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  1. Extremely low frequency electric and magnetic fields as risk factors in chemical industry.

    Article, Communication - En anglais

    Medichem 1997 : Silver Jubilee Medichem Congress on Occupational and Environmental Health in the Chemical Industry. Varna, BGR, 1997/09/30.


    The risk assessment for staff in the chemical industry is usually related to accident hazards, production emergencies, blast and fire danger, or to the adverse effects of toxic substances.

    The combined effect of electric and magnetic fields with other factors combined with other hazards and working conditions, has not yet been studied.

    In all branches of industry, the members of staff who endure the most exposure to electric and magnetic fields, are electricians.

    This group is considered at high risk because of the increased probability of cancer.


    We studied electric and magnetic fields with low frequencies in the nitrogen chemical fertilizer plant « HIMCO », Vratza.

    Sources of extremely low frequency fields (50 Hz) are local thermal power plants, substations, open (110 kV) and closed (6 kV and 0.4 kV) distribution devices, transformers, compressors and turbocompressors, command halls, and video display units.

    The methods used for assessing exposure of low frequency electric and magnetic fields were based on the separate measurement of the electric and magnetic components of the field, using spot measurements and evaluation of the real time duration of exposure for different staff groups.


    The measured values for the different staff groups were within the limits of national and international standards. (...)

    Mots-clés Pascal : Exposition professionnelle, Médecine travail, Champ basse fréquence, Champ électromagnétique, Industrie chimique, Teneur air ambiant, Lieu travail, Evaluation, Source rayonnement, Facteur risque, Homme

    Mots-clés Pascal anglais : Occupational exposure, Occupational medicine, Low frequency field, Electromagnetic field, Chemical industry, Ambient air concentration, Work place, Evaluation, Radiation source, Risk factor, Human

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0067092

    Code Inist : 002A08E. Création : 31/05/1999.