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31 de may. de 2024 · ultraviolet radiation, that portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region.
- Ultraviolet Radiation
Ultraviolet radiation is emitted from some high-temperature...
- Skin
Human skin, in human anatomy, the covering, or integument,...
- Carcinoma
carcinoma, a cancerous growth of surface tissues of the...
- Ultraviolet Astronomy
Ultraviolet astronomy, study of the ultraviolet spectra of...
- Psoriasis
Psoriasis, a chronic, recurrent inflammatory skin disorder....
- Melanoma
Mutations in BRAF appear to be acquired as a result of...
- UVA Radiation
Other articles where UVA radiation is discussed: ultraviolet...
- UVC Radiation
Other articles where UVC radiation is discussed: ultraviolet...
- Ultraviolet Radiation
Los efectos agudos de la radiación ultravioleta pueden ser: daños en el ADN, quemaduras solares, reacciones fototóxicas y fotoalérgicas e inmunodepresión, que puede considerarse un factor de riesgo de cáncer y dar lugar a la reactivación de virus (por ejemplo, el del herpes labial).
- Overview
- Health Effects
- People at Particular Risk
- Protective Measures
- Who Response
Ultraviolet radiation (UVR) can neither be seen nor felt. While some people are exposed to artificial UVR sources (e.g. in medicine, industry and for disinfection and cosmetic purposes), everyone is exposed to solar UVR. Solar UVR levels are influenced by several factors: 1. Sun elevation: the higher the sun in the sky, the higher the UVR level. UV...
Small amounts of UVR are beneficial to health and play an essential role in the production of vitamin D. However, excessive exposure to UVR is associated with negative health consequences as UVR is carcinogenic to humans.
Children and adolescents are particularly vulnerable to the harmful effects of UVR due to their skin and eye structure. Sunburns in childhood lead to a higher risk of skin cancer in later life. Also, a larger amount of UVR can reach and damage their retina. Fair-skinned people suffer more from sunburn and have a higher risk of skin cancer than dark...
Skin cancer is highly preventable. WHO recommends the following measures to protect against excessive exposure to UVR. 1. Limit time in the midday sun. 2. Seek shade. 3. Wear protective clothing. 4. Wear a broad brimmed hat to protect the eyes, face, ears and neck. 5. Wear wraparound-style sunglasses that provide 99 to 100% UV-A and UV-B protection...
WHO aims to reduce the burden of disease resulting from exposure to UVR. It encourages research, develops guidance and disseminates information tools about effective UVR protection interventions related to the public, occupationally exposed workers and patients. The Global Solar UV index (UVI), an information tool that describes the level of solar ...
14 de ene. de 2024 · ¿Qué es la Radiación Ultravioleta? La radiación ultravioleta (UV) es un tipo de radiación electromagnética con longitudes de onda que varían entre aproximadamente 10 nanómetros (nm) y 380 nm, y frecuencias entre 790 terahercios (THz) y 30 petahercios (PHz).
El ultravioleta ( UV) es una forma de radiación electromagnética con una longitud de onda más corta que la de la luz visible, pero más larga que la de los rayos X. Su nombre proviene del hecho de que su rango empieza desde longitudes de onda más cortas de lo que el ojo humano identifica como luz violeta, pero dicha luz o longitud de onda es invi...
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.
1 de oct. de 2020 · La radiación ultravioleta (UV) se define como la parte del espectro electromagnético entre los rayos X y la luz visible o entre 40 y 400 nanómetros (nm) de longitud de onda. La principal fuente de radiación ultravioleta es el sol. También hay una serie de fuentes artificiales, como cabinas de bronceado y luces halógenas.
