We investigated the biological effects of the environmental magnetic fields in MAGLEV system such as the extremely low frequency intermittent pulsed magnetic field (LFIP-MF) that is generated along the guideway when a MAGLEV train passes. We observed no evidence of biological effect of the exposure to LFIP-MF of MAGLEV system in in vivo long-term exposure experiments using AKR/Jsea mice, in vitro bacterial mutation assay, yeast mutation assay and analysis of global gene expression profiles in yeast. These results indicate that the environmental LFIP-MF of MAGLEV system does not have any health/biological effect that must be considered as a part of environmental assessment.

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