I also agree with Tightslot, just what is the reason for not having a smoking area away from the non smokers?
CdG has one in Terminal 2E departures (possibly others too), a kind of glass box where the inmates can be observed sinning.
I heard one of the reasons for banning smoking on aircraft was due to the build up of nicotine/tar gloop which eventually added quite a lot of extra weight to the airframe. Could be a total rumour of course.