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NASA kicks off air quality study at Osan

Barry Lefer, Korea United States-Air Quality (KORUS-AQ) program scientist, gives opening remarks for the KORUS-AQ experiment media day at Osan Air Base, Republic of Korea, April 29, 2016. KORUS-AQ is a joint field study by NASA and the National Institute of Environmental Research that will advance the ability to monitor air pollution more accurately from space. (U.S. Air Force photo by Staff Sgt. Jonathan Steffen/Released)

PHOTO BY: Staff Sgt. Jonathan Steffen
VIRIN: 160429-F-UI176-234.JPG
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