Safety debate re-ignited after one brand was found to contain up to 10 times more formaldehyde than conventional cigarettesJapanese officials will evaluate the possible impact on health of smoking e-cigarettes after researchers found that devices bought in Japan contain up to 10 times more formaldehyde - a cancer-causing substance - than conventional cigarettes.
The findings,announced this week, gain re-ignited the debate over whether e-cigarettes are a risk-free alternative to tobacco smoking, and as more young people take up the vaping habit.
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Source: theguardian.com