Investigating IAQ

Typically people will report that they are experiencing symptoms believed to be caused by IAQ. Unfortunately finding the source or cause can often be difficult. The steps taken may vary from situation to situation but will include:

• Investigate the ventilation system to make sure it is operating properly (e.g., the right mix of fresh air, proper distribution, filtration systems are working, etc.).
• Look for possible causes (e.g., source of a chemical, renovations, mould, etc.). (see a sample Inspection Checklist, below).
• Rule out common causes of the symptoms such as noise, thermal comfort, humidity, ergonomics, lighting, etc.
• Conduct a survey to help pin-point work sources and causes (see below for a sample survey).
• Consider help and/or air testing by a qualified professional.

SOURCE: Canadian Centre for Occupational Health. (2020, April 11). Indoor Air Quality - General : OSH Answers. Retrieved from https://www.ccohs.ca/oshanswers/chemicals/iaq_intro.html