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What's in a cigarette?

hard facts

Hope you’ve got a strong stomach because the answer is really gross. Ready for it?

Ok, so imagine breathing in flea powder, nail polish remover and floor cleaner all at the same time. But there’s far more: cigarette smoke contains over 4000 chemicals and 69 of these are known to cause cancer. Even if you don't smoke you can still get sick from these poisonous chemicals just by breathing in other people's smoke.

When you smoke a cigarette, you breathe in some of the following:

  • tar, a black, sticky substance that contains many poisonous chemical such as: ammonia (found in floor and window cleaner), toluene (found in industrial solvents) and acetone (found in paint stripper and nail polish remover)
  • nicotine, the addictive drug in tobacco
  • carbon monoxide, a poisonous gas that reduces the amount of oxygen taken up by a person's red blood cells
  • hydrogen cyanide, the poison used in gas chambers during World War ll
  • metals, including lead, nickel, arsenic (white ant poison) and cadmium (used in car batteries)
  • pesticides such as DDT, methoprene (found in flea powder) are used in growing tobacco. Other chemicals such as benzene (found in petrol) and naphthalene (found in mothballs) are added when cigarettes are being made.

Watch these YouTube clips to see what is really in cigarette smoke.

Ghetto Science Smoking

Ghetto Science Smoking

Find out what you really inhale when you smoke a cigarette.
Tar extracted from 400 ciagrettes

Tar extracted from 400 ciagrettes

See what tar from 400 cigarettes looks like. Would you put this in your body?
What's in a cigarette?

What's in a cigarette?

Dr. Jeff Wigand discusses the true contents of what's in a cigarette.


To find out more about the chemicals and poisons found in cigarettes check out:

  • The secrets they keep poster (PDF 963kb) 
  • What's in a cigarette fact sheet (PDF 618kb)
  • Play the game What's in a cigarette
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