Investigation of 90Sr radioactivity levels in drinking water and food around the Qinshan Nuclear Power Plant from 2012 to 2022
10.3760/cma.j.cn112271-20240307-00087
- VernacularTitle:2012—2022年秦山核电站周围饮用水和食品中 90Sr放射性水平调查
- Author:
Lei ZHOU
1
;
Yiyao CAO
;
Hua ZOU
;
Rui WANG
;
Hong REN
;
Peng WANG
;
Shunfei YU
;
Zhiqiang XUAN
;
Zhongjun LAI
Author Information
1. 浙江省疾病预防控制中心，杭州 310051
- Publication Type:Journal Article
- Keywords:
Qinshan Nuclear Power Plant;
90Sr;
Drinking water;
Food
- From:
Chinese Journal of Radiological Medicine and Protection
2025;45(5):449-453
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the radioactivity levels and variation trends of 90Sr in drinking water and food around the Qinshan Nuclear Power Plant in operation. Methods:From 2012 to 2022, the source, factory, and tap water was collected within 30 km around the Qinshan Nuclear Power Plant during the wet and dry seasons (i.e., May and October, respectively) each year to determine the 90Sr concentration in water. According to the dietary habits of local residents, four kinds of food, including rice, cabbage, mullet, and crucian carp, were collected to determine and analyze the 90Sr radioactivity concentration in food using the bis-(2-ethylhexyl) phosphoric acid extraction chromatographic method. Results:From 2012 to 2022, the 90Sr radioactivity concentrations in the source, factory, and tap water around the Qinshan Nuclear Power Plant ranged from 3.73 to 11.89 mBq/L, 2.95 to 9.83 mBq/L, and 3.12 to 8.70 mBq/L, respectively, showing nonsignificant fluctuations over the years. The 90Sr radioactivity concentrations in rice, cabbage, mullet, and crucian carp ranged from 0.02 to 0.46 Bq/kg (dry weight), 0.26 to 1.07 Bq/kg (fresh weight), 0.38 to 1.05 Bq/kg (fresh weight), and 0.08 to 1.32 Bq/kg (fresh weight), respectively, all below the national standard limits. Conclusions:From 2012 to 2022, the 90Sr radioactivity levels in drinking water and food around the Qinshan Nuclear Power Plant were at the background level and remained stable.
