10:45 AM - 11:00 AM
[1D04] Radiocaesium dynamics in a river affected by the decontamination work in the watershed
Keywords:Radiocaesium, River, TEPCO’s Fukushima Daiichi Nuclear Power Plant accident, Decontamination work
The Kuchibuto River had the special decontamination area (SDA) in the upper reach of the watershed. In the SDA, the decontamination works had been conducted by Ministry of the Environment between March 2013 and December 2015. We will report the change of the concentration and flux of radiocaesium in the river water before and after the decontamination works based on the long-term monitoring results.