Error Handling - send message to site admin

[eluser]jdav3579[/eluser]
Hi,
I am new to error handling and CI, I am trying to determine if when an error occurs is it possible for code igniter not only to log the problem as PHP does, but to also send the error to the site admin as an email?
If this is possible is it difficult and can anyone point me in the direction to start.

Kind regards
John