Table 2
The average monitoring radioactivity concentrations (Bq/L) of various radionuclides in seawater from 2018 to 2021 (Data obtained and organized from IAEA Marine Radioactivity Information System [17])
| Year | 3H | 60Co | 90Sr | 99Tc | 106Ru | 125Sb | 131I | 134Cs | 137Cs | 210Po | 210Pb | 238Pu |
| (Bq/L) | ||||||||||||
| 2018 | 769 | 0.22 | 1.23 | / | 0.16 | 0.32 | 648 | 221 | 204 | 0.28 | 0.52 | 0.005 |
| 2019 | 580 | / | 1.04 | 89.3 | / | / | 636 | 223 | 202 | / | / | 0.006 |
| 2020 | 662 | / | 2.23 | / | / | / | / | 270 | 278 | / | / | 0.005 |
| 2021 | 922 | / | / | / | / | / | / | 272 | 262 | / | / | / |
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