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Bioenvironmental engineering keeps water safe for swimmers

Airman 1st Class Joseph Brown, 1st Special Operations Medical Support Squadron bioenvironmental engineer technician, drops a chemical tablet into a test tube of pool water at the Aquatic Center on Hurlburt Field, Fla., July 22, 2015. The chemical tablet reacts in the water and changes color depending on the amount of chlorine present. (U.S. Air Force photo/Senior Airman Meagan Schutter)

PHOTO BY: Senior Airman Meagan Schutter
VIRIN: 150721-F-SN009-031.JPG
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