In the study of clarifying the biological effects caused by ELF (Extremely Low Frequency) magnetic fields, we have concentrated on induced currents because the induced current is considered an inner index of outer magnetic fields. By surveying the results of animal experiments, we consider that it is significant to clarify the difference of induced current distribution inside the living body, when exposed to various kinds of AC magnetic fields, for example, linearly and circularly polarized magnetic fields. For this purpose, the methods used to estimate induced current distribution which include measurement (probe method) and calculation (charge simulation method) were developed and applied to an inhomogeneous saline model which simulates the living body. These methods were verified by comparing them with the conventional calculation method and it is feasible for these method to be used in estimating induced current distribution by several kinds of magnetic fields.
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