New studies find carcinogens in vg and pg at high temps, even in tootle puffers

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zoiDman

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The dose of Potassium Cyanide that would be fatal in 50% of those ingesting it is ~5 mg/kg. For an average 70 kg person that's 350 mg. Not a lot but not an "OMG I just swallowed 1 mg of cyanide!".

...

I wonder if the Same Mindset could/should be used when people consider that they May be inhaling Aldehydes?
 

Eskie

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I wonder if the Same Mindset could/should be used when people consider that they May be inhaling Aldehydes?

Meh, different toxicities. One is the pretty dramatic collapse, seize and die, and the other is the whole slow chronic illness thing. Maybe instead of cyanide, little cumulative doses of arsenic would be a better comparison. Doesn't get you now, it's the down the road stuff.

Low level exposure to formaldehyde already occurs in the workplace. The accepted exposure levels are way lower now than they used to be, but it's not like it doesn't occur outside of vaping or smoking.
 

Katya

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Ah, for clarification, PLoS One is peer reviewed even though it is published as an online open source journal.

Oops--sorry. Edited my OP. I went to the source and indeed it says peer reviewed. :blush:

Also found this in the Acknowledgements:

"We would also like to thank the California tobacco Control Program for their advice and consultation on this project." ;)
 

zoiDman

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Meh, different toxicities. One is the pretty dramatic collapse, seize and die, and the other is the whole slow chronic illness thing. Maybe instead of cyanide, little cumulative doses of arsenic would be a better comparison. Doesn't get you now, it's the down the road stuff.

Low level exposure to formaldehyde already occurs in the workplace. The accepted exposure levels are way lower now than they used to be, but it's not like it doesn't occur outside of vaping or smoking.

Wasn't so much going for the collapse, seize and die thing.

More along the lines of If something is coming out of my Drip Tip that is Unwanted, at what Exposure does it become Harmful? And what are Long Term Effects of such Harm?

Lots of Talk in this thread about Whether of Not things are being Produced. And Tons of Talk about the Mechanics of why they Should or Shouldn't.

But Not Much talk about what the Actual Risk may be by Inhaling Something at Some Level.
 

Eskie

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Oops--sorry. Edited my OP. I went to the source and indeed it says peer reviewed. :blush:

Also found this in the Acknowledgements:

"We would also like to thank the California Tobacco Control Program for their advice and consultation on this project." ;)

Well, the 2 charts I posted about smokers doing better vaping than smoking came from the Truth Initiative, which is an established Antz foundation.:p

Yes, we always need to be aware of any potential conflicts when evaluating information and their sources.
 

USMCotaku

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Then that's pretty good. Was that on a wicked coil that was wet, or just bare wire? We know the TCR of a metal can be a reliable way to measure temp, but I'm not aware of someone demonstrating that when the wire is actually being used for something other than temp measurement. Does it hold up as valid as liquid evaporates off and "cools" that same wire?
It was bare coil, just testing at various settings (my probe is basically a thermocoupler at the end of a line, but my line is too large to use on a wicked and capped atty). The thing is, if TC is working properly, then it should be the same wicked and wet or not...it is the temp of the coil that dictates that coils resistance. We know that the tcr of those select wire types we use to be pretty dang accurate, so how that wire is heated and cooled really shouldn't matter.

A temp probe at the center of a wet wick would be interesting to know...just how much of the heat is transferred into the vape, vs. how much reaches the center of the wick.
 

Eskie

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zoiDman

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sofarsogood

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"The temperature in which White Cloud Flings and cartridges vaporize the liquid is between 350 and 390 degrees." At what temperature does the e-liquid vaporize?

How do they know that? But suppose it's correct. I can produce vapor at lower coil temps than that. The liquid will stay in contact with the coil until it's warm enough to vaporize? So if there's too much cooling the liquid vaporizes slowly or not at all. We tend to restrict the air when the heat is low, to give the liquid time to absorb heat.
 

zoiDman

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It is something to think about.

It just seems like if someone tells you something is Harmful, then the First 2 Thing a Person would ask would be...

"OK. At what Levels is it Harmful?"

and then...

"What is the Harm at Level X?"

Don't get me Wrong. Not advocating that Inhaling something like Formaldehyde is OK. Or that if something can be Avoided, then that shouldn't be Considered.

I'm just a Numbers Guy. And like to have Numbers that I can put next to Things.

 

Eskie

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It just seems like if someone tells you something is Harmful, then the First 2 Thing a Person would ask would be...

"OK. At what Levels is it Harmful?"

and then...

"What is the Harm at Level X?"

Don't get me Wrong. Not advocating that Inhaling something like Formaldehyde is OK. Or that if something can be Avoided, then that shouldn't be Considered.

I'm just a Numbers Guy. And like to have Numbers that I can put next to Things.

The reason that doesn't work is folks have no real clue about the principle of relative risk. It's either all safe or all terrible. Anything in between requires thinking, and we know what happens when that's a requirement.
 

Katya

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Not disagreeing with Dr Farsalinos in any way, but it's dangerous for us to see him as the absolute authority on any- and everything vaping-related. Seemingly for no other reason that we like to agree with him. And he's a cardiologist, not an expert on everything.

Sent from my K6000 Pro using Tapatalk

Absolutely right. And I assure you that nobody here "sees him as the absolute authority on any- and everything vaping-related." Far from it. We are a skeptical and cynical bunch and we always argue--just in case.

When Dr. F decided to issue his, somewhat misguided, warning against dry burning coils because "you are basically destroying the bonds between the metal molecules," he met immediately with universal criticism from vapers; some polite, some not so polite. This is from an old thread, so quoting is disabled--click on the links to my favorite posts.

The end of microcoils?

The end of microcoils?

The end of microcoils?

The end of microcoils?

Those are the polite ones. ;)

Sorry, @Lessifer :lol: I'm just feeling nostalgic.
 
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mikepetro

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So is the rcp wrong to say vaping is 95% safer than smoking. ?
I dont think Wang and the RCP are mutually exclusive. I believe it is possible they both could be right.

Wang didnt say vaping was bad, they just showed nasties at high temperatures.
 

USMCotaku

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So is the rcp wrong to say vaping is 95% safer than smoking. ?
No.
As I stated earlier, this test found (? still some unanswered questions, based on HOW the test was run) two possibly harmful compounds. If those two compounds were even at levels of or exceeding cigarettes.......there is still over 1000 OTHER harmful things in cigarette smoke we aren't getting.
 

zoiDman

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So is the rcp wrong to say vaping is 95% safer than smoking. ?

I don't think they are Wrong. On the Population Level.

But the Population Level is comprised of Averages. And in some study results, Weighted Averages. The Population Level makes No Guarantees about the Individual Statistic.
 
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