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Funding: This work was supported by grants from the Tobacco-Related Disease Research Program (TRDRP) to PT, a Cornelius Hopper Award to MW, a MARC National Institutes of Health (NIH) fellowship to AV, and a TRDRP Postdoctoral Fellowship to SL. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript

Have look at this from the UKV forum and draw your own conclusions, it would be interesting to delve a little deeper to find out who funded it






Here's the abstract, and you can read the whole article online at www.plosone.org/article/info:doi/...ne.0057987

Background

Electronic cigarettes (EC) deliver aerosol by heating fluid containing nicotine. Cartomizer EC combine the fluid chamber and heating element in a single unit. Because EC do not burn tobacco, they may be safer than conventional cigarettes. Their use is rapidly increasing worldwide with little prior testing of their aerosol.

Objectives

We tested the hypothesis that EC aerosol contains metals derived from various components in EC.

Methods

Cartomizer contents and aerosols were analyzed using light and electron microscopy, cytotoxicity testing, x-ray microanalysis, particle counting, and inductively coupled plasma optical emission spectrometry.

Results

The filament, a nickel-chromium wire, was coupled to a thicker copper wire coated with silver. The silver coating was sometimes missing. Four tin solder joints attached the wires to each other and coupled the copper/silver wire to the air tube and mouthpiece. All cartomizers had evidence of use before packaging (burn spots on the fibers and electrophoretic movement of fluid in the fibers). Fibers in two cartomizers had green deposits that contained copper. Centrifugation of the fibers produced large pellets containing tin. Tin particles and tin whiskers were identified in cartridge fluid and outer fibers. Cartomizer fluid with tin particles was cytotoxic in assays using human pulmonary fibroblasts. The aerosol contained particles >1 µm comprised of tin, silver, iron, nickel, aluminum, and silicate and nanoparticles (<100 nm) of tin, chromium and nickel. The concentrations of nine of eleven elements in EC aerosol were higher than or equal to the corresponding concentrations in conventional cigarette smoke. Many of the elements identified in EC aerosol are known to cause respiratory distress and disease.

Conclusions

The presence of metal and silicate particles in cartomizer aerosol demonstrates the need for improved quality control in EC design and manufacture and studies on how EC aerosol impacts the health of users and bystanders.

I must admit I like the smell of someone smoking,it doesn't bother me at all. The unpleasant smell comes from the ashtray full of dog ends that is left to fester.

Someone needs to tell her that one of the leading licenced NRT products is bubblegum

OK Rosco, Spinner V Vamo, how would you compare them?

does your company pay for parking?

I thought this was going to be about those mucky mags you have in your cab Baz