ELF magnetic field exposure in a neonatal intensive care unit

Bioelectromagnetics
Cristiano RiminesiMarco Pezzati

Abstract

In this paper, the magnetic flux density (MFD) distribution in a neonatal intensive care unit is described and MFD values inside a few open infant warming systems and incubators are reported. Typical measured values of the magnetic flux density at power frequency (50 Hz) in the "general environment" (the rooms of the unit) were lower than 0.2 microT, while higher MFD values were detected close to medical equipment and inside the open infant warming systems. In both cases, the magnetic flux density quickly decreases with increasing distance, so that measured values are reduced to "background" (i.e., general environment) levels 20-30 cm away from the sources. The total harmonic content over the 100-800 Hz frequency range was also evaluated. In the general environment, measured values in this band were negligible, while this was not the case close to medical equipment. Field levels inside the open and closed incubators depend on the position of the electronic control system, of the heating power generator and its winding conductor, and of the 220 V main plug. The magnetic flux density was also monitored for a prolonged period of time in a few types of open infant warming systems and incubators under standard intensive care unit op...Continue Reading

References

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Citations

Jul 14, 2009·Journal of Perinatal Medicine·Roberto AntonucciVassilios Fanos
Jul 25, 2015·Journal of Minimally Invasive Gynecology·Jee Soo ParkHee Young Cho
Oct 16, 2016·Environmental Research·I CalventeA Múñoz-Hoyos
Oct 11, 2017·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Carlo Valerio BellieniAlberto Verrotti
Jun 12, 2017·Neonatology·Rohit PassiCharles Palmer
Nov 20, 2019·Environmental Research·Dimitri BessetErwan Stephan Blanchard

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