Abstract
Abstract New technologies and materials have introduced a large quantity of new pollutants emitted to the indoor air. Energy conservation for economical reasons, resulting in low outdoor air supply rates, can become the reason of a poor indoor air quality. The cost of the deteriorated indoor climate, resulting in reduced comfort and losses in productivity, for the society is higher than the costs for the heating energy or ventilation systems in the same building. An experiment was conducted to determine how poor indoor air quality could cause involuntary changes in performance and occurring sick building syndrome symptoms. Twenty‐four female subjects were exposed to three environmental conditions, while performing normal office tasks in a low‐polluting room. Sick building syndrome symptoms, the perceived air quality and performance data were obtained. The acceptability of air quality was significantly better and the odour intensity was much lower under the conditions of high ventilation. The performance o...
Highlights
The acceptability of the air quality was significantly better in the condition with a high ventilation than with a low ventilation (P
Economical factors arising with the increased energy use are important, priority should be given to better Indoor air quality (IAQ), as it will give reduce in medical care cost, increase of working days because of better health and would not decrease the performance of office work
The percentage dissatisfied with the perceived air quality decreased by 65 % when ventilation rate was increased
Summary
There has been a rapid development in building technologies, building materials, building services and energy technology over the past few decades. New technologies and materials have gained a rapid foothold since they confer evident production advantages. A similar development has taken place for fittings and furnishing materials, as well as furniture. A large quantity of new pollutants is emitted to the indoor air. Apart from the fact that the materials themselves can emit pollutants, they may act as storage areas for pollutants such as particles and gases from other sources. This depot effect, which may be both positive and negative, is governed by the surface of the material. A fleecy surface (eg textile surfaces) has a large depot effect than a hard and smooth surface
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