Are E-Cigarettes Safe? - Health Hazards of Electronic Cigarettes
Health Hazards of Electronic Cigarettes
Although e-cigarettes don't expose users and others to smoke, they may contain harmful chemicals.
Pete Ridge, Getty ImagesAds
3 Herbs that Beat Anxietywww.a2xanxiety.comDoctors Reveal 1 Weird Compound to Calm Anxiety that May Surprise You
Kreditkort utan årsavgiftbanknorwegian.se/KreditkortFå 300 SEK til at flyga med. Upp till 100 000 kr i kredit.
Bible Science Experimentswww.teachsundayschool.comTeach Biblical Truths with Science 25 Fun Bible Science Experiments.
Reaxys Corporate Solutionwww.elsevier.comMake your drug research easier with Reaxys Medicinal Chemistry.
Electronic cigarettes (e-cigarettes or e-cigs) are battery-powered devices that simulate tobacco smoking without the smoke. The smoker can control the amount of nicotine that is delivered without exposing others to the risks of secondhand smoke. Except for the toxicity of nicotine, you'd think e-cigarettes should be safer than tobacco smoking, right? Recent research suggests e-cigarettes may carry health risks of their own.
E-cigarettes contain some of the same cancer-causing agents found in tobacco, plus additional contaminants not found in regular cigarettes. Additionally, researchers have found that the amount of nicotine delivered by e-cigs may be quite different from the labelled value, such that a user might receive a much higher or lower dose than anticipated. Some electronic cigarettes intended to deliver no nicotine actually did produce small amounts.
E-Cigarettes Contain Some Contaminants Found in Tobacco
Early studies indicated e-cigarettes contained some of the undesirable chemicals found in tobacco. For example, a 2009 analysis of e-cigarette cartridges by the US Food and Drug Administration detected tobacco-specific nitrosamines (TSNAs), which are known carcinogens. The four primary TSNAs detected were N-nitrosonicotine (NNN), N-nitrosoanabasine (NAB), N-ntrosoanatabine (NAT), and 4-(methylntrisoamino)-1-(3-pyridyl)-1-butanone (NNK).
Toxicologist Maciej L. Goniewicz and colleagues at the Roswell Park Cancer Institute in Buffalo found six toxic substances in e-cigarettes using a robotic smoking machine at levels 9 to 450 times greater than found in regular cigarette smoke, including the toxic carbonyl compounds formaldehyde, acetaldehdye, and acrolein.
E-Cigarettes Contain Additional Contaminants
The levels of glycerol and propylene glycol vaporized in e-cigarettes generally is recognized as safe, but there are other chemicals delivered by the products.
Goniewicz's team detected cadmium, lead, and nickel in e-cigarette vapor. The metals are not found in tobacco cigarettes. Another research team observed actual metal particles in electronic cigarette vapor. The March 10, 2014 volume of Chemical and Engineering News describes Goniewicz's findings in greater detail.
No Regulation
The biggest problem is that the ingredients in e-cigarettes are not regulated or monitored as closely as other drugs. While one brand may be free of certain contaminants, it might be found in another product. The dose of the contaminants also depends on how the user vapes, since frequent short puffs draw a different chemical composition than deep pulls. While it is clear bystanders are exposed to nicotine from e-cigarettes, it is uncertain how well the other contaminants travel and what risks are associated with secondhand vapor. The reader is advised to review the peer-reviewed studies to see which contaminants have been detected in which products.
References
- FDA (4 May 2009). "Evaluation of e-cigarettes". Food and Drug Administration (US) -center for drug evaluation and research. Retrieved 17 March 2014.
- Palmer, Roxanne (8 September 2013). "E-Cigarettes As Effective As Nicotine Patches in Helping Smokers Quit: Study" . International Business Times. Retrieved 17 March 2014.
- Lockwood, Deidre (10 March 2014), "Controversy Clouds E-Cigarettes," Chemical and Engineering News, Vol. 92, No. 10, pp. 32-33.
| Reply via web post | Reply to sender | Reply to group | Start a New Topic | Messages in this topic (1) |
to Subscribe via email :
batavia-news-subscribe@yahoogroups.com
----------------------------------------
VISIT Batavia News Blog
http://batavia-news-networks.blogspot.com/
----------------------------
You could be Earning Instant Cash Deposits
in the Next 30 Minutes
No harm to try - Please Click
http://tinyurl.com/bimagroup
--------------
No comments:
Post a Comment