Technogenic Electromagnetic Fields on Urban Areas and Approaches to Their Mapping
https://doi.org/10.31857/S2587556622020091
Abstract
Electromagnetic fields—an environmental factor which condition continues to worsen because of growth of prevalence and power of electric devices. The attention to the need of studying, along with medical and biological and physics and technology aspects of a problem of technogenic electromagnetic fields, also their spatial and temporary variability is paid what requires the use of geographical methods—mapping and monitoring. The article is devoted to the analysis of the first experiences of cartographical submission of characteristics of electromagnetic fields in Russia and other countries. Characteristics of magnetic induction, average on the whole cities, and distribution of its values into functional zones and kinds of buildings are submitted. It is established that the highest values of the magnetic field intensity of industrial frequency, about hundreds of nanotesla, both in Russia and in foreign European countries, are characteristic of historical city centers. The reliability of the received values is calculated. It is noted that the reliability of results, along with volumes of sections is promoted by contrast and internal uniformity of the allocated taxons. Comparison of data on the degree of sharpness of problems of electromagnetic pollution available now in the cities of Russia and foreign countries is executed. The data obtained indicate the comparability of the levels of electromagnetic pollution. Anomalies of technogenic magnetic fields of the urbanized territories and the factors influencing the distribution of anomalies are characterized. The preference for the organization of measurements with a spatial binding of each measurement, and an isolinear form of cartographical representation of results is proved.
About the Authors
V. I. SturmanRussian Federation
St. Petersburg
A. N. Loginovskaya
Russian Federation
St. Petersburg
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Review
For citations:
Sturman V.I., Loginovskaya A.N. Technogenic Electromagnetic Fields on Urban Areas and Approaches to Their Mapping. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2022;86(2):255-267. (In Russ.) https://doi.org/10.31857/S2587556622020091