The first experimental results of the indoor air quality in two kindergartens
located in the Republic of Srpska are presented in this paper. Kindergarten
representatives for the year of construction (old and new), building
materials, and energy efficiency have been chosen. Indoor air quality
measurements (air temperature, relative humidity, ventilation rate, CO2, and
radon concentration) were performed during the winter of 2015/2016. Measured
indoor air quality parameters are discussed and compared to the
international standards BAS EN 16798-1, ASHRAE 62.1, and ISO 7730. The
average measured radon concentrations for both buildings have not exceeded
the level of 200 Bqm-3, but for reliable results, long-term measurement
needs to be performed. The CO2 concentration in the old kindergarten
fulfills the BAS EN 16798-1 requirement for category I during 62.43% of
total occupancy time, while for the new kindergarten, it is only 5.79% of
full occupancy time. Results of CO2 concentration confirm that good sealing
of the envelope of new buildings and user behavior (number of users and
natural ventilation) does affect air quality. Furthermore, a high
correlation between CO2 concentration and relative humidity in both
buildings and a more considerable correlation for the new building have been
observed.
