Which Odorant Has the Lowest Detection Threshold?

Odor detection threshold is defined as the lowest concentration of an odorant that can be detected reliably [26].

Does olfaction have low threshold?

The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. ... The olfactory mechanisms responsible for a compound's different detection threshold is not well understood. As such, odor thresholds cannot be accurately predicted.

What is an aroma or Odour threshold?

Odor threshold is the minimum concentration of a substance at which a majority of test subjects can detect and identify the characteristic odor of a substance. While odor thresholds can serve as useful warning properties, they must be used cautiously because olfactory perception varies among individuals.