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Electromagnetic radiation emitted from video computer terminals.

M M Weiss, R C Petersen

American Industrial Hygiene Association Journal

|April 1, 1979

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Concerns about video computer terminal radiation are widespread. However, detected radiation levels are below safety limits, with no evidence of harm to human health.

Area of Science:

Occupational Health
Electromagnetic Radiation Physics

Background:

Growing concerns regarding potential health risks from electromagnetic radiation (EMR) emitted by video computer terminals (VCTs).
Users face prolonged daily exposure due to extensive VCT usage.

Purpose of the Study:

To assess the levels of electromagnetic radiation emitted by VCTs.
To evaluate potential health hazards associated with VCT usage.

Main Methods:

Detection of radiation frequencies within the radio frequency (RF) and visible/ultraviolet spectrum.
Comparison of detected radiation levels against established permissible exposure limits.

Main Results:

Radiation detected in the RF (1.5 kHz–1,420 MHz) and ultraviolet/visible (350 nm–600 nm) regions.

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Measured radiation levels were significantly lower than the most restrictive international exposure limits.

Conclusions:

Current VCTs emit radiation well below established safety standards.
No experimental or epidemiological evidence currently supports adverse health effects from VCT-emitted RF radiation.