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UV light is divided into several categories based on its wavelength: UVA (315 to 400 nm): The least energetic and most long-waved UV light, which reaches the Earth's surface and is responsible for skin aging and long-term skin damage. UVB (280 to 315 nm): More energetic than UVA, UVB is partially absorbed by the ozone layer but can still reach ...
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Overview of UV-A, UV-B, & UV-C Ultraviolet Light In The Electromagnetic Spectrum
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