Radiation: Ultraviolet (UV) radiation
2016年3月9日 · What is UV? 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. …
Ultraviolet radiation - World Health Organization (WHO)
2025年7月24日 · 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 …
Radiation: The ultraviolet (UV) index
2022年6月20日 · 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 …
Ultraviolet radiation - World Health Organization (WHO)
2022年6月21日 · The Global Solar UV index (UVI), an information tool that describes the level of solar UVR at the Earth’s surface, was developed by WHO, the United Nations Environment …
Radiation: The known health effects of ultraviolet radiation
2024年7月16日 · 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 …
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). …
Rayonnement ultraviolet - World Health Organization (WHO)
2022年6月21日 · Le rayonnement ultraviolet (UV) ne peut être ni vu ni ressenti. Alors que certaines personnes sont exposées à des sources artificielles de rayonnement UV (par …
Les effets connus des UV sur la santé
Les UV-A ont une longueur d’onde supérieure à celle des UV-B et pénètrent donc plus profondément dans les couches de l’œil et de la peau. En outre, les UV-A dégagent moins …
Ultraviolet (UV) radiation - World Health Organization (WHO)
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 …
辐射：紫外线辐射对健康的已知影响
紫外线A（UV-A）射线的波长比紫外线B（UV-B）射线更长，因此能够更深入地穿透眼睛和皮肤的组织层。UV-A和UV-B射线的能量强度也各不相同，UV-A射线的能量较低。因此，UV-A和UV …