Researchers Found Heavy Metals in Vaping Devices

A study analyzed fourth-generation vaping devices for the presence of lead, zinc, copper, nickel, and aluminum.

Updated on Sept. 22, 2026 in Environmental

Isometric editorial illustration of disassembled metal heating coils and components from a vaping device, colored in teal and oxblood. — Researchers at the Illinois Sustainable Technology Center identified lead, zinc, and other heavy metals within the liquid and hardware of fourth-generation vaping devices. AI Illustration. Upload story photo >

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Researchers at the Illinois Sustainable Technology Center detected heavy metals within the liquid of both new and discarded fourth-generation vaping devices. The findings revealed higher concentrations of these metals in cheaper brands.

Why it matters

The presence of heavy metals like lead poses significant health risks because bioaccumulation can damage critical organs including the heart, liver, kidneys, skin, and brain. Furthermore, improper disposal of these devices creates environmental hazards, contributing to waste management issues.

Researchers analyzed liquid solutions and structural components such as solder joints to identify the source of contamination. Future research is expected to further investigate the origins of these metals.

The players

Illinois Sustainable Technology Center

This research institution operates within the University of Illinois system to study sustainable practices and environmental impacts.

The details

The study confirmed that lead was present in the liquid of brand-new devices and traced its source to structural components like solder joints. Beyond human health impacts, the presence of these chemicals is linked to the death of wild birds.

Last year, vaping device disposal caused record high numbers of fires at garbage removal sites in the United Kingdom.
Earlier this year, researchers co-authored the study on heavy metals in vapes.

Deeper Dive

The study on vaping toxicity clarifies the environmental dangers highlighted by the record high number of fires at garbage removal sites reported in the United Kingdom last year. This research bridges the gap between chemical device analysis and observed waste management hazards.

Consumers should be aware that lower-cost vaping devices may contain higher levels of toxic metals, posing potential health risks to the heart, liver, and brain. The environmental impact also suggests a need for more careful disposal to prevent fires and wildlife harm.

The takeaway

Users of electronic cigarettes should consider the hidden health risks associated with the chemical components found in vaping liquid. Proper recycling protocols are essential to mitigate the dual threats of organ toxicity and the environmental danger posed by discarded devices.