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Cigarette smoke contains up to 11.5 nanograms of Mercury per cigarette in mainstream smoke and up to 16.6 nanograms of mercury per cigarette in side stream smoke. A nanogram is a billionth of a gram.

Mercury is a heavy metal that exists in many places throughout the earth. As a result, some of the food we eat contains varying trace levels of mercury. The same applies to tobacco.

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13y ago

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