Indoor Air Quality

Indoor air quality (IAQ) is a term which refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants.

IAQ can be affected by gases (including carbon monoxide, dioxide and radon,), particulates, microbial contaminants (mould, bacteria). Source control, filtration and the use of ventilation to dilute contaminants are the primary methods for improving indoor air quality in most buildings.

The number of incidents associated with ill health, discomfort and nuisance in the indoor environment is increasing. This is occurring at the same time as the indoor environment is becoming more complex and more enclosed.



Conditions that cause poor indoor air quality are frequently pinned down to flaws in the heating, ventilation, and air conditioning (HVAC) systems. Other causes have been attributed to contaminants produced by some types of building materials, volatile organic compounds (VOC), moulds, improper exhaust ventilation, or lack of adequate fresh-air intake/air filtration.

Such incidents can have a very real effect in the workplace and the symptoms may include high levels of employee sickness or absenteeism, lower productivity, low job satisfaction and high employee turnover.

Coral Environmental can provide a comprehensive Indoor Air Quality report which will describe the observations made and include recommendations and conclusions to confirm whether the ventilation plant and indoor air quality is being maintained at an acceptable hygienic and mechanical standard.

  • Radon

  • Weld fume

  • Dust – all types

  • Mould

  • Bacteria

  • Aspergillus

Scroll to Top