Radiological impact in Korea following the Fukushima nuclear accident

The pathway and radiological impact of the radioactive plume released at the Fukushima nuclear accident site on the Korean Peninsula has been studied. On March 28, 2011, only I-131 was first observed at all 12 regional monitoring stations in Korea, and the highest activity concentrations in aerosol were 3.12 mBq/m(3) for I-131 at Gunsan, 1.19 mBq/m(3) for Cs-134 and 1.25 mBq/m(3) for Cs-137 at Busan on April 7, 2011. These radionuclides were also detected in dry and wet deposition samples, while the significant increase of I-131, Cs-134 and Cs-137 activity concentrations were not observed in seawater and marine biota samples. (C) 2011 Elsevier Ltd. All rights reserved.