01:27
U.S. Yokota Air Base commander said Monday that an investigation into the water pollution allegedly caused by their firefighting foam will be conducted "if necessary," and they have stopped using the suspect foam extinguishing systems. The statement comes after a citizens group claimed earlier this month that over half of the 650 people tested in the Tama region were found to have organic fluorine compounds (PFAS) in their blood that exceed the "elevated health risk" limit set by the U.S. The study said the cause of this result could be the contamination of drinking water.