lightning Epidemiological studies suggest that children who are exposed to combustion contaminants from gas stoves have fossil fuel power stations higher rates of respiratory symptoms and illness than other motor vehicles children. Domestic combustion appliances emit nitric oxide There have been concerns that infants may be at a higher risk (NO), which is a reactive compound that is of symptoms of high indoor NO2 levels because of their high oxidised to NO2. respiratory rates in relation to body size and because they spend a large proportion of their time indoors. Formaldehyde Formaldehyde: Formaldehyde has a pungent odour and has irritating properties which cause discomfort. is released from most materials is used extensively as a preservative, The symptoms displayed short-term exposure to disinfectant and biocide formaldehyde are: irritation of the eyes, nose and throat, is a component of glues, varnishes, printing together with exposure-dependent discomfort, lachrymation, materials, textile treatments, permanent sneezing, coughing, nausea and dyspnoea. Children have markers, automotive equipment, and been reported to be more sensitive to formaldehyde exposure. dozens of other products is formed in combustion processes, tobacco In December 2012, the European harmonised classification smoking in particular and labelling system classified formaldehyde as a Category 1B carcinogen. It is formed by the air chemistry of terpenes, are contained in fragrances and air fresheners, and in particular as a product of the hydrolysis of Note: A Category 1 substance is known or presumed to have formaldehyde based resins (mostly urea carcinogenic/mutagenic potential for humans. For category formaldehyde, phenol formaldehyde, and 1A, the assessment is based primarily on human evidence; for melamine formaldehyde) resins. category 1B, the assessment is based primarily on animal evidence. Because of its multitude of indoor sources, formaldehyde is found ubiquitously in almost all Smoking is not permitted in schools. indoor environments at levels that exceed outdoor concentrations by an order of magnitude or more. Indoor concentrations of formaldehyde are influenced by temperature, humidity, ventilation
lightning fossil fuel power stations motor vehicles Domestic combustion appliances emit nitric oxide (NO), which is a reactive compound that is oxidised to NO2. Epidemiological studies suggest that children who are exposed to combustion contaminants from gas stoves have higher rates of respiratory symptoms and illness than other children. There have been concerns that infants may be at a higher risk of symptoms of high indoor NO2 levels because of their high respiratory rates in relation to body size and because they spend a large proportion of their time indoors. Formaldehyde Formaldehyde: is released from most materials is used extensively as a preservative, disinfectant and biocide is a component of glues, varnishes, printing materials, textile treatments, permanent markers, automotive equipment, and dozens of other products is formed in combustion processes, tobacco smoking in particular It is formed by the air chemistry of terpenes, are contained in fragrances and air fresheners, and in particular as a product of the hydrolysis of formaldehyde based resins (mostly urea formaldehyde, phenol formaldehyde, and melamine formaldehyde) resins. Because of its multitude of indoor sources, formaldehyde is found ubiquitously in almost all indoor environments at levels that exceed outdoor concentrations by an order of magnitude or more. Indoor concentrations of formaldehyde are influenced by temperature, humidity, ventilation Formaldehyde has a pungent odour and has irritating properties which cause discomfort. The symptoms displayed short-term exposure to formaldehyde are: irritation of the eyes, nose and throat, together with exposure-dependent discomfort, lachrymation, sneezing, coughing, nausea and dyspnoea. Children have been reported to be more sensitive to formaldehyde exposure. In December 2012, the European harmonised classification and labelling system classified formaldehyde as a Category 1B carcinogen. Note: A Category 1 substance is known or presumed to have carcinogenic/mutagenic potential for humans. For category 1A, the assessment is based primarily on human evidence; for category 1B, the assessment is based primarily on animal evidence. Smoking is not permitted in schools.
BB101_Guidelines_on_ventilation_thermal_comfort_and_indoor_air_quality_in_schools.docx