New study proves there is no second-hand vaping: e-cigarette aerosol contains less volatile compounds than normal exhaled breath

By Dr Farsalinos

A new study was published today (September 7th,2015) in Journal of Chromatography A. The study was performed by the Spanish Council of Scientific Research. They measured the levels of several volatile organic compounds (VOC, they measured 156 compounds) in indoor air, normal exhaled breath, smoke of tobacco cigarettes, exhaled breath of smokers after taking cigarette puffs, e-cigarette aerosol and exhaled breath of vapers after taking e-cigarette puffs.

First, let me clarify that VOCs are a large group of compounds, some (but not all) of which are toxic. The study has some methodological problems. In the Sampling section, they mention: β€œPeople inspired and expired deeply three times, then retained the breath for 20 s and blew into the Bio-VOC body through a disposable cardboard mouthpiece at their highest capacity”. Obviously, smokers or vapers do not hold their breath for 20 seconds before exhaling the breath. Thus, the study probably overestimated the absorption rate of VOCs present in cigarette smoke or e-cigarette aerosol. However, still the information is valuable because they also measured the smoke and e-cigarette content.

The results of the study basically showed that indoor air and normal exhaled breath contains more VOCs that the e-cigarette aerosol! I calculated 17 and 25 VOCs in the 2 e-cigarettes tested, 36 VOCs in indoor air and 42 in normal (non-smoking, non-vaping) exhaled breath. Tobacco cigarette smoke contained 86 VOCs, and exhaled breath after smoking similarly contained a large number of VOCs. As I said, not all VOCs are toxic but, interestingly, there were cases of toxic compounds present in the exhaled breath but not in the e-cigarette aerosol. For example, isoprene, which is listed as a carcinogenic compound in California Proposition 65 (I hope the CEH is reading this comment), is present ONLY in exhaled breath (even in normal exhaled breath), but not in e-cigarette aerosol.

The study did find nicotine in the exhaled breath after taking e-cigarette puffs, which is expected and compatible with findings from other studies. I have already presented in a previous comment that the amount of nicotine in the environment is so low that it does not have any effect (not even a biological effect, let alone an adverse effect) on those environmentally-exposed.

The study adds to a previous publication finding no carbonyls (aldehydes) exhaled after taking e-cigarette puffs. Moreover, it shows the absence of several toxic compounds not only in exhaled breath but also in the aerosol, which is relevant to the safety of e-cigarettes compared to the huge emissions in tobacco cigarette smoke. Below is a table from the study, showing selected VOCs (nd = not detected).

table3

 

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Friday, July 5th, 2019 at 11:15pm
@eaze Vaping is indeed the future.
Smoke has carbon, and is responsible for most lung problems resulting from combustion.
I suggest investing in a GOOD herb vape, at least $100-200 vape.
The others simply combust the herbs.
So many ppl dislike vaping bcuz they tried a bad device.
Friday, July 5th, 2019 at 3:44pm
@Kelpalots @DJColonelCorn A meta-study (I think around 2012) estimated that at the time ~17,000 people/year (in the US) died from complications arising out of internal gastrointestinal bleeding events thought to have been caused by NSAIDs.
(Thanks to Lightning on Disqus for this)
Yes, @Kelpalots, they do
Tuesday, July 2nd, 2019 at 6:11am
@KnowNicotine Vaping, whether done by a teen human or adult, has been shown to be practically harmless. While crying "Save The Children" they banned e-cigs, but not tobacco, in San Francisco recently. Saving the teens from the awful vape. Yeah. They also claim adults do not like flavors. Sure.
Tuesday, July 2nd, 2019 at 6:07am
@KnowNicotine Not happy with this teaser.
It's about, and labelled as, the "teen vaping 'epidemic'".
I'd rather my teen vape than smoke and get disease.
This is not why I donated. This 'teen epidemic' is their excuse to ban vaping.
"Save The Children!" they cry. When it's really about taxes.
Sunday, June 30th, 2019 at 6:30pm
"and from online retail..." .. how, exactly, well the enforce THIS I wonder....
Sunday, June 30th, 2019 at 12:38am
@Kpascuch My old home town has a lot to learn.
First came the flavor ban, now an outright ban on all e-cigs.
I can't believe at this stage of the game we're going backwards.
After all the progress we've made.
My DOCTOR even, has finally decided she approves of VAPING as she can see results https://t.co/OUcWPEelfn
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Sunday, June 30th, 2019 at 12:32am
@Kpascuch Sad.
I was just in Oakland, California.
They couldn't sell me vape liquid.
Of course, the tobacco was readily available.
As an ex-smoker I find that insulting. https://t.co/UAvfpOmJYO
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Thursday, May 23rd, 2019 at 7:56am
@KnowNicotine @Biebert @ThirdLineFilms @JenniBiebertMKE @JimiJakeShaw uh.... all of California isn't like what you saw... next time, come up North and see the redwoods !
All the best, Aaron. <3

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