title: Air quality during the winter in Québec day-care centers.
abstract: 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.
authors.affiliation: Center for the Study of Biological Interactions between Health and Environment, Université du Québec à Montréal, Canada.
authors.forename: S
authors.initials: S
authors.lastname: Daneault
authors.forename: M
authors.initials: M
authors.lastname: Beausoleil
authors.forename: K
authors.initials: K
authors.lastname: Messing
mesh_terms: D016902:Air Pollution, Indoor / Q000032:analysis* / Q000706:statistics & numerical data; D002245:Carbon Dioxide / Q000032:analysis*; D002656:Child Day Care Centers; D002675:Child, Preschool; D011211:Electric Power Supplies; D004784:Environmental Monitoring; D005069:Evaluation Studies as Topic; D006361:Heating / Q000379:methods / Q000592:standards; D006801:Humans; D006813:Humidity; D008452:Maximum Allowable Concentration; D011792:Quebec; D013696:Temperature; D013997:Time Factors; D014691:Ventilation / Q000379:methods / Q000592:standards
chemical_list: D002245:Carbon Dioxide