Public Health
Airman 1st Class Devante Scarver, a 19th Aerospace Medicine Squadron public health technician, compares a sanitation strip to the Hydrion Chlorine Test Paper April 15, 2014, at Little Rock Air Force Base, Ark. If the strip is too dark, the tested water has too much chlorine and the sanitation bucket needs to be changed. (U.S. Air Force photo by Senior Airman Regina Agoha)