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Uv-aUltraviolet radiation in the wavelength band of 0.32–0.40 μm; a component of the spectrum of solar radiation that can tan human skin or cause redness in sensitive skin.
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Uv-aUltraviolet light that has wavelengths of 320 nm to 400 nm. The wavelengths of this light are shorter than visible light and are not absorbed in the stratosphere by ozone. [ Deep Sea Research Part I: [..]
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