Radioactivity levels and assessment of tritium in the marine environment around a nuclear power plant in China
10.13491/j.issn.1004 - 714X.2025.05.001
- VernacularTitle:我国某核电站周边海洋环境中氚的放射性水平及其评价
- Author:
HE Yingxue
1
;
JIANG Xiaoyan
1
;
FAN Li
1
;
YAN Dong
1
Author Information
1. National Institude of Radiological Protection, China CDC
- Publication Type:Journal Article
- Keywords:
Tritium;
Seawater;
Marine biology;
Radioactivity level
- From:
Chinese Journal of Radiological Health
2025;34(5):625-629
- CountryChina
- Language:Chinese
-
Abstract:
Objective:With the development of global nuclear power, the discharge of tritium during nuclear power plant
operation has raised concerns. This study provides basic data support for the assessment of tritium radioactivity levels in sea-water and seafood around nuclear power plants.
Methods:This study selected the coastal waters near a nuclear power plant
in China as the research area. A total of 15 surface seawater samples and three types of marine organisms (laver, oyster, and
mullet) were collected to measure and analyze the tritium activity concentrations in seawater and marine organisms.
Results:The tritium activity concentrations in seawater ranged from 1.54 to 3.55 Bq/L, with an average of 2.25 ± 0.70 Bq/L.In marine organisms, the tritium activity concentrations ranged from 1.1 to 1.6 Bq/L. The total dose rates of tritium to mullet and oyster were 6.93 × 10−7 μGy/h and 5.39 × 10−7 μGy/h, respectively.
Conclusion:Compared with tritium activity concentrations in adjacent waters, those in seawater near this nuclear power plant showed no significant increases, and the tritium content in marine organisms remained within normal ranges. The radiation doses of tritium in mullet and oyster did not pose a radiation hazard to these two organisms.
- Full text:2025112710132537292d1e5d275-03fb-4db4-ba9c-26ffd3f0d8c1.pdf
