i know im bringing up a thread that has long since dropped out of public view, but as a note on the ruyan article, it was financed by ruyan itself.
not that the findings are not promising, but the whole reason for independent research documentation is to avoid influence from benefactors. researchers will often skew results simply because they feel they owe something to the financier of their research. so i feel this research, though promising looking, should be taken with a grain of salt.
i would love to see an independent firm conduct a study on PG, VG, and efluid intake as a whole based on vaporization at temperatures relevant to the use. i have seen other articles referencing vaporization at 80 deg C. but from what i have seen, this has not happened, and wont happen without significant interest in the product.
the simple fact that i want to know is whether significant amounts of PG, VG or the other ingredients in e-liquid alter their chemical composition at the temperature of vaporization at the atomiser. or if they are not altered, if they are broken down quickly and whether they pose a threat to the body or its organs of operation.
as i would assume currently, the main ingredients apart from the nicotine, being VG or PG would not cause the body harm if chemical alterations do not occur. albeit, PG being a suspected toxicant and irritant if inhaled.