Ever since vaping overtook traditional smoking as the culturally preferred method of inhaling nicotine and marijuana, vaping proponents have vigorously challenged the claims of various health risks associated with e-cigarettes. In particular, critics have noted — and advocates have struggled to defend — the rising victim tally for EVALI, a disease with an acronym that speaks for itself: "e-cigarette or vaping product use-associated lung injury." The challenge, for health experts, has been acquiring precise biochemical information about the effect of vaping on the body.
Now, a new study by Portland State University's Robert Strongin, doctoral student Kaelas Munger, and Robert Jensen reveals that when cannabinoid acetates in marijuana vaping products are heated under vaping conditions, they create a toxic gas called ketene.
In their study, the researchers studied how much ketene was produced from a single puff of vaping products. They focused on certain cannabinoid acetates like the Delta 8 THC acetate, which is not regulated by the FDA and is believed to make the high from vaping more potent. They discovered that ketene is formed at lower temperature settings than previously believed — and that it accumulated at levels dangerous to individual health.
And as Munger explained in a university press statement, people who use these products likely smoke them for more than a single puff.
"The thing we're most concerned about is prolonged exposure — we don't know what that is," Munger explained. "That's why papers like ours are needed. Otherwise people would be exposed to this really toxic substance and it's really impossible to look for the evidence."
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