To provide a method for removing and decontaminating dioxins adhering to interior and exterior surfaces such as inner and outer wall faces, floor faces, and ceiling faces of a building in situ by direct decomposition, which is different from a method for scrubbing dioxins and causing secondary pollution.
In the case of decontaminating dioxins adhering to interior and exterior surfaces such as inner and outer wall faces, floor faces, and ceiling faces of a building, a dioxin decontamination agent 6 is brought into contact with the object parts to be treated, which are the interior and exterior surfaces, for a prescribed period. As the dioxin decontamination agent, preferable to be used is a reaction catalyst of a metal ion whose valence is changeable from a low value to a high value and dissolved in an aqueous hydrochloric acid solution.
HORIUCHI SUMIO
TAKE TAKAO
ASADA MOTOYUKI
