Effets sur les êtres humains des champs électromagnétiques à très basse fréquence
Effects of extremely low frequency electromagnetic fields on human beings
Lilien, Jean Louis × Dular, Patrick Sabariego, Ruth Beauvois, Véronique Barbier, Pierre Paul Lorphèvre, Raoul #
Societe de l' Electricite, de l' Electronique, et des Technologies de l' Information et de la Communication
Revue de l'Electricite et de l'Electronique vol:5 pages:1-12
Since the early seventies, potential health risks from ELF (Extre- mely Low frequency electromagnetic Fields) exposure (50 Hz) have been extensively treated in the literature (more than 1000 referen- ces registered by WHO (World Health Organisation), 2007). After 30 years of worldwide research, the major epidemiological output is the possible modest increased risk (by a factor 2) of childhood leukaemia in case of a long exposure to an ambient magnetic flux density (B-field) higher than 0.4 μT. However, this fact has not been confirmed by in vivo and in vitro studies. Moreover it has not been validated by any adverse health biological mechanisms neither for adults nor for children. International recommendations (ICNIRP, International Commission on Non-Ionising Radiation Protection) are currently, for general public, not to exceed a B-field of 100 μT (50 Hz) and an E-field of 5 kV/m (50 Hz).
Herein, a rough overview of typical values of ELF fields will be presented followed by a brief literature survey on childhood leukaemia and ELF. The potential carcinogenic effect of ELF would be linked to electrical disturbances in cell behaviour. The major concern linking childhood leukaemia and ELF is thus to determine the response of bone marrow cells under ELF fields. With that purpose, transmembrane potential will be targeted and linked to the E-field at that level.
This paper is three-folded: (1) the electric interactions between ambient ELF fields and the body are studied both qualitatively and quantitatively. Different sources of internal E-field are analysed and classified according to their potential risk; (2) the hypothesis of contact current is detailed; (3) key actions to undertake are highlighted. Based on the current state of the art and some authors’ own developments, this paper proposes simple low cost enhancements of private electrical installations in order to anihilate the major source of potential effects of ELF.