General Discussion
In reply to the discussion: Do smoking bans apply to e-cigarettes? [View all]beevul
(12,194 posts)For those that might be alarmed by what you write, I post this:
"Last but not least, it should be mentioned that traces of formaldehyde have also been discovered as a product of human metabolic reactions. Lindinger et al.(103) have shown that formaldehyde is a component of exhaled human breath. Wehinger et al.(104) have identified increased levels of formaldehyde in exhaled breath samples from primary lung cancer patients. Moser et al.(105) report formaldehyde concentrations in the deep lung portion of human breath up to 72.7 ppbv with a median of 4.3 ppbv. Kushch et al.(106) have examined trace compounds in the exhaled breath of 81 smokers, 210 nonsmokers, and 79 ex-smokers. For formaldehyde, median values of about 10 ppb were measured and no statistically significant difference between smokers and nonsmokers was observed."
http://www.ncbi.nlm.nih.gov/pmc/articles/pmc2855181/
I suggest you look at levels of formaldehyde that the every day person encounters every day, doing things such as cooking dinner on a gas range, or contained in a new car, before you post any more in this "direction".
As to the study referred to in your link:
Results: We found that the e-cigarette vapours contained some toxic substances. The levels of the toxicants were 9450 times lower than in cigarette smoke and were, in many cases, comparable with trace amounts found in the reference product.
Conclusions: Our findings are consistent with the idea that substituting tobacco cigarettes with e-cigarettes may substantially reduce exposure to selected tobacco-specific toxicants. E-cigarettes as a harm reduction strategy among smokers unwilling to quit, warrants further study.
http://tobaccocontrol.bmj.com/content/early/2013/03/05/tobaccocontrol-2012-050859.abstract