... environment The quality of the indoor environment reflects on the health, comfort and productivity of individuals in buildings. The main reason for the lack of awareness of the problems is due to the ... construction, and other factors determine the quality and quantity of allergic components, for example, geographical loca- tion, time of the year, time of day, altitude, weather conditions and flora and ... special report, the possible causes of indoor air pollution and its impact on the health, comfort and productivity of the building occupant are discussed. The causes and symptoms of sick building...