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Hace 1 día · Ultraviolet (UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight , and constitutes about 10% of the total electromagnetic radiation output from the Sun.
1 de jul. de 2024 · Aa- Radiación ultravioleta, ¡protégete! La luz solar es importante para la vida, contribuye a la síntesis de vitamina D; pero si te expones a ella por tiempo prolongado, puede causar daños en la piel, como cáncer, y en los ojos, cataratas. Centro Nacional de Prevención de Desastres | 05 de diciembre de 2019.
1 de jul. de 2024 · Most skin cancers are caused by too much exposure to ultraviolet (UV) light. UV rays are an invisible kind of radiation that comes from the sun, tanning beds, and sunlamps. UV rays can damage skin cells. Protection from UV rays is important all year, not just during the summer.
Hace 5 días · UV radiation is generally affected by changes in the stratospheric ozone and global climate change. Decreased stratospheric ozone allows more UV-B (which has a higher-frequency than UV-A, hence is more harmful for us) to reach the Earth’s surface.
28 de jun. de 2024 · Ultraviolet (UV) radiation is emitted by the Sun and penetrates the Earth's atmosphere. Some UV radiation is essential for our wellbeing, and the sun's rays provide warmth and light. But...
17 de jun. de 2024 · The sun sends energy to Earth in a few different ways: visible light that you can see, infrared radiation that you feel as heat, and rays of UV radiation that you can’t see or feel. Fortunately, the Earth’s atmosphere protects us from most UV radiation.
1 de jul. de 2024 · He explains how sunscreen affects UV radiation and skin cancer risk, what SPF levels to choose, the differences between organic and mineral sunscreens, and what to consider when selecting the best sunscreen for your needs.
