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). …
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, …
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 …
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 ...
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 …
Proposed Amendments from 2003 – ct’d 7. Change approach for limiting UVC radiation exposure from current ‘ratio’ to an ‘absolute’ limit (from IEC) 8. Update guidelines for Recommended …
Radiation: The ultraviolet (UV) index
Jun 20, 2022 · What is the UV index? a measure of the level of UV radiation; the values of the index range from zero upward - the higher the UVI, the greater the potential for damage to the …