Ultraviolet light. A type of electromagnetic radiation that covers the wavelength range 100-400 nm, which is a higher frequency and lower wavelength than visible light. Ultraviolet light is divided into three bands: UVA (315-400 nm), UVB (280-315 nm), and UVC (100-280 nm). In humans, increased exposure, particularly to high-frequency UVA, can damage living tissue and cause skin cancers, cataracts, and immune system damage.
« Back to Glossary IndexNews
Related News
It is with full hearts and deep sadness that we remember our dear friend, long-time supporter, and former board member, Sharon Schuman, who passed away on April 23, 2025, following a tragic accident near her home in Eugene, Oregon. Her...
Since 1991, the FA Family Retreat has been a tradition that surprises, supports, and uplifts FA families worldwide. Whether families travel from within the United States or across the globe, the retreat offers connection, educational sessions, resources, expert consultations, and...
April 15, 1983 – December 27, 2017By Daisy & Marzban Ardeshir The story below was shared by Imroze’s parents, Daisy and Marzban Ardeshir, in remembrance of their daughter’s strength, grace, and enduring spirit. Our second child, Imroze, was diagnosed with...