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Measured air exchange rates and indoor air quality in multifamily residences
AbstractMeasurements of air exchange rate and indoor air quality were taken in three occupied units in three separate buildings of a multifamily complex at the Naval Submarine Base in Bangor, (State of) Washington, over 5–6 consecutive days in November 1983. These three identically-sized all-electric units were located in two-story, four-unit buildings that had been constructed in 1978. One unit was on the ground floor; the other two units were on the second floor.Pollutants monitored indoors included radon, formaldehyde, carbon monoxide, particulate matter, and nitrogen dioxide. Indoor and outdoor temperature and wind speed were also recorded. Outdoor formaldehyde and nitrogen dioxide were also measured. The air exchange rate was measured using a constant release of perfluorocarbon tracer; the airborne tracer concentration was collected automatically over continuous sampling periods of 6–8 hours.The average air exchange rate for a 24-h period ranged from 0.24 air changes per hour (ach) in the ground-floor unit to 0.91 air changes per hour in an upstairs unit. The mean air exchange rate for the entire monitoring period ranged from 0.29 ach in the downstairs unit to 0.71 ach in an upstairs unit.Indoor pollutant concentrations were generally low except for particulate matter in the units occupied by smokers. The particulate matter in these two units was two to four times higher than that measured in the unit occupied by nonsmokers. Levels of carbon monoxide were also slightly elevated in one of the smoker-occupied units compared to those in the unit with no smokers.
Measured air exchange rates and indoor air quality in multifamily residences
AbstractMeasurements of air exchange rate and indoor air quality were taken in three occupied units in three separate buildings of a multifamily complex at the Naval Submarine Base in Bangor, (State of) Washington, over 5–6 consecutive days in November 1983. These three identically-sized all-electric units were located in two-story, four-unit buildings that had been constructed in 1978. One unit was on the ground floor; the other two units were on the second floor.Pollutants monitored indoors included radon, formaldehyde, carbon monoxide, particulate matter, and nitrogen dioxide. Indoor and outdoor temperature and wind speed were also recorded. Outdoor formaldehyde and nitrogen dioxide were also measured. The air exchange rate was measured using a constant release of perfluorocarbon tracer; the airborne tracer concentration was collected automatically over continuous sampling periods of 6–8 hours.The average air exchange rate for a 24-h period ranged from 0.24 air changes per hour (ach) in the ground-floor unit to 0.91 air changes per hour in an upstairs unit. The mean air exchange rate for the entire monitoring period ranged from 0.29 ach in the downstairs unit to 0.71 ach in an upstairs unit.Indoor pollutant concentrations were generally low except for particulate matter in the units occupied by smokers. The particulate matter in these two units was two to four times higher than that measured in the unit occupied by nonsmokers. Levels of carbon monoxide were also slightly elevated in one of the smoker-occupied units compared to those in the unit with no smokers.
Measured air exchange rates and indoor air quality in multifamily residences
Parker, G.B. (author)
Energy and Buildings ; 9 ; 293-303
1986-01-01
11 pages
Article (Journal)
Electronic Resource
English
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