Japanese media recently disclosed that contaminated wastewater might have leaked from the U.S. Yokota Air Base in Tokyo this past August. However, the Tokyo Metropolitan Government only learned of the incident a month later. Reports indicate that from 2010 to 2023, there have been eight instances of PFAS leakage at the U.S. military base. Yet, the U.S. military has consistently denied that any wastewater escaped beyond the base's boundaries.

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