A study of indoor air quality of public toilet in University´s building

This paper presents a study of IAQ in toilets located in the Faculty of Civil and Environmental Engineering building, Universiti Tun Hussein Onn Malaysia (UTHM). This study was conducted to determine the level of gas pollutants exist in the male and female toilets. The important IAQ parameters considered in this study are SO₂, NO, and CO₂. The measurements were conducted during break hour and taken using air quality monitoring. The result indicated that SO₂ exceeded the threshold value and this could have adverse effect on inhalation such as asthmatic. Finally, the existing SO₂ was affected by mechanical ventilation mode, while the existing CO₂ was more generated in female toilet.