Preliminary Assessment of Indoor Air Quality in Terrace Houses

Abstract

Four terrace houses in Shah Alam were chosen for preliminary investigation of indoor air quality in residential buildings. The concentrations of carbon dioxide (CO2), carbon monoxide (CO) and particulate matters (PM10) in indoor of houses were determined. The effects of temperature, air velocity and relative humidity on the indoor air quality were also investigated. The results indicated that all of the average indoor concentrations of CO, CO2, and PM10 at the naturally ventilated residential buildings were below the limits of Malaysian guideline standards except for the indoor climate parameters. The indoor/outdoor ratios concentration of all air pollutants were found to be below one which indicates that outdoor air influences indoor air.