Schlussbericht
(Englisch)
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A European project started at the end of 1992, in which current methods as well as a trained panel were used to investigate office buildings all over Europe. The main aim of this EC Audit was to develop assessment procedures and guidance on ventilation and source control, which help to optimize energy use in office buildings while assuring indoor air quality. Participants from 16 institutes in 11 countries (The Netherlands, Denmark, France, Belgium, United Kingdom, Greece, Switzerland, Finland, Norway, Portugal, Germany) joined.
A common agreed Europe-wide method to investigate indoor air quality in office buildings, including a common agreed European questionnaire and walk-through survey checklist were developed.
In nine countries, six or more office buildings were selected. Measurements were performed at five selected locations in each building. The buildings were studied while normally occupied and ventilated to identify the pollution sources in the spaces and to quantify the total pollution load caused by the occupants and their activities and the ventilation systems. The investigation included physical and chemical measurements, assessment of the perceived air quality in the spaces by a trained sensory panel, and measurement of the outdoor air supply to the spaces. The physical and chemical measurements in the spaces included measurements of noise, concentrations of carbon dioxide ()2C,0 carbon monoxide (CO), total volatile organic compounds (TVOC), and the thermal parameters: operative temperature, air temperature, relative humidity and air velocity. Airfiows between the selected spaces and adjacent spaces were measured when necessary. Additional measurements in the adjacent spaces included measurements of CO, C2O and TVOC and assessments of the perceived air quality. In the mechanically ventilated buildings the perceived air quality of the supply air in the five selected spaces were assessed by the sensory panel. At one of the five selected locations of each building the measurement further comprised measurement of individual volatile organic compounds (VOC), and of airborne particulate matter. All chemical measurements were also performed outdoors. A questionnaire for evaluating retrospective and immediate symptoms and perceptions was given to the occupants of the buildings.
The building characteristics were described by use of a check-list. The annual energy consumption of the buildings and the weather conditions were registered.
This report presents the results, conclusions and recommendations of the audit performed in 56 buildings in Europe. Furthermore, assessment procedures of indoor air quality and energy performance of office buildings are discussed and challenges for the future are given.
The originally set objectives were fulfilled.
Auftragnehmer/Contractant/Contraente/Contractor:
Autorschaft/Auteurs/Autori/Authors:
Bluyssen,P.
De,Oliveira F.
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