1. A member for reducing charge for transportation, comprising:a metal layer containing a metal with a redox potential of 0 V or less or an alloy of a metal with a redox potential of 0 V or less; and
a radiation generating layer containing a mixture of a natural ore containing a radioactive substance with a radiolucent resin,
the metal layer and the radiation generating layer being laminated, wherein
the dose of radiation generated from the radiation generating layer is from 0.02 ?Sv/h or more to 0.2 ?Sv/h or less.