Natural and technogenic components of the magnetic field for Kyiv territory

Calculated and experimental magnetic field of natural and technogenic origin for Kyiv territory is represented in this publication. Natural geomagnetic field varies within 50100-50860 nT, increasing from southwest to northeast. Local spatial geomagnetic field inhomogeneity is mainly determined by its lithosphere component that varies within the city from -200 to 500 nT. Man-made component of the magnetic field in frequency range from 10-6Hz to 1 Hz is experimentally studied here for the first time. It is shown that technologic variation sources that have intensity of tens and hundreds nanoteslas have mostly electric and ferromagnetic nature. People and manufacture timetable causes circadian rhythm of technologic variations.