Marijuana Smoke

Protection from Harm

Smoke is smoke. When you burn something, it releases dangerous chemicals and marijuana is no different.  Secondhand marijuana smoke contains many of the same cancer-causing substances and toxic chemicals as secondhand tobacco smoke.  Some of the known carcinogens or toxins present in marijuana smoke include: acetaldehyde, ammonia, arsenic, benzene, cadmium, chromium, formaldehyde, hydrogen cyanide, lead, mercury, and nickel (1).

Marijuana can be consumed in a solid, liquid or semi-solid (wax) forms.  When burned, marijuana smoke can be emitted from many different types of devices and make-shift apparatuses such as bongs, pipes, rolled paper, cans, and e-cigarettes/”vapes”(2).

Important First Step

Knowing the dangers of marijuana smoke is an important first step to helping protect yourself and your children from the harmful effects.  As with any other secondhand smoke, the toxic substances and carcinogens can easily be inhaled by children even when they aren’t smoking.

Take ONE Step to Protect Loved Ones from Secondhand Marijuana Smoke Exposure

Knowing and understanding the dangers will help you create safe breathing environments as well as inform other parents of the risks, myths, and preventive measures regarding secondhand smoke and aerosols (3).


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Secondhand Marijuana Smoke Facts

As with any other type of secondhand smoke, the toxic substances and carcinogens in marijuana secondhand smoke can easily be inhaled by children who are present or frequent the areas where smoking takes place.

Be ONE Step closer to protecting kids from secondhand smoke exposure

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  1. American Nonsmokers’ Rights Foundation “Secondhand Marijuana Smoke.”  Retrieved from:
  2. American Lung Association “Marijuana and Lung Health.”  Retrieved from:
  3. Centers for Disease Control and Prevention “2006 Surgeon General’s Report Highlights – How to Protect Yourself and Your Loved Ones from Secondhand Smoke.”  Retrieved from:
  4. Centers for Disease Control and Prevention “Marijuana Health Effects.”  Retrieved from: