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Radiation: Ultraviolet (UV) radiation Solar emissions include visible light, heat and ultraviolet (UV) radiation Just as visible light consists of different colours that become apparent in a rainbow, the UV radiation spectrum is divided into three regions called UVA, UVB and UVC
Ultraviolet radiation - World Health Organization (WHO) 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 1 5 million cases of skin cancers were diagnosed and over 120 000 skin cancer-associated deaths were reported Worldwide, it is estimated that 15 million people are blind due to cataracts; of these, some 10% may be due to
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
紫外线辐射 - World Health Organization (WHO) zi3wai4xian4fu3she4重要事实 皮肤癌主要由暴露于紫外线辐射所致。紫外线辐射来自太阳或日光浴床等人造日光源。 2020年,全球共检出150多万例皮肤癌,并报告了12万例以上皮肤癌死亡。 据估计,全世界共有1800万人因白内障而失明,其中约10%可能是因暴露于紫外线辐射。 儿童和青少年暴晒会导致今后患
Radiation: The ultraviolet (UV) index 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 skin and eye, and the less time it takes for harm to occur; an important vehicle to alert people about the need to use sun protection
Raising awareness on ultraviolet radiation - World Health Organization . . . Small amounts of ultraviolet (UV) radiation are essential to produce vitamin D in people, yet overexposure to sunlight may result in acute and chronic health effects on the skin, eye and immune system The rise in the incidence of skin cancers over the past decades is strongly related to increasingly popular outdoor activities and recreational exposure Experts believe that 4 out of 5 cases of
Radiation: The known health effects of ultraviolet radiation 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 cancer represent a chronic health risk Skin cancer risk is strongly correlated with the duration and frequency of sun exposure over one’s lifetime Cumulative UV dose is related to the development of
Les effets connus des UV sur la santé Les UV peuvent avoir des effets à court et à long terme sur la peau En plus des effets à court terme bien connus, tels que les coups de soleil ou les réactions allergiques, les effets à long terme comme le cancer de la peau représentent un risque chronique pour la santé Le risque de cancer de la peau est fortement corrélé à la durée et à la fréquence de l’exposition au soleil
Global solar UV index - a practical guide The Global Solar UV Index (UVI) described in this document is a simple measure of the UV radiation level at the Earth’s surface and an indicator of the potential for skin damage It serves as an important vehicle to raise public awareness and to alert people about the need to adopt protective measures when exposed to UV radiation