nærUV

nærUV is a term that refers to the near-ultraviolet portion of the electromagnetic spectrum. This region encompasses wavelengths ranging from approximately 300 nanometers (nm) to 400 nm. It lies just beyond the visible violet light, hence the name "near" UV. nærUV radiation is emitted by the sun and is a component of natural sunlight. It also originates from artificial sources such as black lights and tanning beds.

While the UV spectrum is broadly categorized into UVA, UVB, and UVC, the term nærUV often encompasses UVA and a portion of UVB. UVA rays have longer wavelengths and can penetrate deeper into the skin, contributing to skin aging and wrinkle formation. UVB rays have shorter wavelengths and are primarily responsible for sunburn and play a significant role in the development of skin cancer. UVC rays, with the shortest wavelengths, are largely absorbed by the Earth's ozone layer and are generally not a concern for terrestrial life.

Exposure to nærUV radiation can have both beneficial and harmful effects. In moderation, it can stimulate the production of vitamin D in the skin, which is essential for bone health. However, excessive exposure can lead to a range of dermatological issues, including premature aging, sunburn, and an increased risk of skin cancer. Protective measures such as sunscreen, protective clothing, and avoiding peak sun hours are recommended to mitigate the harmful effects of near-ultraviolet radiation.