What is an odor's threshold?

The threshold of an odor refers specifically to the minimum concentration of an odorant that can be detected by the olfactory system, which is the sensory system responsible for the sense of smell. This concept is fundamental in odor control and detection because it determines the lowest level of a particular substance that a person can sense. Understanding this threshold helps professionals identify when an odor is present and assess the degree of its impact on a space, which is crucial for effective remediation procedures.

In the context of odor management, knowing the threshold is important for evaluating how odors can affect people, environments, and even materials. If the concentration of an odorant is below this threshold, it will not be noticed, while once it surpasses this level, it becomes detectable. This principle is essential for technicians who aim to mitigate odors, as they need to be aware of the levels at which odors become a concern to effectively address them.