Investigation of ⁹⁰Sr radioactivity level in the environment of Fangchenggang nuclear power plant during initial operation period

Objective: This study aims to evaluate the level of ⁹⁰Sr in the environment around the Fangchenggang Nuclear Power Plant during its initial operation period. Methods: This investigation is conducted according to the national standard of (HJ/T 61-2001). Results: The radioactivity concentration of ⁹⁰Sr in the samples was measured, which were collected during 2016-2018 from the environment of Fangchenggang Nuclear Power Plant, Guangxi, China. The results are listed as follows: for the atmospheric dust, the range is 0.151 ∼ 3.78 mBq/m². d, the rain water 0.317 ∼ 6.48 mBq/L, the drinking water < 0.350 ∼ 2.38 mBq/L, the ground water 0.403 ∼ 3.18 mBq/L, the surface water < 0.353 ∼ 4.59 mBq/L, the seawater 0.526 ∼ 4.16 mBq/L, the dry soil 0.160 ∼ 3.62 Bq/kg, the dry shore sediments 0.185 ∼ 0.841 Bq/kg, the dry soil of tideland 0.363 ∼ 1.32 Bq/kg, and the dry seawater sediment 0.180 ∼ 0.736 Bq/kg, the fresh biology < 0.0160 ∼ 5.54 Bq/kg · fresh. Conclusion: The radioactivity level of ⁹⁰Sr around the Fangchenggang nuclear power plant is within the normal range and close to those in other regions of China. (authors)