dioxins from cigarette smoking

[Yoke Berry <yoke@uow.edu.au>]

At a recent seminar on dioxins a Public Health Official, in trying to avert
attention from the high dioxin emissions from the local sinter plant,
stated that cigarette smoking also produced dioxins. It was claimed that 20
cigarettes could expose a person with 4.3 pg/kg/day.
How correct is this and is there a scientific paper to back it up ?
Thanks for your help and I apologize if this subject has been discussed before.

Yoke Berry
Wollongong
Australia