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Document ID (ISN)47721
CIS number 87-668
ISBN(s) 91-7464-282-0
Year 1985
Convention or series no. Arbete och Hälsa 1985:39
Author(s) Nordenson I., Hansson Mild K., Östman U., Ljungberg H.
Title Chromosomal aberrations in 400 kV substation workers
Original title Kromosomförändringar hos 400 kV-ställverksarbetare [in Swedish]
Bibliographic information Arbetarskyddsstyrelsen, Publikationsservice, 171 84 Solna, Sweden, 1985. 22p. Illus. 12 ref.
Abstract Data are presented on 38 employees of electric power companies. 19 of the subjects worked with the repair and maintenance of circuit breakers and disconnectors in 400kV substations and the other 19 served as controls and were only exposed to normal environmental electromagnetic fields. Coded blood samples were sent to a laboratory for determination of the rate of chromosomal aberrations (CA), sister chromatid exchanges (SCE), and cells with micronuclei (MN). Compared to the control group the exposed men displayed a significant increase in CA and cells with MN. No increase was found in the frequency of SCE. Since in vitro studies of lymphocytes exposed to transient electric currents (spark discharges) produced similar results, the increase in chromosomal damage in substation workers may be associated with exposure to transient electric currents during work.
Descriptors (primary) substations; chromosome changes; electric power generation; electromagnetic fields
Descriptors (secondary) maintenance and repair
Document type E - Books, reports, proceedings
Subject(s) Radiation
Broad subject area(s) Physical hazards
Browse category(ies) Antifertility and prenatal effects
Power generation and distribution
Electromagnetic fields
Genetic factors in reaction to exposures