I emailed that professor directly .. who sent me data and even tho the levels were high they were reduced massively by mixing it with VG/PG it's all nonsense...
here the reply email I received.
Hello James,
Thank you for your interest in our work. I attach the paper.
Concentrations that we measured are shown in Fig.2 and in the supplemental
information. I have not followed all of the media coverage, but the few
publications I have seen reflect our findings fairly adequately (though
Daily Mail title is wrong - flavoring does not contain cancer-causing
Chemicals, they form them when used in e-cigs). Aldehyde levels we
measured are very high in pure flavoring's, even according to industrial safety standards.
Aldehyde levels in the devices we tested were comparable to those in
conventional cigarettes. However, e-cigs do not produce tar, for example,
so they are significantly cleaner in that respect. I checked some comments
to the articles and was a bit surprised that some people think we were
funded by the tobacco industry, which is entirely untrue. It was a small,
internally funded study. None of us, nor the institute had any connections
to the industry. I am not against e-cigs, but I think people need to know
what is in the vapor. Our goal was to draw attention to the problem. Many factors affect
aldehyde emissions, such as e-cig power,
construction, etc. I am sure there should be a way to make e-cigs safer.
For example, diluting flavors with PG/VG seems to reduce aldehyde
emissions exponentially.
Hope this helps.
Cheers,
Andrey
