cpcp68, this is from the paper:
This work was supported by the University
of California
tobacco-Related Diseases Research Program (Project
16RT-0158). Experimental work was carried out at LBNL under US Department
of Energy Contract DE-AC02-05CH11231. Laboratory resources at
University of California San Francisco were supported by the Flight Attendant
Medical Research Institute and by National Institutes of Health
Grant DA012393.
Realize that while funding is done by approving a particular project's proposal, papers are only published after a favorable peer-review process, and the reviewers are always anonymous...even the authors don't know how they are. Without seeing the reviewers' comments, which only the authors will see, we do not know what was considered positive or negative, nor will we.
BTW, that slight film of PG or VG
will evaporate given enough air flow or dryness of environment. The film on your windshield when it is very cold outside will likely be completely gone the next day. That is not the case with smoke tars. There is a huge difference between nic stuck in a tar matrix, and nic loosely bound to PG or VG which is continually in the process of evaporating, thus liberating the nic into the air. I simply do not see this as applicable to vaping, but then the amount of fundamental understanding of the inherent chemistry that is required means it could be applied to vaping anyway, by the media.
It is the relative amounts that the media chooses not to address in any of the vaping issues, because they know the general public has no feel for them, only fear of buzz words. And the way they would do it, even if a study doesn't address it outright, is to sort of innocently ask during the news spot:
"Hmmm, do you think, Beth, that this could mean those ecigs are not as safe as one might think?"
"Bill, that's a great question, and we just don't know, but the FDA
has said that the vapor
does contain cancer-causing nitrosamines."
And with that, the seed is planted. They didn't lie, they simply quoted previous distortions and influenced, and Joe Average now doesn't want to even think about ecigs.