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Is There A Radiation Risk.
Ergonomics Committee and Non-Ionizing Radiation Committee of the American Industrial Hygiene Association 1982 Mar:87-101
Radiation risk from video display terminals was investigated. Emission measurements were made of several hundred video display terminals at 12 facilities, including 25 brands, some with more than 1 model. A spectroradiometer was used to detect ultraviolet, visible, and infrared radiation at a distance of 15 centimeters from the face of the screen. In addition, a radiometer with probe was used to measure irradiance in the near ultraviolet wavelength range of 320 to 400 nanometers. Luminance was measured photometrically at a distance of about 1 meter. Near field electrical components of radiofrequency radiation were measured by an energy density meter, and an electric field probe was used to measure the field strength of radiofrequency radiation. Measurements were made by slowly scanning every accessible surface of the terminal as close to the surface as possible. X-ray emissions were metered at the front surface of the terminal and in the room area. The X-ray, near ultraviolet, and visible radiation levels were far below the thresholds for producing biological injury and current workplace standards. In most cases, radiation levels were below the detection limits of the instrumentation used. The electric and magnetic field strengths were also below the detection limits and OSHA standards. The author concludes that video display terminals do not present a radiation hazard to the employee working at or near the terminals.
Computer-equipment; Office-equipment; Radiation-exposure; Exposure-levels; Radiation-measurement; Quantitative-analysis; Electromagnetic-radiation; Equipment-operators; Health-protection; Work-environment;
Ergonomics Committee and Non-Ionizing Radiation Committee of the American Industrial Hygiene Association
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division