Over 90% of 91 day care centers in greater Montréal, Québec exceeded 1000 ppm of CO2 during January through April 1989. Four variables were independent positive predictors of CO2 levels: the density of children in the center; presence of electric heating; absence of a ventilation system; and building age. High levels of CO2 are associated with respiratory tract and other symptoms. Clear standards and inspection policies should be established for day care center air quality.
Cites: BMJ. 1989 Dec 2;299(6712):1388-902513974
Cites: J Occup Med. 1987 Jan;29(1):57-623546636
Cites: Scand J Soc Med Suppl. 1985;36:1-393866314
Cites: Environ Res. 1989 Oct;50(1):37-552792060
Cites: Br Med J (Clin Res Ed). 1984 Dec 8;289(6458):1573-56439323