Research of spatial distribution of electromagnetic fields of industrial frequency in the central part of the city of Saratov

Abstract

The cartographic research of electric and magnetic fields of industrial frequency in the central part of Saratov was performed. Measurements by means of the Gigahertz Solutions ME 3830 B M/E Analyser were executed in the 177 points within the built-up territories and recreational zones. The research showed that tension of electric fields and magnetic induction everywhere do not exceed hygienic standards, but in 15,8% ofmeasurement points excesses of approximate safe level ofmagnetic induction were revealed accordingtothe latestforeign researches. Indicators of tension above 1–3 V/m are noted in isolated cases. Magnetic induction indices vary over a wider range, reaching 100–200 nTl in historical buildings and up to 2000 nTl and more in the anomalies caused by the influence of underground cables and air laying. The minimum values up to 20 nTl are fixed in recreational zones. Strong impact on indicators is exerted by the existence or lack of wires in close proximity to measurement points. Based on the study results an interpolation map in the ArcGIS program using the bilinear interpolation method was created.

Keywords

• electromagnetic fields
• electric fields
• tension
• magnetic fields
• magnetic induction
• mapping
• saratov