The effects of reduced ventilation on indoor air quality in an office building

摘要: Abstract Indoor air quality was monitored at an office building in San Francisco, CA where occupants had registered eye, nose and throat irritation complaints. Portable pollution monitoring equipment placed on site to monitor outdoors three indoor sites (a waiting room, interview room room), data were taken under two different ventilation rates. The parameters measured outside flow rates, temperature, relative humidity, odor perception, microbial burden, particulate mass, formaldehyde other organics, carbon dioxide, monoxide nitrogen dioxide. Carbon dioxide concentrations increased as the rate decreased; perceptibility slightly lowest rate, pollutants generally showed very low concentrations, which when reduced. In no case, however, did levels exceed current health standards for outdoor air, nor any one contaminant found be responsible medical symptoms reported by occupants. It is possible that a synergistic effect of various contaminants environmental conditions may account discomfort