[Occupational health evaluation of electromagnetic fields in electric trains and subway technologic areas].

The article represents measurements and hygienic evaluation of electromagnetic fields in rolling stock and various technologic areas of subway. Results prove that specification of MALs for electric transport magnetic fields is essential for workers and general population. Before the MALs specification, the authors suggest that temporary allowable levels should be set according to national and foreign research.

[Electric traction magnetic fields of ultra-low frequency as an occupational risk factor of ischemic heart disease].

The study was inspired by earlier results that displayed influence of variable natural geomagnetic field (0.005-10 Hz range-ultra-low frequencies) on circulatory system, indicated possible correlation between industrial ultra-low frequency fields and prevalence of myocardial infarction. The authors conducted unique measurements of ultra-low frequency fields produced by electric engines.

[Effect of electromagnetic fields of natural and anthropogenic origin on the frequency of pathology occurrence in St. Petersburg].

The effect of man-made electromagnetic fluctuations and strong geomagnetic disturbances on human pathology-data from St. Petersburg (Russia, 1981) is analyzed. The most remarkable effect is the 7-day variation of the ambulance-call data for myocardial infarction, that show a decrease in pathology-rate (70%) during week-ends and public holidays.