Radiocesium transfer from forest catchment to freshwater fish living in mountain streams estimated from environmental monitoring data in Fukushima Prefecture

Kurikami, Hiroshi

Impacts of Fukushima Nuclear Accident on Freshwater Environments, p.227 - 247, 2021/00

https://doi.org/10.1007/978-981-16-3671-4_14

The relationship between radiocesium migration in forest and fish contamination was analyzed by using a model and environmental monitoring data. As the result, it was estimated that radiocesium sources in forest transferred to fish were changing with time. In the first several years after the accident, the main sources were leaves that fell directly into rivers and litter layer of the forest floor, which led the fast decrease of radiocesium concentration in fish. After the period, the main source was switched to the organic soil underlying the litter layer.