This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
US Navy NE Lt. Cmdr. Paul Treadway Industrial Hygiene Officer and Assistant Safety Officer of the Nimitzclass aircraft carrier USS Abraham Lincoln CVN uses sound level meter to demonstrate the high deci. en Puget Sound Oct Lt Cmdr Paul Treadway Industrial Hygiene Officer and Assistant Safety Officer of the Nimitzclass aircraft