Assessment of Extremely Low Frequency Magnetic Fields Associated with Industrial Sewing Machines

Ocheni A. U. U. and Genesis J. E.
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Ocheni A. U. U.: Department of Physics, University of Maiduguri, P.M.B. 1069, Maiduguri, Borno State, Nigeria
Genesis J. E.: Department of Physics, University of Maiduguri, P.M.B. 1069, Maiduguri, Borno State, Nigeria

International Journal of Research and Scientific Innovation, 2020, vol. 7, issue 1, 01-05

Abstract: This study assess the level of extremely low frequency magnetic fields associated with industrial sewing machines using the Trifield Metre, and the exposure of tailors was assessed in accordance with the American Congress of Industrial Hygienists (ACGIH) and International Commission on Non-Ionizing Radiation Protection (ICNIRP).The formulation used in this survey is the current density which is an important factor to evaluate the biological effects associated with exposure to extremely low frequency magnetic fields. In this paper a standard of the human femur is considered. Data analyses were conducted and the maximum arithmetic mean of the magnetic fields from the survey was found to be 10µT and a value of 0.43µT was the minimum. In none of the situations does exposure of tailors to ELF-MF exceed the threshold limits recommended by ACGIH. While the maximum induced current density around the human femur bone from the survey was computed to be 64.3 nA/m2 and the value of 2.8 nA/m2 was the minimum current density. The maximum computed value for induced current density for the human femur bone was found to be far less than the recommended reference value of 10 mA/m2 set by ICNIRP.

Date: 2020
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