Refering to Titanium:
Has it been studied for inhalation? I don't know. Applying something to the skin, or eating it, is very different from inhaling. Diacetyl is harmless when ingested.
Titanium dioxide is present EVERYWHERE. It would be close minded to think you didn't inhale some of it. When you wash your newborn's clothes with hypoallergenic soap, you're in fact spreading TiO2 over it (Its used in white soap). When you dress your newborn, how many TiO2 particles end up in the air and how many are inhaled by the baby?
Of course the same applies to grade 1 titanium.
Yes but as far as I know, nickel oxide is far more nasty than titanium dioxide. I choose Ti any day.
Titanium Scares me.
For No Other Reason then the Swing Arm on a Bike I was riding Broke. And it was Made from 6AL4V.
But that is Another Story.
Being scared of the unknown is normal. Do you research and make your own conclusions.
Hi Katya !
I realize that I've linked you to a cosmetics website, but I think the studies mentioned and cited in the article are worth looking at. One of the studies mentioned ( Lee, Trochimowicz & Reinhardt, "Pulmonary Response of Rats Exposed to Titanium Dioxide by Inhalation for Two Years" (1985)) involved "rats chronically exposed to excessive dust loading". In contrast to the results shown in rats, the study by Warwhit (2004) involving mice and dogs showed no tumor expression (hence my joke better to be a mouse!). Reading further, disease was noted in some who handled TD on an industrial level. But that begs the question, are vapers anywhere near the equivalent to an 'industrial level' of exposure? What seems important in the long run is the particle size, then a safe level of exposure can be guestimated.
Let me clarify this: The disease that was noted, was in a patient working for 13 years in a TiO2 packing plant... HOWEVER, if you read the patients clinical background (yes, I did), you will find something curious...
he was also a daily 2 pack smoker for 40 years. That CERTAINLY had nothing to do with his lung cancer...
Please remember that these "Scientific Studies" are just like forums. You need to learn to separate the dirt from the gold. Just because the people signing these studies have a Phd or have been made by a pre-phd, doesn't make them right. My research field is Artificial Intelligence (nothing to do with metallurgy or chemistry) and you wouldn't believe the amount of crap I read every day.
Unless it's a article reviewed by peers, I take them as "fairly backed up opinions" rather than "truth".
My two cents
Tony
PS: Even some "reviewed by pairs" articles have been proved wrong later and were only "approved" because the author had a well respected background in the field and nobody "dared" defying the garbage he was publishing.
PS2: A few years ago, I trashed an article in a "blind review" and guess what... it was written by my superior (uppsssss). After finding out, I spoke to him and he replied: "Well, I was wondering when finally someone would find the flaws in my theory. Glad it was you, Tony"