The original post is starting with inaccurate assumptions, that a cig
That is the amount of absorbed nicotine from a cig, not the total contained.
FALSE... The federal govt of Canada and Health Canada list the tobacco's toxic emissions present per unit on each/every tobacco item legitimately marketed. My figures are ACCURATE ! The total amount of nicotine in the tobacco is irrelevant ; only the amount present in the smokestream has any relevance and that's what's listed on the cig packaging. This amount is NOT absorbed amounts, only emitted amounts.
I think you're wearing that helmut too tight...
if you say the tobacco in a normal ksize cig has 20 times to 5 times more nicotine in it then is delivered in the airstream when smoking, then a cig with whatever amount of nicotine would only have 1/20 to 1/5 that amount available in the smoke stream .... doe ~
As for your claim 25 % is absorbed in vaping... research says the heat in the burning tobacco destroys most of the nicotine present in it's leaf, however, research also measures the temp of the heater of the e-cig at only 10% of a tobacco cig, soooo, common sense says more nicotine should be present in the vapestream than smokestream.
CASAA.org
http://www.fda.gov/downloads/Drugs/ScienceResearch/UCM173250.pdf
" The sparging apparatus was used to quantify the amount of nicotine released during use of these electronic cigarettes (Table 2). Levels found were consistent with
the labeling (low, medium and high); "
However, if there's far more nicotine present in the unburned tobacco cig than emitted when burned, then they'll likely average out about the same in terms of emitted amounts.
I stand behind my original post being accurate and true for the most part.
However, nicotine absorbed is relative to several issues, like a persons age, body-weight, race and fitness.
Generally, the lung's processes decline over time, and a healthy young adult's lungs aveoli are most effective at extracting gases from the bronchia's airstream and passing them across into the bloodstream.
The health of ones lung's functioning are also affected by environmental issues, like comparatively clear air versus industrially polluted air.
So too, those which formally exercise each week, like walking, cyclying, treadmilling, swimming etc, will have better lung function than those which don't, regardless of age.
However, the lungs processes can be severely and permanently damaged by such things as severe lung infections, like influenza, etc, corrosive fumes, like bleach, etc.