Very few studies have been conducted on the chemical contents of e-cigarettes and vapor, and these studies tested a limited number of products. Therefore, the chemicals listed in Table 1 do not represent all chemicals contained in e-cigarettes, and concentrations of the chemicals in the cartridges and vapor are not presented.
TRANSLATION: Gee, look at this awful list of ingredients, and be "vewy vewy afwaid" because there might even be more. We are ignoring the first rule of toxicology, and withholding the actual concentrations of the chemicals to make it appear that everything on the list is extremely harmful.
Absurdly, the list starts off with the weight loss drug, Rimonabant, and the erectile dysfunction medication, Amino-tadalafil (......). Perhaps this was intended to give the impression that these drugs are a regular ingredient in most, if not all, e-cigarettes. Some two years ago, ECF members laughed at the web site selling these products. Apparently the FDA monitors this forum, because the next thing we knew, that site was among the five that received warning letters from the FDA. The site hasn't changed one bit--probably because the FDA can't touch them over in China. The FDA does, however, insult the intelligence of US e-cigarette users to imply that we would be flocking to that site to purchase these stupid products. And Riker et al. perpetuate the insult.
The list in Table 1 also includes four chemicals reported by Dr. Murray Laugesen of Health New Zealand. There is a footnote reference "a" next to "(Health New Zealand)" and the citation reads, "a. Industry supported."
Make up your minds, ladies. Were the HNZ findings valid, or do you believe Dr. Laugesen accepted a bribe to falsify the report? If the latter, then the chemicals HNZ reported don't belong in your list. But we can figure out easily why you decided to include them: So that under "Characteristics" you could include the inflammatory description "Many volatile organic compounds can cause health effects."
If Riker et al. wants us to believe that they are providing an objective evaluation of the products, then the following text from the HNZ report should have been included as well: "Several toxicants in headspace of the Ruyan® e-cigarette cartridge have, on some tests, been found, specifically acrolein and acetaldehyde, at very low levels,
and at levels below those determined to be harmful, and well below the minimum risk levels accepted by the US Public Health Service and OSHA."
Speaking of non-harmful levels, the comment under "Characteristics" next to the names of the four types of Tobacco-specific Nitrosamines in Table 1 reads, "Tobacco-specific nitrosamines are strong carcinogens present in cigarette smoke" Since Laugesen is cited as one of the references for finding TSNAs, how did the authors happen to miss the Note in the HNA report that reads, "Comment. 1) Tobacco-specific nitrosamines (TSNAs) were found, equal to 8 ng, in the 1g of liquid of the 16 mg cartridge. This amount is extremely small, equal for example, to the amount reported to be present in a nicotine medicinal patch."
An examination of the list of references reveals more about the intentions of the writers.
Included, the press release:
FDA and public health experts warn about electronic cigarettes. U.S. Food and Drug Association Web site. Available at:
FDA and Public Health Experts Warn About Electronic Cigarettes. Accessed October 19, 2010.
Missing, the Lab report:
U.S. Food and Drug Administration. Final Report "Evaluation of e-cigarettes".
http://www.fda.gov/downloads/Drugs/ScienceResearch/UCM173250.pdf
Included: Several opinion pieces, without making clear that negative statements repeated in the article were conjecture, rather than facts based on research.
Flouris AD, Oikonomou DN. Electronic cigarettes: miracle or menace. Personal view. BMJ 2010;340:215.
Cobb NK, Abrams DB. E-cigarette or drug-delivery device? Regulating novel nicotine products. N Engl J Med 011;365(3):1935.
Henningfield JE, Zaatari GS. Electronic nicotine delivery systems: Emerging science foundation for policy. Tob Control 2010;19(2):8990.
E-cigarettes banned on domestic flights, reports ASH. Action on Smoking and Health (ASH) Web site. Available at:
E-Cigarettes Banned on Domestic Flights, Reports ASH | PRLog.
Missing, some important clinical research reports:
Darredeau C, Campbell M, Temporale K, et al. Subjective and reinforcing effects of electronic cigarettes in male and female smokers. 12th annual meeting of the Society for Research on Nicotine and Tobacco Europe. Bath, UK, 2010.
https://secure2.symphonyem.co.uk/CMS/UserDocuments/899/Cathy Book1-121 .pdf
Miura K, Kikukawa Y, Nakao T, Tokai H, Izumi Y, Fujii H, Hojo, T. Safety Assessment of Electronic Cigarettes in Smokers. SEIKATSU EISEI (Journal of Urban Living and Health Association). Vol. 55 (2011) , No. 1 p.59-64.
SEIKATSUEISEI : Vol. 55 (2011) , No. 1 p.59-64
R Polosa, P Caponnetto, J B Morjaria, G Papale, D Campagna, C Russo: Effect of an Electronic Nicotine Delivery Device (e-Cigarette) on Smoking Reduction and Cessation: A Prospective 6-Month Pilot
Vansickel AR, Weaver MF, Eissenberg T. Clinical laboratory assessment of the abuse liability of an electronic cigarette. Addiction. 2012 Jan 9.
Clinical laboratory assessment of the abuse liabil... [Addiction. 2012] - PubMed - NCBI
Study. BMC Public Health 2011, 11:786.
http://www.biomedcentral.com/content/pdf/1471-2458-11-786.pdf
Also missing: Opinion pieces that are positive
Borland R. Electronic cigarettes as a method of tobacco control. BMJ. 2011 Sep 30;343:d6269.
Electronic cigarettes as a method of tobacco control | BMJ
Caponnetto P, Campagna D, Papale G, Russo C, Polosa R. The emerging phenomenon of electronic cigarettes. Expert Rev Respir Med. 2012 Feb;6(1):63-74.
The emerging phenomenon of electronic ... [Expert Rev Respir Med. 2012] - PubMed - NCBI
Foulds J, Veldheer S. Commentary on Etter & Bullen (2011): Could E-cigs become the ultimate nicotine maintenance device? Addiction, 106: 20292030.
Commentary on Etter & Bullen (2011): Could E-cigs become the ultimate nicotine maintenance device? - FOULDS - 2011 - Addiction - Wiley Online Library