Analysis of polonium-210 activity concentration in seafood from eastern coastal areas of China and its dose assessment
10.13491/j.issn.1004-714X.2026.03.007
- VernacularTitle:我国东部沿海地区海产品中钋-210活度浓度分析及其剂量评估
- Author:
Ziyuan HE
1
;
Liangliang YIN
1
;
Yuhan XIE
1
;
Yanqin JI
1
Author Information
1. National Institute for Radiological Protection and Nuclear Safety, Chinese Center for Disease Control and Prevention; Key Laboratory of Radiological Protection and Nuclear Emergency, Chinese Center for Disease Control and Prevention, Beijing 100088, China.
- Publication Type:OriginalArticles
- Keywords:
210Po activity concentration;
Seafood;
Alpha spectrometry;
Dose assessment
- From:
Chinese Journal of Radiological Health
2026;35(3):349-353
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish an alpha spectrometric method for the analysis of polonium-210 (210Po) in seafood, determine the activity concentration of 210Po in seafood from China’s eastern coastal areas, and assess the corresponding radiation doses. Methods A total of 21 types of seafood belonging to four categories (fish, shrimp, crab, and shellfish) were collected from eastern coastal cities in China. The activity concentration of 210Po in different tissues of the seafood was analyzed using the 209Po tracer-α spectrometry method. The annual effective dose was then estimated by combining seafood consumption rates and dose conversion factors. Results The activity concentrations of 210Po in the edible parts of fish, shrimp, and shellfish samples ranged from 0.65 to 17.89 Bq/kg, 0.81 to 5.95 Bq/kg, and 0.73 to 44.09 Bq/kg, respectively. In whole crab samples, the range was 1.77 to 11.43 Bq/kg. The activity concentration of 210Po in crab samples (whole crab) ranged from 1.77 to 11.43 Bq/kg. 210Po activity was mainly enriched in the head, internal organs, and shell. The annual effective ingestion dose for different age groups ranged from 91.39 to 251.33 μSv/a. Conclusion The annual effective dose resulting from 210Po ingestion via seafood consumption for residents in China’s eastern coastal regions is lower than the annual effective dose reference level recommended by the IAEA.
