EVALUATION OF A RADON AIR MONITOR IN THE MEASUREMENT OF RADON CONCENTRATION IN WATER IN COMPARISON WITH A LIQUID SCINTILLATION COUNTER.
Radiat Prot Dosimetry
; 184(3-4): 426-429, 2019 Oct 01.
Article
in En
| MEDLINE
| ID: mdl-31038694
The World Health Organisation (WHO) recommends that the concentration of radon in water should be no more than 100 kBq m-3 (100 BqL-1) and the Codex Alimentarius Commission states that the limit of quantification (LOQ) of a method should be no more than one-fifth of this value. In this study, a degassing method with an RAD7 device was used to measure radon concentrations in water, compared to a liquid scintillation counter (LSC) method used as the reference, to investigate whether the numerical value of the LOQ of this method was more than 1/5 (20 kBq m-3) of 100 kBq m-3. The degassing method with leak prevention was shown to reach a target value of 20 kBq m-3 or less under a relative humidity of 6% or lower in the chamber of the RAD7 device. Accordingly, the RAD7 degassing method with leak prevention can be used to accurately measure radon concentrations in water within the guidance level set out by the WHO.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Scintillation Counting
/
Water Pollutants, Radioactive
/
Radiation Monitoring
/
Radon
Type of study:
Evaluation_studies
Language:
En
Journal:
Radiat Prot Dosimetry
Year:
2019
Type:
Article
Affiliation country:
Japan