Yokosuka Air Base's PFAS: Mayor makes request to defense minister due to insufficient information provided by US side. At the Yokosuka base of the U.S.

Navy in Kanagawa Prefecture, a type of organic fluorine compound (PFAS), which has been pointed out to be toxic, was detected at high concentrations. The American side installed filters that have the effect of adsorbing PFAS, and initially notified the city of the PFAS concentration.