FIELD MEASURMENT OF VOLATILE ORGANIC COMPOUNDS IN OFFICE BUILDINGS BY PASSIVE SAMPLING AND INVESTIGATION FOR ITS SOURCE

Abstract

This study aimed at investigating indoor air qualities of chemical contaminants for office buildings. This research carried out measuring volatile organic compound (VOC) concentrations with the passive method during office hours at 102 office buildings. From the 24-hour continuous measurement, VOC concentrations have a different tendency between air conditioning and non air conditioning time. The results indicated that the passive samplers should be exposed for 8 hours during air conditioning time. The formaldehyde and acetaldehyde concentrations of some buildings were higher than guideline values. One of the reasons for the guideline exceeds might be environmental tobacco smoke leakage from smoking space neighbor the office room.