. "This study reviews the scientific literature on indoor air pollution and concludes that indoor air pollution is a problem in Canadian homes. Major pollutants include carbon monoxide, nitrogen oxides, radon gas, formaldehyde, tobacco smoke, ozone, asbestos, dust and moulds, bacteria and viruses, and a host of organic chemical vapours, some of which are known or suspected carcinogens. The study states that indoor air pollution is a total population problem and that a significant number of Canadian are in high-risk categories with respect to pollutant exposure. There is also a small but growing population of chemically susceptible persons in Canada for whom today's residential air quality levels are totally unacceptable, and who require low-pollution housing."@en . . . . . . . . . "This study reviews the scientific literature on indoor air pollution and concludes that indoor air pollution is a problem in Canadian homes. Major pollutants include carbon monoxide, nitrogen oxides, radon gas, formaldehyde, tobacco smoke, ozone, asbestos, dust and moulds, bacteria and viruses, and a host of organic chemical vapours, some of which are known or suspected carcinogens. The study states that indoor air pollution is a total population problem and that a significant number of Canadians are in high-risk categories with respect to pollutant exposure. There is also a small but growing population of chemically susceptible persons in Canada for whom today's residential air quality levels are totally unacceptable, and who require low-pollution housing."@en . . "Indoor air pollution and housing technology"@en . . . . . . . . . . . . . . . . . . . . . "Bruce M. Small and Associates Limited." . . . .