Those draws have made smoking e-cigarettes and other vaping devices attractive for young people who are turned off by tobacco, as well as for existing smokers looking for a way to keep the habit but ditch the health issues. The average levels of nickel, chromium, and manganese were also in an unsafe margin.
It has come to light that e-cigarette vapours contain a significant amount of toxic metals, which can be unsafe.
Strangely enough, the metal concentrations in the aerosols studied were higher for e-cigarette devices that had their coils changed frequently, leading to the conclusion that, the newer the coil, the more it potentially leeched metals.More news: Child injured by dog during boarding for Southwest flight
But a new study has discovered toxic levels of heavy metals in e-cigarette aerosols, once again raising doubts over just how safe vaping really is.
The study is rather small, evaluating devices in a random sample of 56 users, it did reveal some interesting and rather significant numbers.
In typical e-cigarettes, an electric current produced by a battery passes through a metal coil, which then heats nicotine-based liquids to create an aerosol, Forbes said. Chronic exposure to such metals by inhalation has been linked to ailments and diseases ranging from cancer to lung and heart problems.
Vaping is now popular smoke-is popular especially among as it provides a nicotine "hit" and the look and feel of tobacco smoking. Recent studies found that e-cigarette liquids contain flavorings and other chemicals that harm cells in standard toxicology tests.More news: OH high school, district close because of threats
Although the Food and Drug Administration has the authority to regulate e-cigarettes, it is considering its options. It is suspected that blame lies with e-cigarette heating coils that are contaminating the aerosols generated by the device. The median lead concentration in the aerosols, for example, was about 15 µg/kg, or more than 25 times greater than the median level in the refill dispensers. Nickel, chromium and manganese approached or exceeded safe limits, the researchers report.
E-cigarette heating coils typically are made of nickel, chromium and a few other elements, making them the most obvious sources of metal contamination, although the source of the lead remains a mystery. Precisely how metals get from the coils into e-liquid is another mystery.
"We don't know yet whether metals are chemically leaching from the coil or vaporizing when it's heated", Rule said.
The actual health effects of these exposure levels are still unknown and the researchers are planning further research into the impacts on humans, but numerous median aerosol concentrations identified in the study did approach or exceed the safe limits defined by the Environmental Protection Agency.More news: Madhya Pradesh: Jilted man attacks girl with sword, severs her head
The study appears online in the journal Environmental Health Perspectives.