• Question: What is the most poisonous gas known to man?

    Asked by Woody to Huma, Jack, Lucy, Miranda, Peter on 13 Nov 2016. This question was also asked by Hamza Hussain.
    • Photo: Peter Boorman

      Peter Boorman answered on 13 Nov 2016:

      Hi Woody,

      One of the most poisonous naturally occurring gases is probably carbon monoxide. This gas is odourless, and replaces oxygen on red blood cells, which stops oxygen from being delivered to cells properly.

      Peter

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