Perceived air quality and sensory pollution loads were measured in 6 office buildings with mechanical ventilation without recirculation, in each buildings in 6 representative non-smoking medium-sized and small offices with mixing ventilation. An untrained panel of 43 subjects assessed the air quality on a normal weekday when the building was occupied, and on a weekend without occupants in the building. On both occasions the ventilation system was in operation as on a normal working day. Outdoor air supply rate, air temperature, relative humidity, concentration of carbon dioxide and ultrafine particles were measured. The percentage of persons dissatisfied with air quality ranged from 3 to 30%, decreasing with increasing outdoor air supply rate from 1 to 4 L/(sxm2floor). Total sensory pollution loads ranged from 0.08 to 0.37 olf/m2floor in occupied buildings and from 0.04 to 0.27 olf/m2floor in unoccupied buildings. They are somewhat lower than the loads measured in earlier studies.
|Title of host publication||Proceedings of Indoor Air 2002|
|Publication status||Published - 2002|
|Event||9th International Conference on Indoor Air Quality and Climate - Monterey, CA, United States|
Duration: 30 Jun 2002 → 5 Jul 2002
Conference number: 9
|Conference||9th International Conference on Indoor Air Quality and Climate|
|Period||30/06/2002 → 05/07/2002|