Odor Detection Threshold

From Open Source Ecology
Jump to: navigation, search


  • This is a measure of what concentration of a substance is needed in air in order for it to be smelled
  • Not only does it vary from chemical to chemical, but it also varies person to person, and with each person's age/health (Loss of Taste and Smell is a symptom of COVID-19, and even congestion can effect the Odor Detection Threshold)
  • Also one can experience Olfactory fatigue (aka "Nose Blindness" ) and thus gradually loose detection of the hazard
  • Despite this there is use to the estimate to get an idea of about when it should be detected
  • An issue is for some chemicals the Median Lethal Dose and/or the Lower Explosive Limit can be below the Odor Detection Threshold, thus waiting to smell the chemical before evacuating etc may not work

Internal Links

External Links