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Document ID (ISN)110032
CIS number 09-1006
ISSN - Serial title 0340-0131 - International Archives of Occupational and Environmental Health
Year 2008
Convention or series no.
Author(s) Norbńck D., Nordstr÷m K.
Title Sick building syndrome in relation to air exchange rate, CO2, room temperature and relative air humidity in university computer classrooms: An experimental study
Bibliographic information Oct. 2008, Vol.82, No.1, p.21-30. 32 ref.
Abstract The objective of this study was to evaluate the effects of ventilation and temperature changes in university computer rooms on symptoms among students. Two classrooms had higher air exchange; two others had lower air exchange. After one week, ventilation conditions were interchanged between the rooms. The students reported symptoms during the last hour, on a seven-step rating scale. Measurements included room temperature, relative humidity carbon dioxide (CO2), PM10 and ultra-fine particles, illumination, air velocity, formaldehyde, nitrogen and ozone. Data were subjected to multiple regression analyses. It was found that computer classrooms may have CO2 above 1,000 ppm and temperatures above 22░C, and that these conditions may affect mucosal membrane symptoms, headaches and tiredness. Other findings are discussed.
Descriptors (primary) symptoms; computers; young persons; sick building syndrome; educational institutions; premises
Descriptors (secondary) air temperature; airborne dust; subjective assessment; Sweden; carbon dioxide; statistical evaluation; migraine; fatigue; mucous membrane diseases; ventilation systems; state of health
Document type D - Periodical articles
Country / State or ProvinceSweden
Subject(s) Commerce, services, offices
Heating, ventilation and climate
Broad subject area(s) Chemical safety
Occupational medicine, epidemiology
Browse category(ies) Sick building syndrome
Office work
Teaching and educational institutions