Introduction to UVR at work

Introduction

Optical radiation is found ubiquitously. It is not solely emitted by natural sources, e. g. the sun, but also by many artificial sources or applications. Ultraviolet radiation (UVR) is vectored electromagnetic radiation in the wavelength regime 100 nanometres (nm) to 400 nm. This spectrum is subdivided into three ranges:Near ultraviolet - UVA: 315 - 400 nmMiddle ultraviolet - UVB: 280 - 315 nmFar ultraviolet - UVC: 100 - 280 nmAlthough being known as essential for human health, e. g. production of vitamin D, (over)exposure to UVR can be hazardous. Workers can be exposed to UVR at different levels and at different places. This article deals with the…