Excessive levels of PFAS have been detected in water from 44 private suppliers across Japan, including five that supply Self-Defense Forces facilities, according to a government survey on toxic ¡°forever chemicals¡± in drinking water.

The 44 are among some 2,000 private suppliers of drinking water nationwide surveyed by the environment and land ministries.

They have all taken measures to minimize consumers¡¯ exposure to the chemicals, by switching to public water supply or installing water purifiers, the ministries said.