Indoor air quality in classrooms of a newly built school

Abstract

The presented paper deals with the evaluation of the quality of the indoor environment in a new school building with modular construction. The required short-term measurements were carried out in two selected classrooms. Selected physical-chemical factors such as thermal comfort, sound level, lighting conditions, concentration of CO2, particulate matter (PM0.5-PM10) and total volatile organic compounds (TVOC) were monitored. Based on the obtained results, it was shown that the values of operative temperature, relative humidity and air velocity measured in selected rooms meet the requirements given by legislation. The average CO2 concentration was exceeded in both classes, which may lead to headaches and concentration problems in pupils. Concentrations of PM2.5 were below the acceptable limit, while PM10 concentrations were exceeded in both classes. The recommended TVOC concentration of 200 ug/m3, which does not yet cause discomfort and has no adverse health effects, was exceeded in both classrooms.