Before you hit the Juul, read this: More than 80% of vaping products in a recent Harvard study showed fungal contamination. (WBUR)
Many e-cigarette products show signs of contamination by what could be called e-bugs.
David Christiani, a Harvard T.H. Chan School of Public Health professor, says that while the level of exposure is low, the research adds an additional"buyer beware" for users of e-cigarettes. Vaping has exploded among American teens to the point that the U.S. surgeon general"The production is not standardized," Christiani says,"and the contents can vary widely. And they can contain a number of agents that are toxic, that can be harmful to health, in addition to nicotine.
It should be clear that those are usually occupational settings at much higher levels than what we’re measuring here. But still, they are present. And we don’t know what long-term, repeated, cumulative use would mean for someone’s lungs from just e-cigarettes alone.These are low levels of exposure — lower than in tobacco products or traditional cigarettes and lower than in the occupational environment. So this is pretty low-level exposure, but it’s not trivial.
We actually don’t know. We’re not sure at which steps the contamination is taking place. The only thing we can say is that we looked at two different kinds of materials; one was cartridges and one was a free-flowing liquid. And the cartridges had a higher level of contamination than the free-flowing liquid did.
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