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  1. Radiation - World Health Organization (WHO)

    Jul 10, 2024 · Radiation is energy that travels in the form of waves or particles and is part of our everyday environment. People are exposed to radiation from cosmic rays, as well as to …

  2. Radiation and health

    Jul 7, 2023 · Radiation is the emission of energy as electromagnetic waves or moving subatomic particles. Natural radiation comes from many naturally occurring radioactive materials found in …

  3. Radiation and health - World Health Organization (WHO)

    We work to strengthen radiation protection of the public, patients and workers worldwide. We provide Member States with evidence-based guidance, tools and technical advice on public …

  4. Ionizing radiation and health effects

    Jul 27, 2023 · WHO fact sheet on ionizing radiation, health effects and protective measures: includes key facts, definition, sources, type of exposure, health effects, nuclear emergencies, …

  5. Radiation: 5G mobile networks and health

    Feb 27, 2020 · 5G, or fifth generation, is the latest wireless mobile phone technology, first widely deployed in 2019. 5G is expected to increase performance and a wide range of new …

  6. Radiation exposure Ionizing radiation exposure is measured as "absorbed dose" in gray (Gy). The "effective dose" measured in sievert (Sv) takes account of the amount of ionizing radiation …

  7. Radiation: Ionizing radiation - World Health Organization (WHO)

    Oct 26, 2020 · Ionizing radiation is radiation with enough energy that to remove tightly bound electrons from the orbit of an atom, causing that atom to become charged or ionized. Here we …

  8. Use of potassium iodide for thyroid protection during nuclear or ...

    Jul 8, 2025 · During a nuclear accident, radioactive iodine may be released to the environment in a plume or cloud and subsequently contaminate soil, surfaces, food and water.

  9. Radiation: The Chernobyl accident

    Apr 23, 2011 · Among those who survived radiation sickness, recovery took several years. Many of them developed radiation-induced cataracts in the first few years after the accident. Recent …

  10. 辐射与健康 - World Health Organization (WHO)

    辐射是以电磁波或运动的亚原子粒子形式发射能量。天然辐射来自土壤、水、空气和体内存在的许多天然放射性物质。人们每天通过空气、食物和水吸入和摄入各种形式的辐射。 辐射暴露可 …