The importance of school air quality

Ensuring a school with the best possible air quality enhances the school’s primary focus
of educating children. A clean, fresh, and toxin free environment is the focus of School Ventilation Australia. We pay particular attention air quality issues from the very
beginning of our process.

Pollution Types and Sources

To improve school environmental quality, School Ventilation Australia assesses air quality and finds ways to eliminate sources of contamination from outdoors and well as indoors.

Humidity

Humidity causes mold that damages the school and can lead to health and performance problems for occupants .

The Built Environment

Existing structures may allow moisture and pollutants to effect air quality. School Ventilation Australia provided preventive on-site solutions to reduce these problems and health risks.

Ventilation provision - School Ventilation recommends that the design should also meet these requirements:

Controllable purpose build ventilation should provide external air to all areas

Additional ventila to rs should be provided to create this extra ventilation, supplementing windows and doors. Ventilation needs may vary but good ventilation should be available and controllable by occupants.

Ventilation for Indoor air quality

In busy urban areas exposure levels inside a building are likely to result from pollutants generated from inside and outside buildings.Good indoor air quality depends on minimising pollutants from indoor sources, as well as pollutant ingress by effective design of the building and operation of the ventilation system.

Indoor air pollution sources

Pollutants from indoors originate from people and their activities, as well as from the building, itself, including cleaning materials and furnishings. The major CO2 indoor pollutants and their sources include:

CO2 levels in classrooms rise from the start of the day, peaking before lunch and then decreasing over the lunch period when the classrooms are empty. After lunch CO2 levels rise to a peak at the end of the school day at 3.30pm. CO2 levels from combustion may be higher in food preparation areas and in science labs.

Odour

Odour is an indicator of poor air quality, and is emitted from people and the various materials found in schools. An adequate level of fresh air provided to classrooms avoids significant odour.

Volatile organic compounds

Volatile organic compounds are emitted from products including: building materials and furnishings, cleaning products, markers, glues and paints. Volatile organic compounds in schools include: :

Some volatile organic compounds are toxic and can adversely affect children (for example, those that suffer asthma and allergies). At the levels found in school buildings, the most likely health effect is irritation of the eyes, nose, skin and respira tory system.

Moisture and humidity

Moisture is generated through activities such as cooking. High humidity in areas like as kitchens, bathrooms, gyms and changing rooms can lead to moisture falling on cold surfaces resulting in mould growth. Fungi and dust mites can also be a problem. Dust mites thrive in moist warm conditions and their droppings are known to cause allergic reactions in some people.

Ozone

Ozone comes from office equipment such as photocopiers and printers and can cause respiratory problems.

Carbon monoxide

Carbon monoxide is the result of incomplete combustion and comes from , gas stoves and water heaters. It is odourless, colourless and tasteless but potentially fatal even at low concentrations.

Particulate matter

Particulate matters include smoke particles, spores, biological fragments and fibres. Some are unhealthy, such as, fibres from particle boards and bacteria.