Impact on river water quality by the wildfire in non-decontamination forest in Fukushima, Japan
Abstract
In April 2017, the wildfire occurred in Namie Town, Fukushima Prefecture, Japan. This area has become the difficult-to-return zone due to a significant amount of 137Cs deposited by the TEPCO's Fukushima Dai-ichi Nuclear Power Plant accident in 2011. This wildfire burned at 0.75 km2 of the forest area. However, the forest has not been subject to decontamination, it is considered that river water quality is also affected by the change of 137Cs dynamics due to the wildfire. Therefore, we have been investigating the influence of the wildfire on the change of outflow of 137Cs to evaluate the influence on the change of river water quality. We set up seven monitoring points along the downstream. We collected about 10 liters of water at each monitoring point. Cesium-137 in water samples were separated into two forms; the one is the dissolved form, and the other is the suspended particulate form. Cesium-137 in both forms were measured by a germanium semiconductor detector. In this paper, we report the results of 137Cs concentration and other water quality items in river water.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMNH23E0880K
- Keywords:
-
- 1616 Climate variability;
- GLOBAL CHANGEDE: 1920 Emerging informatics technologies;
- INFORMATICSDE: 4313 Extreme events;
- NATURAL HAZARDSDE: 4341 Early warning systems;
- NATURAL HAZARDS