Sediment cores from two coastal lakes located on the island of Kamikoshiki in southwestern
Japan (Lake Namakoike and Lake Kaiike) provide evidence for the response of a …

The Fukushima Daiichi Nuclear Power Plant accident has renewed considerable public
concern about the dangers posed by radioactive contamination in the environment and the …

There has been a sharp rise in the extent and scale of human activities since the mid-20th
century, termed the “Great Acceleration”, and nuclear activities are one of the defining …

Abstract 239 Pu and 237 Np are long-lived radionuclides that emit alpha rays, and once
released into the environment, they are present there for a long period of time. Therefore …

Plutonium (Pu) has been released in Japan by two very different types of nuclear events–the
2011 Fukushima accident and the 1945 detonation of a Pu-core weapon at Nagasaki. Here …

This chapter discusses key aspects related to the assessment of the environmental impact of
plutonium, such as sources, speciation, and underlying processes important for ecosystem …

Owning to the high radiotoxicity in high concentrations, as well as the irreplaceability in
quantifying soil erosion rates, demarcating the Anthropocene, and dating of sediment …

The vertical profiles of 239+ 240Pu and 137Cs activities and 240Pu/239Pu isotopic ratios
are determined for three sediment cores of Lake Qinghai from the Qinghai-Tibetan Plateau …

Forecasting the long-term fate of plutonium (Pu) is becoming increasingly important as more
worldwide military and nuclear-power waste is being generated. Nagasaki sediments …

Reported transfer factor (TF) values of Pu from paddy soil to rice are rather scarce, despite
the radiotoxicity of Pu and the irreplaceable role of rice in Asian peoples' diets. Here, we …