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Some Vapes Release More Lead than 20 Packs of Cigarettes: Study
- In 2025, University of California, Davis researchers published a study showing disposable e-cigarettes release more toxic metals than refillable vapes and traditional cigarettes.
- The investigation started after vaping tests revealed dangerously high lead, nickel, and antimony levels in disposable devices that surpass cancer and health risk limits.
- The study found metal concentrations increased with puffs and traced lead to leaching from leaded copper alloys in non-heating vape parts into e-liquids and smoke.
- One disposable e-cigarette emitted more lead in one day than nearly 20 packs of cigarettes, and devices varied widely in metal emissions raising risks of cancer and nerve damage.
- Researchers and the study's senior author Brett Poulin called for urgent regulation enforcement to reduce health risks, especially for youth amid rising disposable vape popularity and easy access.
37 Articles
37 Articles
Vapes Clouds Contain Absolutely Horrifying Chemicals, Scientists Find
If you vape — and especially if it's because you think it's a less harmful alternative to smoking — then we have some really bad news. New research from the University of California, Davis, shows that some popular disposable vapes contain levels of toxic metals so appalling that they exceed traditional cigarettes. And we don't just mean a single cig — we're talking packs of them. The work, published as a study in the journal ACS Central Science,…
New Study Shows Disposable Vapes Are Worse Than Cigarettes
They may be smaller than their refillable counterparts, but some disposable e-cigarettes actually emit more toxic metals than older vapes and traditional cigarettes, according to a new study from the University of California, Davis, published in the journal ACS Central Science. Disposable e-cigarettes are the newest nicotine delivery systems on the market, and the most popular — particularly among adolescents, the Centers for Disease Control …
Disposable Vapes Release More Toxic Metals Than Traditional Cigarettes: UC Davis Study
The rise in popularity of disposable vapes among teens and young adults comes with potential health risks that are still being researched. A study published on June 25 from the University of California–Davis found that disposable vapes from three of the most popular brands on the market—Esco Bar, Flum, and ELF Bar—release more toxic metals than other kinds of e-cigarettes and, in some cases, traditional cigarettes. Researchers found “hazardous l…
Disposable e-cigarettes more toxic than traditional cigarettes
They may look like travel shampoo bottles and smell like bubblegum, but after a few hundred puffs, some disposable, electronic cigarettes and vape pods release higher amounts of toxic metals than older e-cigarettes and traditional cigarettes, according to a study from UC Davis. For example, one of the disposable e-cigarettes studied released more lead during a day’s use than nearly 20 packs of traditional cigarettes. The study, published today i…
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