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INVESTIGATION AND ANALYSIS OF ENVIRONMENTAL RADIOACTIVITY LEVELS AT TYPICAL URANIUM MINES IN THE SOUTH OF CHINA
Guoxiu Qin1, Yujuan Liu2, Qimin Wang1
1Shenyang Institute of Engineering, 18 Puchang Dr, Shenyang 110136, Liaoning, China.
Radiation Protection Dosimetry
|April 25, 2020
Summary
Environmental radioactivity in two Chinese uranium mines was assessed. Results indicate that both residents and employees are exposed to elevated levels of radiation from radon and gamma rays, necessitating further safety evaluations.
Area of Science:
- Environmental Science
- Radiological Health
- Nuclear Engineering
Background:
- Uranium mining operations can significantly alter local environmental radioactivity levels.
- Understanding radiation exposure pathways is crucial for protecting populations near mining sites.
Purpose of the Study:
- To investigate and analyze environmental radioactivity levels at two uranium mines in southern China.
- To evaluate key radiological parameters including surface gamma ray dose rates, air radon concentrations, and radionuclide concentrations in soil and water.
Main Methods:
- Field measurements of surface gamma ray dose rates.
- Air sampling and analysis for radon (Rn) and its progeny concentrations.
- Radiochemical analysis of soil and surface water samples for radionuclide content.
Main Results:
- Residents received average maximum annual effective doses of 1.69 and 1.58 mSv from radon inhalation.
- Mine employees received average maximum annual effective doses of 2.59 and 1.87 mSv from radon inhalation.
- Residents received average maximum annual effective doses of 0.77 and 0.69 mSv from gamma radiation, while employees received 1.64 and 1.33 mSv.
Conclusions:
- The study quantifies radiation exposure risks for individuals living and working in the vicinity of these uranium mines.
- Findings highlight the need for ongoing monitoring and potential mitigation strategies to minimize radiation exposure.
- Environmental radioactivity levels necessitate careful management to ensure public and occupational safety.
