting, NO2 decay rates, appliance emissions, pollutant migration and pollutant monitoring equipment and techniques. GARD has also conducted modeling studies of residential ventilation system and their effect on contaminant concentrations. Studies have included supply-only, exhaust-only, and mixed ventilation systems; impact on equipment backdrafting moisture effects; and effects on room-to-room contaminant distribution. |
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