🔗 E-cigarettes are still safer than smoking, scientists find | Society | The Guardian
"It became clear that it was not nicotine vaping that was implicated. Details were slow to emerge because the substances involved were in fact cartridges containing cannabis (primarily tetrahydrocannabinol or THC). These were often obtained on the illicit market, and in some cases being used by children. This meant users were reluctant to admit what they had vaped.