Radioactivity Dynamics in River System
ＱHow is the concentration of radioactive cesium in seawater and marine sediment changing?
ＡIn Fukushima Prefecture, the concentration of radioactive cesium in seawater and marine sediment was high just after the accident. But after that it has been decreasing.
The concentration of radioactive cesium in sea water(upper figures) and marine sediment(lower figures) has been decreasing. Similar results are reported by other institutes (e.g., NRA, 2017).
- Do radiation does will increase using bathing beach?
- Does contamination of estuaries continue due to continuous outflow of radioactive cesium from rivers?
- In what kinds of land use is radioactive cesium deposited? How much is deposited?
- What is the source of radio-cesium in the airborne dust sampling?