Retention of 2011 Fukushima Dai-ichi NPP accident-derived ¹³⁷Cs in the northern North Pacific-Bering Sea.

ABSTRACT: Tracing soluble radionuclides is critical for understanding the mechanisms underlying the transport of soluble materials in marine environments. In the present study, we investigated the surface distribution of the concentrations (activities) of ¹³⁴Cs, ¹³⁷Cs, ²²⁶Ra, and ²²⁸Ra in the northern North Pacific, Bering Sea, and Arctic regions from 2017 to 2024. The ²²⁶Ra and ²²⁸Ra concentrations distinctively separated the surface into the low-²²⁶Ra subtropical-transition and high-²²⁶Ra subarctic current areas in the northern North Pacific and the ²²⁸Ra-rich eastern shelf and ²²⁸Ra-poor western basin areas in the Bering Sea. In 2022-2024, the surface concentrations of the Fukushima Dai-i

SUBMITTER: Inoue M 

PROVIDER: S-EPMC12534566 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature