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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 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
- Radiation: Ionizing radiation - World Health Organization (WHO)
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: Ultraviolet (UV) radiation
Everyone is exposed to UV radiation from the sun and an increasing number of people are exposed to artificial sources used in industry, commerce and recreation The sun is by far the strongest source of ultraviolet radiation in our environment Solar emissions include visible light, heat and ultraviolet (UV) radiation Just as visible light consists of different colours that become apparent in
- 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 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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