Why are “good smells” like perfume or flowers more likely to fade quickly than “bad smells” like smoke and rotting food?

Question

Why are “good smells” like perfume or flowers more likely to fade quickly than “bad smells” like smoke and rotting food?

In: Chemistry

Answer 1

They don’t really, but your sensitivity to odours is increased, especially those of rotting food. Usually there’s a survival component to it, and with time we became sensitive to those smells.
Smoke is an exception, as it contains a higher concentration of airborne particles that can adhere to objects and give off a persistent odour.