Assessment methods for electric and magnetic fields in low and intermediate frequencies related to human exposures and the status of their standardization

Protection of human from exposures to electric and magnetic fields has received public concerns for decades. Methods to assess physical quantities related to the exposure, such as artificially generated electric and magnetic fields, electric fields inside human body caused by the exposures, and contact currents, have been investigated and established in relation to compliance assessment against exposure guidelines. In addition, some of the methods have been standardized internationally to facilitate mutual authentication by standard methods. This article reviews the methods to assess the human exposure to electric and magnetic fields, mainly focusing of low and intermediate frequencies (approximately below 100 kHz), and the status of their standardization.