Yy. Reutov et al., INDUSTRIAL-POLLUTION OF THE CITY OF EKATERINBURG BY AUDIO-FREQUENCY MAGNETIC-FIELDS, Russian journal of nondestructive testing, 31(6), 1995, pp. 439-443
Results are presented from measurements of the induction of audio-freq
uency magnetic fields from industrial sources in the city of Ekaterinb
urg. The data is compared with the natural background. The information
can be used as reference material in arranging for the measurement of
fine-scale magnetic phenomena in urban areas.