Time-dependent hematological changes in workers exposed to electromagnetic fields

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      <subfield code="a">A World War II-era study, involving the effects of electromagnetic fields (EMFs) emanating from radars and highfrequency radios on the blood of exposed workers, was analyzed for evidence of the effect of time in the manifestation of changes in the hematological system. Statistically significant correlations between increasing white blood cell count and average daily exposure, months of exposure, and total duration of exposure to EMFs were found. Changes in cell count were within the normal range, and thus their relation to epidemiological studies linking EMFs and leukemia, if any, is unclear. Results suggest that the time of exposure may be an additional factor in ascertaining the safety of EMF exposure</subfield>
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      <subfield code="a">Campos electromagnéticos</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 56, nº 2, February 1995 ; p. 189-192</subfield>
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