Odor detection threshold

Let's say you have a big bucket of stinky fish. When you first smell it, it might not be too bad, but as you keep smelling it, the smell gets stronger and stronger until it becomes unbearable. The odor detection threshold is like the point where you first start smelling the stinky fish.

Our sense of smell is very sensitive, and it can pick up even the tiniest amount of scent in the air. The odor detection threshold is the smallest amount of a particular substance that we can smell.

For example, if you have a rose in front of you, and you take a sniff, you can probably smell it easily. But, if you have a tiny drop of rose oil, you might not be able to smell it at all.

Scientists use the odor detection threshold to measure how strong a smell can be and still be detected by our noses. They do this by testing different concentrations of a substance and seeing at what point people can start to smell it. This information helps them understand how our sense of smell works and can be used to develop new scents or eliminate bad smells.