Indoor carbon dioxide concentrations in Croatian elementary school classrooms during the heating season

  • Dario Brdarić Institute of Public Health for the Osijek-Baranya County, Osijek, Croatia
  • Krunoslav Capak Croatian Institute of Public Health, Zagreb, Croatia
  • Vlatka Gvozdić Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, Croatia
  • Andrea Barišin Croatian Institute of Public Health, Zagreb, Croatia
  • Jagoda Doko Jelinić University of Zagreb, School of Medicine, School of Public Health „Andrija Štampar“, Zagreb, Croatia
  • Andrey Egorov World Health Organization, European Centre for Environment and Health, Germany
  • Matej Šapina Josip Juraj Strossmayer University of Osijek, Faculty of Dental Medicine and Health, Osijek, Croatia
  • Sanja Kalambura University of Applied Sciences Velika Gorica, Velika Gorica, Croatia
  • Karolina Kramarić Josip Juraj Strossmayer University of Osijek, Faculty of Dental Medicine and Health, Osijek, Croatia
Keywords: CO2, indoor air quality, ventilation

Abstract

Aware that exposure to stuffy indoor air with high levels of carbon dioxide (CO2) is associated with higher absenteeism and reduced academic performance in school pupils, the World Health Organization (WHO) Regional Office for Europe initiated indoor air quality surveys in schools, including CO2 monitoring, to assess ventilation and exposure to stuffy air. Here we report the findings of the first such survey in Croatia. It was conducted in 60 classrooms of 20 urban and rural elementary schools throughout the country during the heating season. Measurements of CO2 levels showed that all 60 classrooms exceeded the international guidelines of 1938 mg/m3. Mean CO2 concentrations ranged from 2771 to 7763 mg/m3. The highest concentration measured in urban schools was 7763 mg/m3 and in rural schools 4771 mg/m3. Average CO2 levels were higher in continental schools (3683 mg/m3) than the coastal ones (3134 mg/m3), but all demonstrate poor ventilation during the heating season all over Croatia.

Published
2019-12-03
How to Cite
1.
Brdarić D, Capak K, Gvozdić V, Barišin A, Doko Jelinić J, Egorov A, Šapina M, Kalambura S, Kramarić K. Indoor carbon dioxide concentrations in Croatian elementary school classrooms during the heating season. Arh Hig Rada Toksikol [Internet]. 2019Dec.3 [cited 2020Jan.28];70(4). Available from: https://arhiv.imi.hr/index.php/arhiv/article/view/1189
Section
Original article