Radiation: Ultraviolet (UV) radiation
Mar 9, 2016 · What is the difference between UVA, UVB and UVC? The three types of UV radiation are classified according to their wavelength. They differ in their biological activity and the extent to which …
Ultraviolet radiation - World Health Organization (WHO)
Jul 24, 2025 · 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 …
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, WHO response.
辐射：紫外线辐射对健康的已知影响
紫外线UV-B引发的唯一好处是刺激产生维生素D。维生素D对于增加食物中钙和磷的吸收十分重要，并在骨骼发育、免疫功能和血细胞形成中起着至关重要的作用。因此，紫外线照射的这种好处必须与同时 …
Radiación: ¿cómo afecta la radiación ultravioleta a la salud?
La radiación ultravioleta A (UVA) tiene una longitud de onda más larga que la radiación B (UVB) y penetra más profundamente en las capas del ojo y de la piel. Además, emite menos energía que la …
Radiación ultravioleta - World Health Organization (WHO)
Resumen La radiación ultravioleta no puede verse ni sentirse. Aunque algunas personas están expuestas a fuentes artificiales de esta radiación (por ejemplo, en la medicina, la industria, para la …
Ultraviolet (UV) radiation
One in every three cancers diagnosed is a skin cancer. The main factor that predisposes to the development of skin cancer is exposure to ultraviolet (UV) radiation, traditionally from the sun and …
Radiation: The known health effects of ultraviolet radiation
Jul 16, 2024 · 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 …
Rayonnement ultraviolet - World Health Organization (WHO)
Dans notre environnement, le soleil est de loin la source de rayonnement ultraviolet la plus importante. Le soleil émet de la lumière, de la chaleur et des rayons ultraviolets (UV). Exactement comme la …
Mpox - World Health Organization (WHO)
Aug 26, 2024 · WHO fact sheet on mpox: includes key facts, definition, outbreaks, transmission, symptoms, diagnosis, treatment, prevention, WHO response.