RESTRICTED
30 th Hay 1977
File Copy No.1
TO: MR. P.SHEEHY ~ZE2
MR. R.ST.C.WALMI Y No.3
MR. C.BOWRA No. 4
The appended Rep,-)rt (RD.149-1 Rer;trictcrl) May
seew., at first sight, to bc- nimply a tcchnizal
analytical
report, of interest to laboraturins jnly.
However it oresents 'ata on th--~ levcls f-)und in
t~ibac---:) '.~f a material,
141-nitron.:)n)rnicotine, t,hi~..:h 1:-, a kn~)t;n
carcinogen, also found in t::~baszco 5;"w.Ae and
i~ -;iPnti:)n,ad
in the forthcoming R.C.P. Rep~-rt. Prc-.-ViDunly'
-,-.u n'...; t': e!
carcinon-c-nic agents have been found to bc~?
largely
during the burning of the t--;ba~:c:). In thi.-
in.;;tan-:- thc -riaj-)r
fraction of this natticular material in -noke
t-,an.-:f(-r.-- from
the tobacco. The implication uf this is that
eff-~,-t-.- to
reduce this -iaterial in smoke, ~Aher than by
filti.ati-,n,
should be concentrated on the tcbacc-.~, rath(,r-
than --n th,7,
combustion procesr. There is eviden~~e thr)t
F.W11P
can be achieved by reconstituting tobac,---1,
int-) -he-t 'in,1 further
work is underway to explore the influence of b~,th
nitr.ooen
fertilization and curing an the formati-Dn c;,f
this substance.
Enc: D.G.FELT014
c.c. Mr.D.J.WoDd
cc
BATCO document for Province of BritiSh ColUrnbia 5
November 1999