Carbon dioxide from (simulated) people distributes fairly evenly in a closed office room, but can show an irregular height distribution when the door to a connecting space is open. The distribution and room to room transfer of carbon dioxide is evaluated in a 4-room test building and is discussed in terms of its implication for C02-controlled ventilation.
In two case-referent studies the associations between questionnaire symptom reports, expressed as SES (Sick Building Syndrome) in office workers or facial skin symptoms among VDT-workers, and physical data from offices in 160 buildings were investigated. The results show that low outdoor airflow rate and presence of certain pollution sources, such as copying machines, tended to be associated with an elevated prevalence of SES.
This document is primarily intended to address industry and government questions regarding the impacts of recent Congressional activity on the subject of air quality. Air conditioning system performance levels on currently operational aircraft are documented. The effects upon aircraft design and operation are addressed, along with rough estimates of the economic consequences of proposed requirements.
Cabin air quality is a complex function of many parameters including ambient air quality, the design of the cabin volume, the design of the ventilation and pressurization systems, the way the systems are operated and maintained, and the presence of sources of contaminants and the strength of such sources.
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