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Method
By previous studies using
smoker-cued machine smoking to give total tar and nicotine inhaled,
in combination with analysis of the amount retained in the filter,
analysis in this study of the filter enabled estimation of amounts of
nicotine and tar inhaled. The most proximal 1 cm of butt was analysed, between the mouth end and the
filtration vents.
Reference
D.C. Mariner, M. Ashley, G. Errington, G. Mullard,
S.K. Prasad, J. Sheppard and C.J. Shepperd. Cross-sectional study of cigarette
smoke exposure in eight countries. British American Tobacco, Group
Research and Development, Southampton UK. Poster, SRNT
meeting Dublin April 2009.
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|
Results
|
|
NZ
|
Australia
|
|
N
|
391
|
704
|
|
% of market surveyed
|
52
|
41
|
|
Cigarettes per day
|
18.8
|
21.5
|
|
Tar /cigarette mg men
|
17.9
|
14.1
|
|
mg women
|
17.2
|
11.9
|
|
Nicotine/cigarette men
|
1.65
|
1.60
|
|
mg women
|
1.46
|
1.27
|
|
Tar per day mg
|
321
|
281
|
|
Nicotine per day mg
|
30.0
|
29.6
|
Comment:
Exposure
to tar and nicotine is much higher in
reality
than previously admitted by the
manufacturers or published by them on the packets.
Tar (the visible particulates or
solids in smoke)
contains some toxicants
causing cancer. Most of the
harm is from invisible
gases in the smoke.
RYO brands were not included.
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