Tuesday, March 03, 2015

Study Finds Almost No Hazardous Chemicals in Aerosol of Blu or Sky-Cig E-Cigarettes

A study published in journal Regulatory Toxicology and Pharmacology reports that the two brands of electronic cigarettes tested - Blu and Sky Cigs - contain levels of hazardous chemicals that are almost all indistinguishable from levels in ambient air. The few chemicals that were detected were present at levels between 50 and 900 times lower than that in cigarette smoke.

The study highlights were as follows:
  • "The e-cigarettes contained and delivered mostly glycerin and/or PG and water.
  • Aerosol nicotine content was 85% lower than the cigarette smoke nicotine.
  • The levels of HPHCs in aerosol were consistent with the air blanks.
  • Mainstream cigarette smoke HPHCs (∼3000 μg/puff) were 1500 times higher than e-cigarette HPHCs.
  • No significant contribution of tested HPHC classes was found for the e-cigarettes."
The authors conclude that: "The deliveries of HPHCs tested for these e-cigarette products were similar to the study air blanks rather than to deliveries from conventional cigarettes; no significant contribution of cigarette smoke HPHCs from any of the compound classes tested was found for the e-cigarettes. Thus, the results of this study support previous researchers’ discussion of e-cigarette products’ potential for reduced exposure compared to cigarette smoke."

The Rest of the Story

This study adds to the abundant and growing body of evidence that electronic cigarettes are orders of magnitude safer than tobacco cigarettes and suggests that brands of e-cigarettes that do not overheat the e-liquid may be associated with very minor absolute health risks.

This should put an end to the assertions of many e-cigarette opponents that electronic cigarettes are not any safer than tobacco cigarettes. It exposes those public statements as being lies.

This research also demonstrates how misguided the FDA is in its scientific judgment. Despite all of the evidence, with numerous studies demonstrating results similar to those above, with studies showing rapid clinical improvement in smokers who switch to e-cigarettes, and with studies showing that the acute cardiovascular and pulmonary effects of smoking due not occur with vaping, the FDA is not sure that smoking is not any more hazardous than vaping.

In the deeming regulation proposal, the FDA stated: "Many consumers believe that e-cigarettes are "safe" tobacco products or are "safer" than cigarettes. FDA has not made such a determination and conclusive research is not available." Clearly, the FDA does not believe that there is sufficient evidence at the present time to conclude that cigarette smoking is any more hazardous than vaping. 

Furthermore, one of the problems noted in the deeming regulations was the fact that: "The vast majority of the respondents who were aware of these products indicated that they believed e-cigarettes were less harmful than traditional cigarettes...". Once again, the FDA is stating that smoking may not be any more hazardous than vaping.

Combined with the existing body of scientific evidence, this study blows out of the water the argument of e-cigarette opponents that we have no idea how hazardous vaping is and that we can't be sure that vaping is significantly safer than smoking.

Nevertheless, I'm sure electronic cigarette opponents will continue to make these assertions because they are being primarily motivated by ideology and not by science.

1 comment:

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