Saturday 9th May 2026

    Radioactive food (#1,268)

    Photo by <a href="https://unsplash.com/@giorgiotrovato?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Giorgio Trovato</a>
    Photo by Giorgio Trovato (Unsplash)

    1. What food is the most radioactive?

    2. Following the 1986 Chernobyl disaster, radioactive caesium and iodine contaminated upland farmland in Wales, leading to long-term restrictions on over 300 farms. When were the restrictions lifted?

    3. Bananas naturally contain a small amount of radioactive potassium-40. How many bananas would you have to eat to receive the same amount of radiation as you do on a flight from the UK to the USA?

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