What is often the first step in any air quality investigation related to mould?

The first step in any air quality investigation related to mould is conducting a visual inspection. This initial assessment is crucial because it allows for the identification of potential sources of mould growth, such as water damage, moisture accumulation, or visible mould colonies. During the visual inspection, the investigator can also note areas that might be conducive to mould growth, such as basements, kitchens, or bathrooms where humidity levels are often higher.

Identifying visible mould and the conditions leading to its proliferation provides important context for any subsequent actions, whether they involve sampling air to quantify mould spores or addressing moisture problems. This step helps to prioritize areas for further investigation or remediation and allows for a more targeted approach to managing indoor air quality.