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 …
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 …
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). …
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 …
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 …
Webinar: Disinfection using Ultraviolet Radiation
Dec 17, 2021 · BackgroundThe ability of ultraviolet radiation to disinfect water, surfaces and air has been known for over a hundred years. In the last few decades, the primary application …
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, …
الإشعاع فوق البنفسجي
حقائق رئيسية تنتج سرطانات الجلد أساساً عن التعرّض للإشعاع فوق البنفسجي الناجم عن أشعة الشمس أو عن مصادر اصطناعية مثل أسرّة التشمّس. تم تشخيص ما يزيد على 1,5 مليون حالة إصابة بسرطان الجلد في العالم في عام 2020 وأُبلغ عن ...
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 …
Ultraviolet radiation - World Health Organization (WHO)
Jun 21, 2022 · Key facts Skin cancers are caused primarily by exposure to ultraviolet radiation (UVR), either from the sun or from artificial sources such as sunbeds. Globally in 2020, over …