Radiation: Ultraviolet (UV) radiation - World Health Organization …
2016年3月9日 · The shorter the wavelength, the more harmful the UV radiation. However, shorter wavelength UV radiation is less able to penetrate the skin. The UV region covers the …
Ultraviolet radiation - World Health Organization (WHO)
2024年7月29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 …
Ultraviolet radiation - World Health Organization (WHO)
2022年6月21日 · UV exposure may also be involved in the development of age-related macular degeneration (AMD). Worldwide, it is estimated that 15 million people are blind due to …
Radiation: The known health effects of ultraviolet radiation
2024年7月16日 · UV-A and UV-B rays also differ from each other by how strong their energy is, with UV-A rays having a lower amount of energy. UV-A and UV-B can therefore trigger …
Radiation: Ultraviolet (UV) radiation and skin cancer
2017年10月16日 · As ozone levels are depleted, the atmosphere loses more and more of its protective filter function and more solar UV radiation reaches the Earth's surface. It is …
Radiation: The ultraviolet (UV) index - World Health Organization …
2022年6月20日 · The UV Index is an important vehicle to raise public awareness of the risks of excessive exposure to UV radiation, and to alert people about the need to adopt protective …
Health consequences of excessive solar UV radiation
2006年7月25日 · A few easy-to-implement sun safety measures could prevent much of the cancer and other death and disease burden due to UV radiation, WHO says: Limit time in the midday …
Raising awareness on ultraviolet radiation - World Health …
2024年7月29日 · 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, …
Guidance on radiation and health - World Health Organization …
Natural UV radiation levels depend on sun elevation, latitude and altitude, cloud cover and ground reflection. More than 60 000 skin melanoma-related deaths were estimated to be caused by …
Radiation and health - World Health Organization (WHO)
SunSmart Global UV App . SunSmart Global UV App is a free application for mobile devices that describes the level of solar UV radiation at a specific location. It also provides time slots when …