Ultraviolet Radiation Absorption (UV Absorption)

Ultraviolet (UV) radiation absorption describes the process by which various molecules, both in the atmosphere and in materials, intercept UV light. Atmospheric gases like ozone and oxygen absorb significant amounts of UV radiation, particularly UVC and UVB, protecting life on Earth. Synthetic molecules in sunscreens also absorb UV, preventing it from reaching the skin. Absorption effectiveness depends on the molecule's structure and the UV wavelength. Living organisms have photoreceptors to respond to specific UV wavelengths, while excessive UV exposure can lead to harmful effects like skin cancer and cataracts.

Other names

UV AbsorptionUltraviolet light absorption

Absorption of photons by molecules, leading to energy dissipation or photochemical reactions.