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I have not seen any mention of this on here (apologies if I missed it) but there is quite an interesting study being carried out by Virginia Commonwealth University in the US. They have been studying blood plasma concentrations of nicotine in both first time e-cig users (smokers) and experienced vapers. The early indications suggest that experienced vapers using "mods" are achieving nicotine blood concentrations at a similar level to or even surpassing that from cigarettes. This is in sharp contrast to earlier studies carried out by the university (widely reported) which showed naive first time users, using a commercial starter kit (a Crown 7 kit with 16mg/ml cartridges) were receiving barely detectable levels of nicotine from the e-cigs compared to cigarettes.
This post from Bill Godshall on ECF I think nicely sums up the results so far - http://www.e-cigaret...tml#post3014893
This PDF of a presentation shows the results so far from the ongoing studies in more detail - http://www.preventio...m_Reduction.pdf
I think this is interesting but it shows what most of us already know - e-cigs work, but their effectiveness is dependent on user experience, and devices widely vary in their effectiveness.
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Study shows e-cig mods deliver similar nicotine levels to cigarettes
Started by
PapaLazarou
, Apr 20 2011 12:37 PM
#1
Posted 20 April 2011 - 12:37 PM
PapaLazarou
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#2
Posted 20 April 2011 - 02:01 PM
Christophe
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Hey papalazarou,
That's great news, I had read some other posts and studies highlighting the fact that vaping was not delivering significant amounts of nicotine to the users. But I was finding that slightly weird as I did not crave nicotine after a good vaping session.
I like the fact that this study does not rely solely on 'mall' brands! As it is true, I remember the first devices, those that looked like real ciggies with the red right flashing at the end of it... rubbish! I was craving with those that's for sure!
Thanks for the links!
That's great news, I had read some other posts and studies highlighting the fact that vaping was not delivering significant amounts of nicotine to the users. But I was finding that slightly weird as I did not crave nicotine after a good vaping session.
I like the fact that this study does not rely solely on 'mall' brands! As it is true, I remember the first devices, those that looked like real ciggies with the red right flashing at the end of it... rubbish! I was craving with those that's for sure!
Thanks for the links!
Be your own Leader!
#3
Posted 20 April 2011 - 05:00 PM
Kenny
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Interesting links Papalazarou, and this report confirms what I thought as I have no cravings so must be getting adequate nic intake.
Be nice to your kids they'll choose your nursing home.
I buy from anyone who sells good products at the right price, even quit kit vendors.
I buy from anyone who sells good products at the right price, even quit kit vendors.
#4
Posted 21 April 2011 - 01:16 AM
PapaLazarou
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Glad you both found it interesting 
IMO, part of the common line of thinking that e-cigs do not deliver much nicotine stems from the early testing carried out in New Zealand on Ruyan e-cigarettes. The PDF has a reference to a test of Ruyan e-cigs which they indicate delivered blood plasma levels of 1.3 nanograms nic per ml of blood from a 16mg cartridge, presumably being used as directed. This compares with around 20 nanograms achieved on average with a regular cigarette (according to this particular test). I don't know how many of you have tried a Ruyan e-cig but I have and they are not a patch on any of the better performing modern e-cigs. They produce a mere wisp of vapour compared with the very dense vapour achieved from e.g. a MAP tank on a 3.7v device.
A note of caution, but I think this newer testing gives an indication that with current high performing mods we do need to be careful about nicotine intake. The person vaping the Chuck with 24mg juice reached blood plasma levels of 40 nanograms per ml blood when allowed to vape as they wanted. That seems to be well above what the smokers achieved. Constant puffing on say, 36mg juice on a high performance mod might be resulting in very high nicotine levels. Just something to bear in mind I think.
IMO, part of the common line of thinking that e-cigs do not deliver much nicotine stems from the early testing carried out in New Zealand on Ruyan e-cigarettes. The PDF has a reference to a test of Ruyan e-cigs which they indicate delivered blood plasma levels of 1.3 nanograms nic per ml of blood from a 16mg cartridge, presumably being used as directed. This compares with around 20 nanograms achieved on average with a regular cigarette (according to this particular test). I don't know how many of you have tried a Ruyan e-cig but I have and they are not a patch on any of the better performing modern e-cigs. They produce a mere wisp of vapour compared with the very dense vapour achieved from e.g. a MAP tank on a 3.7v device.
A note of caution, but I think this newer testing gives an indication that with current high performing mods we do need to be careful about nicotine intake. The person vaping the Chuck with 24mg juice reached blood plasma levels of 40 nanograms per ml blood when allowed to vape as they wanted. That seems to be well above what the smokers achieved. Constant puffing on say, 36mg juice on a high performance mod might be resulting in very high nicotine levels. Just something to bear in mind I think.
