Analysis of indoor air parameters in an education building

Abstract

Main parameters of IAQ (indoor air quality) could influence people health as well as their ability to learning and work. This research on IAQ was conducted in a classroom of Bialystok University of Technology located in the north-eastern part of Poland. We focused on issues related to indoor temperature, relative humidity, carbon dioxide concentration, air change rates and noise. Indoor temperature was recorded in a range from 23.1 °C to 24.9 °C, so higher than design temperature set at 20 °C or comfort temperature found as average 22 °C [1]. On the other hand, relative humidity was slightly lower than recommended minimum 40 % (range 31.7 % to 38.3 %). Moreover, we found that the concentration of carbon dioxide during the experiment was constantly increasing to final 1067 ppm, while the average air exchange rate was 1.5 h–1.