Staff Sgt. Jeffry Stamm, 39th Medical Group NCO in charge of contingency health readiness, prepares a water sample to test for any volatile organic compounds Jan. 21, 2015, at Incirlik Air Base, Turkey. Using a Hazardous Air Pollutants on Site Emergency Response machine, Stamm can test and analyze volatile organic compounds, toxic industrial chemicals or materials and chemical warfare agents. (U.S. Air Force photo by Senior Airman Krystal Ardrey/Released)