Tobacco smoke is also an important source of Epidemiological studies involving large population groups, indoor CO pollution. where exposures were generally at relatively low carbon monoxide levels, have demonstrated increased incidences of low birth weight, congenital defects, infant and adult mortality, cardiovascular admissions, congestive heart failure, stroke, asthma, tuberculosis and pneumonia (WHO 2010). Smoking is not permitted in schools Ozone Outdoors, particularly in urban settings near areas Being a strong oxidant, ozone can exert various physiological of high traffic, levels of ozone can become effects on pulmonary (lung) function, including reductions in sufficiently elevated to cause health problems, lung function, air-exchange rates, and airway permeability. particularly in sensitive individuals, such as elderly people or asthmatics. Since outdoor air is Ozone can also act as an irritant. drawn into buildings through ventilation systems or open windows, elevated outdoor ozone levels The health impacts of exposure to elevated ozone levels can cause elevated levels indoors. include eye irritation, shortness of breath (dyspnoea), A number of indoor sources can increase ozone coughing, asthma, excessive mucous production, mucous levels even more and have been known to cause membrane irritation, and chest pain upon inhalation. respiratory problems. The indoor sources of ozone are: Subjects such as asthmatics and those with allergic rhinitis office machinery (particularly electrical may be particularly susceptible to the effects of elevated equipment) ozone. computer terminals laser printers photocopiers Photocopiers are usually fitted with carbon filters to minimise emissions. However, without an effective maintenance regime, ozone concentrations can rise to unacceptably high levels.
Tobacco smoke is also an important source of indoor CO pollution. Epidemiological studies involving large population groups, where exposures were generally at relatively low carbon monoxide levels, have demonstrated increased incidences of low birth weight, congenital defects, infant and adult mortality, cardiovascular admissions, congestive heart failure, stroke, asthma, tuberculosis and pneumonia (WHO 2010). Smoking is not permitted in schools Ozone Outdoors, particularly in urban settings near areas of high traffic, levels of ozone can become sufficiently elevated to cause health problems, particularly in sensitive individuals, such as elderly people or asthmatics. Since outdoor air is drawn into buildings through ventilation systems or open windows, elevated outdoor ozone levels can cause elevated levels indoors. A number of indoor sources can increase ozone levels even more and have been known to cause respiratory problems. The indoor sources of ozone are: office machinery (particularly electrical equipment) computer terminals laser printers photocopiers Photocopiers are usually fitted with carbon filters to minimise emissions. However, without an effective maintenance regime, ozone concentrations can rise to unacceptably high levels. Being a strong oxidant, ozone can exert various physiological effects on pulmonary (lung) function, including reductions in lung function, air-exchange rates, and airway permeability. Ozone can also act as an irritant. The health impacts of exposure to elevated ozone levels include eye irritation, shortness of breath (dyspnoea), coughing, asthma, excessive mucous production, mucous membrane irritation, and chest pain upon inhalation. Subjects such as asthmatics and those with allergic rhinitis may be particularly susceptible to the effects of elevated ozone.
BB101_Guidelines_on_ventilation_thermal_comfort_and_indoor_air_quality_in_schools.docx