Indoor Air Quality Monitoring and Consulting

The management of Indoor Air Quality in the workplace requires stringent controls in order for organisations to maintain their corporate, regulatory and social requirements. In order to achieve this goal organisations need to monitor the indoor environment that their employees and the community are exposed to.

Legislation in New South Wales requires that employers, owners and operators of publicly accessed buildings provide a safe and healthy environment. In relation to office buildings, occupational health concerns centre on indoor air quality, including issues such as gasses, dusts, fibrous aerosols, microbial contamination and odours.

By undertaking appropriate testing, the status of the air quality within a building can be assessed. As well as ensuring a high standard environment for those occupying or visiting a building.

A typical indoor air quality monitoring assessment would include measuring the following parameters:

• Carbon Dioxide
  Indicator of effectiveness of the air conditioning system to maintain a healthy environment through air exchange with the external environment.
• Carbon Monoxide
  Indicator of the entrainment of incomplete combustion by-products into the indoor environment.
• Temperature and Humidity
  Relates to the perceived comfort level of individuals.
• Inspirable and Respirable Particulates
  Typically sources being dust, mists, environmental tobacco smoke (ETS) and combustion by-products.
• Total Volatile Organic Compounds (tVOC)
  Are emitted from many sources including building materials, cleaners, solvents, paints, carpets and fuel products.
• Airborne Bio-Aerosols
  Include fungi, yeasts, moulds, mildews and pollen, as well as bacteria, endotoxins, viruses and antigens.

Indoor air quality data collected can be compared with airborne contamination exposure limits and air quality guidelines and recommendations including those of the National Health and Medical Research Council (NHMRC), Safe Work Australia, Australian Standards and the International Standards Organisation.

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