Air quality as an important indicator for ergonomic offices and school premises
¹Department of Work Environment and Safety, Tallinn University of Technology, Ehitajate 5, EE19086 Tallinn, Estonia; *Correspondence: firstname.lastname@example.org 2Department of Chemical Engineering of Tallinn University of Technology, Ehitajate 5, 19086 Tallinn, Estonia
The health risk assessment model for office rooms contains the physical indoor air factors and the risks connected with the use of computers. Four comfort classes have been postulated. Indoor air quality is the main risk factor at workplaces such as office rooms and schools besides non-ergonomic use of computers. High levels of carbon dioxide (CO2) could be observed due to poor ventilation systems and inadequate air exchange due to inoperable windows. Overcrowded classrooms could also be the reason for a high CO2 level. Lowering the occupancy and increasing the breaks between classes could alleviate the high CO2 concentrations in schools and offices. The data of Estonian investigators are analyzed. Experiments for determination of the adequacy of ventilation rate and the respective build-up of CO2 are carried out by the authors of the paper.