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  • Radiation - World Health Organization (WHO)
    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 radioactive materials found in the soil, water, food, air and also inside the body
  • Ionizing radiation and health effects
    WHO fact sheet on ionizing radiation, health effects and protective measures: includes key facts, definition, sources, type of exposure, health effects, nuclear emergencies, WHO response
  • Radiation: Ionizing radiation
    Energy emitted from a source is generally referred to as radiation Examples include heat or light from the sun, microwaves from an oven, X rays from an X-ray tube and gamma rays from radioactive elements Ionizing radiation can remove electrons from the atoms, i e it can ionize atoms
  • 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 health issues related to ionizing and non-ionizing radiation
  • Radiation and health
    Radiation is the emission of energy as electromagnetic waves or moving subatomic particles Natural radiation comes from many naturally occurring radioactive materials found in soil, water, air and in the body Every day, people inhale and ingest forms of radiation from air, food and water Today, the most common artificial sources of human exposure to radiation are X-ray machines and
  • 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 health issues related to ionizing and non-ionizing radiation
  • Radiation: The known health effects of ultraviolet radiation
    UV radiation can cause short- and long-term health effects on the skin In addition to the well-known short-term effects such as sunburn or allergic reactions, long-term effects like skin cancer represent a chronic health risk Skin cancer risk is strongly correlated with the duration and frequency of sun exposure over one’s lifetime Cumulative UV dose is related to the development of
  • Radiation: Health consequences of the Fukushima nuclear accident
    Doses of radiation have been estimated based on models and measurements for different representative groups of individuals of the Japanese population The assessment of the doses included both external and internal (through inhalation of the radioactive plume and ingestion of radioactivity in food) exposure pathways A large survey of the health of residents of Fukushima Prefecture, the
  • Radiation emergencies - World Health Organization (WHO)
    Radiation emergencies can greatly impact human health and the environment The impact will vary considerably, depending on the scenario, scale of the emergency, type of radiation and exposure duration, the pathway of the exposure (external, internal, or combined), availability and timeliness of countermeasures, as well as individual characteristics of the exposed person (age, gender
  • Ultraviolet radiation - World Health Organization (WHO)
    Ultraviolet (UV) radiation covers the wavelength range of 100–400 nm, which is a higher frequency and lower wavelength than visible light UV radiation comes naturally from the sun, but it can also be created by artificial sources used in industry, commerce and recreation





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