Investigation and study on the radioactive level of centralized drinking water sources in Guangxi Zhuang Autonomous Region

Objective: To investigate the concentrations of gross α, gross β, Uranium, Thorium and Radium-226 in 50 concentrated drinking water sources in 14 major cities of Guangxi, and to accumulate basic data for radiation environmental management in Guangxi. Methods: Based on <> (HJ/T 61 -2001), the sample analysis was carried out by the Corresponding analytical methods of gross α, gross β, Uranium, Thorium and Radium-226 in water. Results: The monitoring results of gross α, gross β, Uranium, Thorium and Radium-226 in concentrated drinking water sources in major cities in Guangxi were < 0.008 ∼ 0.122 Bq/L, 0.014 ∼ 0.250 Bq/L, 0.031 ∼ 0.909 μg/L, 0.063 ∼ 0.709 μg/L and 1.00 ∼ 53.1 mBq/L respectively. Conclusion: The radioactivity of concentrated drinking water sources in major cities in Guangxi is at the background level of the natural environment, and the concentration of either gross α or gross β does not exceed the guiding values of radioactivity index in <>. Groundwater-type drinking water sources conforms to the requirements of Grade III water quality radioactivity index in <>. The radioactive level of the city's centralized drinking water source in Beihai City is the highest among the 14 major cities in Guangxi. (authors)