The measurement of IAP
The layout plan of the office building was used to mark the location of sampling point. The concentration of TVOCs was measured using a handheld ppb monitor
The concentration of CO and CO2 was measured simultaneously in the sampling location determined by the work station of building occupants using Q-Trak. The indoor air pollutant was separated into two major types based on their characters i.e. the particulate matter and the ultrafine particle (UFP). Aerosol monitors (The Dust Trak and Side Pack)were used to measured PM
10 and PM2.5. The data was collected in real-time at each sample location. They sample location was determined randomly according to the work station of the office workers using the standard procedure by Industry Code of Practice on Indoor Air Quality 2010(Department of Occupational Safety and Health, 2010). The ultrafine particle counter then was used to measure the UFPin the working area. All the instruments were located at the same level of breathing areas.