2 Cigarette smoke (CS) contains over 5,000 harmful substances, 400 of which are scientifically proven carcinogens, such as formaldehyde, benzene and vinyl chloride, 3 with the latest research demonstrating that the poisonous chemicals contained in cigarettes reach every organ in the human body
But being around marijuana smoke for a long time in a small, closed space (like hours after using it) can cause THC levels to be measurable, especially on saliva tests
While tobacco companies have successfully delayed this diffusion by operating at the international level to prevent innovations in one country from spreading to others, since 2003, the public health community, which used to view health warning labels as a local issue, started viewing diffusion of health warning labels in a global context, a process encouraged by the World Health Organisation Framework Convention on Tobacco Control
Alternative forms of tobacco are often portrayed as less harmful than cigarettes, but this is not true
On the hard hand a pack contains 20 cigarettes
