[HIGHLIGHTS] Fire extinguisher containing PFOS, which has been shown to be harmful, has been installed at 30 facilities including parking lots owned by the Tokyo metropolitan government

Fire extinguisher containing PFOS, which has been shown to be harmful, has been installed at 30 facilities including parking lots owned by the Tokyo metropolitan government. "PFAS" is a general term for organic fluorine compounds, and some substances such as "PFOS" and "PFOA" were once used in a wide range of applications.

In December last year, someone activated the fire extinguishing equipment installed in a multi-storey parking lot in Machida City, Tokyo. Fire extinguishing foam containingPFOS flowed into a nearby river, causing the river water to reach national target levels.