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The End of the Whole Mess
Published in Sue Binkley, Biological Clocks, 2020
Less obvious are concerns about the concerns of radiation other than visible light in our environment. For example, we are now exposed to artificial electromagnetic fields (EMFs) including low frequencies from power lines and higher frequency radio, television, microwave, satellite communication, and radar. The name ELF has been given to extremely low frequencies (e.g. 30–300 Hz). A continuous electric 10 Hz field affects human circadian rhythms. Period length shortens from 26.2 to 25.0 hours. The amplitude of the body temperature rhythm increases from 0.382 to 0.439°C. The mean body temperature increases from 37.054 to 37.120. The fraction of time spent in sleep decreases from 33.8% to 32.1%.174
Extremely Low Frequency (ELF) Magnetic Fields
Published in Bertil R. R. Persson, Freddy Ståhlberg, Health and Safety of Clinical NMR Examinations, 2019
Bertil R. R. Persson, Freddy Ståhlberg
The biological effects of ELF magnetic fields of various intensity are summarized in Figure 6. There is a linear relationship between the rate of change of the field and the induced current density. Thus, the figure also applies to biological effects of various current densities. The effects are also related to the length of exposure.
Electrosmog from Communication Equipment
Published in William J. Rea, EMF Effects from Power Sources and Electrosmog, 2018
2010—The U.S. EPA publicly acknowledged that ELF EMFs are a serious threat to health. “More and more people living near HV lines have reported severe symptoms and even life-threatening diseases.”170
Dosimetry analysis of the magnetic field of underground power cables and magnetic field mitigation using an electromagnetic shielding technique
Published in International Journal of Occupational Safety and Ergonomics, 2022
Kayhan Ates, H. Feza Carlak, Sukru Ozen
In recent years, many kinds of research have been carried out on the dosimetric effects of electric and magnetic fields in the extremely low frequency (ELF) region. Today, high-voltage tools such as circuit breakers, transformers, switchgear and transmission lines are considered the primary source of emissions in the ELF region. In particular, transmission lines are one of the significant electric and magnetic field sources in terms of occupational exposure, and also for residential areas. Electrical and magnetic fields in the ELF range are uncoupled; therefore, these fields and their effects might be studied separately as though they occurred from different sources [1]. While the electric field can be reduced due to the metallic sheaths contained in the underground transmission lines, this circumstance does not apply to the magnetic field [2,3]. The wavelength of the ELF magnetic field is very large compared with the size of biological tissue. Ampere’s law and Faraday’s law state that the secondary magnetic field created in human tissue, due to the current flow induced by an external magnetic field, can be negligible. Therefore, the magnetic field within the human body can be considered uniform [4,5].
Effects of extremely low-frequency electromagnetic field on different developmental stages of Drosophila melanogaster
Published in International Journal of Radiation Biology, 2021
Neha Agrawal, Kalyani Verma, Doli Baghel, Amitabh Chauhan, Dipti N. Prasad, Sanjeev K. Sharma, Ekta Kohli
The lifespan curve remains relatively flat for a long period in an early phase of life and increases its rate of decline at an older age. Any treatment/exposure may cause an excess of early deaths in the population, thus indicating significant differences between the exposure group and control. We analyzed the survivorship of flies using two-way ANOVA. We observed a significant difference between survivorship of flies exposed to ELF-EMF and control. In case of acute exposure at third stage instar larvae (F (6.119), p < .0001) and adult fly stage (F (2.750), p = .0058) both has shown the significant difference, but exposure at the egg stage (F (0.83333), p = .5545) failed to show any significance. In case of the chronic exposure (F (13.53), p < .0001), the level of significance is high. Among all ELF-EMF exposures, the maximum difference between ELF-EMF exposed group and control was observed in the chronic exposure group.
Enhancement in the ATP level and antioxidant capacity of Caenorhabditis elegans under continuous exposure to extremely low-frequency electromagnetic field for multiple generations
Published in International Journal of Radiation Biology, 2020
Yahong Wang, Yongyan Sun, Ziyan Zhang, Zhihui Li, Hongying Zhang, Yanyan Liao, Chao Tang, Peng Cai
With the widespread application of electricity, the health effects of the 50/60 Hz extremely low-frequency electromagnetic field (ELF-EMF) generated by transmission lines and related facilities have attracted widespread attention. Wertheimer N et al. suggested that ELF-EMF exposure is associated with the incidence of childhood leukemia in the last century (Wertheimer and Leeper 1979). Many countries have conducted various studies on the health effects of ELF-EMF exposure, especially long-term effects. Current research showed that ELF-EMF exposure can increase the incidence of childhood leukemia (Bonato et al. 2018; Kheifets et al. 2010; Wertheimer and Leeper 1979), may also cause adult leukemia and brain tumors (Kheifets et al. 2008), and can accelerate the apoptosis of ovarian tissue (Khaki et al. 2013; Qi et al. 2015). Some studies have suggested that long-term ELF-EMF exposure is also associated with the occurrence of neurodegenerative diseases (Guerriero and Ricevuti 2016), cardiovascular diseases, and reproductive diseases (Feychting et al. 2005). However, the link between ELF-EMF exposure and various diseases requires further support, and the mechanism is not yet clear.