Q: Will Vaping Inhale Heavy Metals?
A: The statement that the heavy metals in e-cigarettes exceed the standard mainly comes from a paper by Johns Hopkins University, as shown in the figure below.
But recently, a study published in the SCI journal “Inhalation Toxicology” strongly refuted this assertion.
Prof. Konstantinos Farsalinos from the University of Patras, Greece, and Prof. Brad Rodu, from the University of Louisville, USA, pored over the paper and found that the Johns Hopkins researchers had miscalculated the daily intake of vapers, and they concluded that The premise of excessive heavy metals is that vapers inhale e-cigarettes at least 24 hours a day – people breathe about 17,000 times a day, and according to a large number of surveys done by relevant agencies, each Vaper vapes e-cigarettes about 600 times a day on average.
So will these 600 mouthfuls of inhalation cause excessive heavy metal intake? The two professors used three internationally recognized heavy metal safety standards (PDE, MRL and REL) respectively to calculate the heavy metal content in electronic cigarettes and came to such a conclusion.
All the heavy metals contained in e-cigarettes: aluminum, chromium, cadmium, copper, lead, iron, nickel, etc., the conclusion is that even with the highest standard of heavy metal content in the Johns Hopkins paper, it is almost impossible Excessive heavy metal inhalation through e-cigarettes.
A vaper smokes 1.5 million grams of e-liquid every day to inhale aluminum that exceeds safe standards. Cadmium is 15,000 grams, copper is 588 grams, lead is 135 grams, and the lowest is nickel, which also absorbs 17 grams.
What is the concept of smoking 17 grams of e-liquid a day? Let’s take MOTI as an example. The amount of e-juice in a pod is 1.8 ml. We calculate the weight of glycerol, which has the largest specific gravity, and the weight of e-juice will not exceed 2.5 grams, which is equivalent to letting a vaper smoke 7 cigarettes a day.
I have been in contact with a lot of vapers, and it is rare to smoke 2-3 pods a day. Smoking 7 pods should be able to apply for the Guinness World Records.
So far, we can conclude that it is impossible to ingest excessive heavy metals through e-cigarettes, especially small cigarettes. Unless you are willing to do toxicology experiments on yourself, you can only inhale excessive nickel.
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