UVBsugárzás

UVBsugárzás refers to ultraviolet B radiation, a portion of the ultraviolet light spectrum that reaches the Earth's surface. It is characterized by wavelengths between 280 and 315 nanometers. UVB radiation plays a crucial role in the synthesis of vitamin D in human skin, a process essential for bone health and immune function. However, excessive exposure to UVB can have detrimental effects.

These effects include sunburn, which is characterized by redness, pain, and inflammation of the skin. Over time, cumulative UVB exposure is a significant factor in the development of skin cancers, including basal cell carcinoma, squamous cell carcinoma, and melanoma. It also contributes to premature skin aging, leading to wrinkles, leathery skin, and age spots.

The intensity of UVB radiation varies depending on several factors, including the time of day, season, latitude, and altitude. It is strongest during the summer months and at midday. Clouds can reduce UVB intensity, but they do not block it entirely. Ozone depletion in the Earth's stratosphere further increases the amount of UVB radiation reaching the surface.

Protective measures against excessive UVB exposure include the use of sunscreen, wearing protective clothing, seeking shade, and avoiding peak sun hours. Understanding the properties and effects of UVB radiation is important for maintaining skin health and preventing sun-related damage.