Electromagnetic radiation emissions from video display terminals (VDTs)

This paper presents quantitative measurements of the non‐ionising (radio‐frequency, ultraviolet and visible) and ionising (x‐ray) electromagnetic radiation emitted from 67 different colour and monochrome video display terminals.Measurements of the electric field strength and the magnetic field strength were made over the range of frequencies from 14 kHz to 100 MHz. Broadband measurements from 10 MHz to 26 GHz were also made.Ultraviolet spectral irradiance measurements were made over the wavelength range 320 to 400 nm. The visible (400 to 750 nm) spectral irradiance was also measured.The results have been compared with Australian and International occupational and general public recommended exposure limits. Relative to these limits, the emission levels are low to very low. H is therefore concluded that electromagnetic radiation emissions from VDTs do not pose a health hazard to operators.