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:
Air Sampling Equipment . NIOSH industrial hygienists Dave Sylvain center and Steve Ahrenholz right get roustabout Mr Carr left aboard the Development Driller II DD II set up with air sampling equipment to collect polynuclear aromatic hydrocarbons in worker breathing zones during work shift This picture was taken during the NIOSH