English

Biological Effects of Pulsed ElectroMagnetic Radiation Emitted by Cathode Ray Tubes on Human Adults

V. MARTIN-BAUMGARTNER (Occupational Health Medical Doctor, CIST/ICOH No 3119 “A”), A.M. LAVERDURE, J. SURBECK
Presented at the 2nd International Congress on Surgical Andrology & Sexual Surgery
Myconos, Greece, 14-16 June, 2002

Human users were uninvasively tested for any biological perturbations in their ionic balance resulting from exposure to radiation from video display terminals (VDTs). VDTs were powered by a 50-Hz alternating voltage of 220 V. Measured electric and magnetic fields were 13 V/M and 50nT respectively. An experiential apparatus has been developed and tested here that aims to prevent harm from VDT radiation. 120 volunteer adults were distributed in 4 clusters: unexposed, exposed without protection, exposed with protection-placebo, and exposed with active protection, at a distance of 50 to 80 cm in front of a cathodic screen. Na+, K+ and urea (a product of the cellular catabolism) urinary concentrations were measured before and after 4 and 8 hours of working. After 3 to 4 hours of exposure in front of a nude screen or in front of a placebo-equipped screen, an inversion of Na+, K+ and urea urinary eliminatory curves were observed. After 7 to 8 hours of exposure, a 35% decrease in Na+/K+ ratio and a 13% increase in urea concentration were observed. There was no difference between the Na+, K+ and urea urinary eliminatory curves in unexposed control people, or after exposure in front of the screen equipped with the experimental protective apparatus.

These observations show an important modification of the normal polarizing status of the cell membrane, an important mopdification of the ionic exchanges through the membrane and of the cellular metabolism. Pulsed electromagnetic radiation emitted by cathodic screens (PC, TV or video games) act as a cell membrane depolarization factor stimulating the local sympathetic nervous system, and step by step that of all the body cells, placing the body in a position of insidious stress. This stress can be considered as the origin of the biological, physiological, and neuro-psychological perturbations currently described in workers. A causative bond between the biological perturbations and the pulsed radiation emitted by cathodic screens is demonstrated. The total efficiency of the experimental protective apparatus has been verified. Known commercially as the EMF-Bioshield® system, from S.E.I.C. (ISO 9001 qualified for Research and Development), it ensures an effective protection against harmful biological effects of VDT radiation.

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