odour release connundrum

[darriusdax]

I need to solve a problem for which I need a compound which will remain unactivated in a low humidity environment for up to ten years, but react strongly to the introduction of water and give off a strong odour. I would be interested in working with someone who could provide options for this scenario. cheers.

[John Cuthber]

Have you thought about this?
https://en.wikipedia.org/wiki/Micro-encapsulation