[Atmos_enviro_health] Dioxine emissions from wood fires

[Tom.Beer at csiro.au]

Dear Constance et al.,
The WHO recommendations relate to a tolerable daily intake.  I had
always thought that this meant ingestion plus inhalation.  The idea
being that one has no way of knowing whether the material is also
exhaled.  Thus dioxin in bushfire smoke presents a health risk to
fire-fighters.

If there are studies that show that the inhalation and exhalation of
dioxins are equal then the views that you present below would be
correct.  Are there any such studies?

Regards

Tom Beer
Co-ordinator
CSIRO Environmental Risk Network
PB1 Aspendale, Vic 3195, Australia
+61 3 9239 4546  Fax: +61 3 9239 4444
tom.beer at csiro.au


-----Original Message-----
From: atmos_enviro_health-bounces at anu.edu.au
[mailto:atmos_enviro_health-bounces at anu.edu.au] On Behalf Of DEWAN
Constance
Sent: Thursday, 9 December 2004 12:41 PM
To: 'atmos_enviro_health at anu.edu.au'
Subject: [Atmos_enviro_health] Dioxine emissions from wood fires

Hi All, 

I recently attended a seminar on dioxins at which it was stated that
there
was a rise in dioxin levels in the ambient air in winter due to wood
fire
(open fire places and wood heaters) use. However, there were some views
that
the rise in dioxin levels in the ambient air did not present a health
risk
to the population as it was only ingestion of dioxins that was a
problem.
Any views on this?

Regards,

Constance Dewan.