What is the cause of urine smell?

[David Johnston]

On Wed, 26 Jan 2000 14:47:41 +0100, 3S
<io174612 at student.io.tudelft.nl> wrote:

>Dear reader,
>
>Currenlty I am developing a public urinal for placement in public space.
>
>One of the main problems is that the existing urinals stink. This smell
>causes people not to use the urinal and urinate elsewhere.
>To solve this smell problem it is required to get a good insight in its
>causes.
>
>
>
>   *      What causes the smell of urine and what reactions and bacteria
>     play a part in this?
>   *      What are the circumstances under which the smell appears?
>   *      Does the layer of ureum that forms on frequently urinated
>     spots contribute to the smell?
>
>Thank you!
>

What difference does it make?  Just drop one of those swell blue disks
in there.... those things are pungent enough to overcome even the most
potent excretions!  ;-)