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QUANTITATIVE AND QUALITATIVE STUDY OF RADON CONTENT IN BULGARIAN MINERAL WATERS
R M Kamenova-Totzeva1, A V Totzev1, R M Kotova1
1Public Exposure Monitoring Laboratory, National Centre of Radiobiology and Radiation Protection, 3, Georgi Sofiiski Blvd., Sofia, Bulgaria.
Radiation Protection Dosimetry
|June 23, 2018
Summary
Radon-222 (222Rn) levels in mineral water and natural springs were measured. High radon concentrations correlated strongly with sulfate and fluoride anions, indicating potential water quality indicators.
Area of Science:
- Environmental Science
- Hydrogeology
- Radiochemistry
Background:
- Radon-222 (222Rn) is a naturally occurring radioactive gas.
- Its presence in mineral water and natural springs can be influenced by geological factors and water chemistry.
- Understanding radon levels is crucial for assessing water quality and potential health implications.
Purpose of the Study:
- To determine the concentration of 222Rn in various mineral water and natural spring sources.
- To investigate the correlation between 222Rn content and physicochemical parameters (TDS, anions, cations, pH, temperature).
- To explore relationships between 222Rn, gross alpha/beta activity, and radium-226 (226Ra) specific activity.
Main Methods:
- Direct measurement of 222Rn using an Alpha Guard with Aqua Kit.
- Analysis of total dissolved solids (TDS), anions (F-, Cl-, SO42-), cations (Na+, Ca2+, Mg2+), pH, and temperature.
- Statistical correlation analysis using IBM SPSS, including Spearman's rho coefficients.
Main Results:
- 222Rn activities ranged from 0.40 to 476 Bq/l, with a median of 16 Bq/l.
- Strong positive correlations were observed between 222Rn and sulfate (SO42-) and fluoride (F-) anions (r=0.731 and r=0.784, respectively).
- No significant correlations were found between 222Rn and 226Ra, gross alpha activity, or gross beta activity.
Conclusions:
- Sulfate and fluoride concentrations are significant indicators of 222Rn levels in mineral water and natural springs.
- The study provides valuable data on radon distribution in these water sources.
- Further research could explore the hydrogeochemical factors controlling radon enrichment.
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