Comparison of select analytes in aerosol from e-cigarettes with smoke from conventional cigarettes and with ambient air

Introduction:
This text is a comparison of the chemical composition and yields of harmful and potentially harmful constituents (hPhCs) in the aerosol produced by electronic cigarettes (e-cigarettes) and conventional cigarettes. The study also includes a comparison with ambient air. The text discusses the significance of these findings in the context of e-cigarettes' potential for reduced exposure to harmful chemicals compared to conventional cigarettes.

Key Points:

* The study tested three blu eCigs products and two SKYCIG products, and compared them with Marlboro Gold Box (US) and Lambert & Butler Original and Menthol products (UK) for conventional cigarette comparisons.
* The e-liquids tested contained humectants, glycerin and/or propylene glycol, water, nicotine, and flavoring. The aerosol collected mass (aCM) of the e-cigarette samples was similar in composition to the e-liquids.
* aerosol nicotine for the e-cigarette samples was 85% lower than nicotine yield for the conventional cigarettes.
* analysis of the smoke from conventional cigarettes showed that the mainstream cigarette smoke delivered approximately 1500 times more hPhCs tested when compared to e-cigarette aerosol or to puffing room air.
* The deliveries of hPhCs tested for these e-cigarette products were similar to the study air blanks rather than to deliveries from conventional cigarettes.
* The results of this study support previous researchers' discussion of e-cigarette products' potential for reduced exposure compared to cigarette smoke.

Main Message:
The main message of this text is that e-cigarettes have the potential to significantly reduce exposure to harmful chemicals compared to conventional cigarettes. The study found that e-cigarette aerosol contained significantly lower levels of hPhCs compared to conventional cigarette smoke. The results suggest that e-cigarettes may be a less harmful alternative to conventional cigarettes, which is an important consideration in the context of public health. however, further research is needed to fully understand the long-term health effects of e-cigarette use.

Tayyarah, Rana, and Gerald a. Long. “Comparison of Select analytes in aerosol from E-Cigarettes with Smoke from Conventional Cigarettes and with ambient air.” Regulatory Toxicology and Pharmacology 70, no. 3 (December 2014): 704–10. https://doi.org/10.1016/j.yrtph.2014.10.010.