What is the impact of humans exposed to loud underwater sounds?
High intensity (pressure) sound waves are KNOWN to be harmful. Experiments with humans by the U.S. Navy have shown that physiological damage occurs from loud sounds in the water. Symptoms include disorientation, memory loss and seizures. On March 10, 1998 one human in the water in Hawaii was exposed to the LFAS at 120 dB. She was seriously disoriented when she left the water and diagnosed by a physician as having acute trauma. She reports it took months for her to recover.