The harm of smoking doesn't stop at the smoker. It is well known that smokers harm the people around them with their smoke, known as second-hand smoke. But a new study shows the danger doesn't go away completely if the smoker goes outside for a cigarette or a hookah (shisha). The danger lasts after the cigarette is put out, in what is called third-hand smoke.
When you smoke, the toxic substances from tobacco cling to your hair and clothes, so a child is exposed to them when you hold them, even if you aren't smoking at that moment.
Tobacco smoke contains more than 250 toxic gases, chemicals and metals. They include hydrogen cyanide (a powerful poison), carbon monoxide, butane (cooking gas), ammonia (the irritant smell of toilets), toluene (a solvent), arsenic, lead, chromium and cadmium (heavy metals), and polonium-210 (a radioactive substance that causes cancer).
Young children are the most exposed to third-hand smoke, because they crawl and play on contaminated surfaces such as cushions, carpets and floors. The toxins stick to their hands and end up in their mouths.
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