What is solar UV radiation and why you need to know about it…?

First published June 2017; updated June 2021 What is solar ultraviolet radiation? Ultraviolet (UV) radiation is one of the three major components of sunlight, which include visible light and infrared (heat). It is divided into three categories, classified according to wavelength: UVA, UVB and UVC. The ozone layer blocks all UVC and most (90% or […]