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Strategy and Metrological Support for Indoor Radon Measurements Using Popular Low-Cost Active Monitors with High and
Andrey Tsapalov1, Konstantin Kovler1, Peter Bossew2
1National Building Research Institute, Faculty of Civil and Environmental Engineering, Technion, Israel Institute of Technology, Haifa 3200003, Israel.
Affordable consumer-grade radon monitors offer reliable indoor radon testing. A new strategy ensures accurate decisions on radon safety, reducing costs and improving accessibility for everyone.
Area of Science:
- Environmental Science
- Public Health
- Metrology
Background:
- Traditional indoor radon testing relies on passive methods like alpha track-etch and charcoal detectors.
- The emergence of affordable, consumer-grade active radon monitors allows for continuous time-series data collection.
Purpose of the Study:
- To validate the use of consumer-grade active radon monitors for quality-assured indoor radon assessment.
- To establish quality assurance requirements for reliable decision-making regarding radon exposure levels.
Main Methods:
- Analysis of measurement results from low-cost active monitors (high and low sensitivity).
- Evaluation of temporal variations in radon concentration as a factor in decision uncertainty.
- Assessment of manufacturer-provided calibration reliability and quality.
Main Results:
- Consumer-grade active monitors can be effectively used for quality-assured indoor radon assessment.
- Temporal variations in radon significantly impact decision-making uncertainty, independent of monitor sensitivity.
- Existing low-cost monitors offer sufficient calibration quality for professional and public use.
Conclusions:
- A rational measurement strategy and clear metrological criteria enhance indoor radon testing reliability.
- Proposed improvements include clarifying key metrological characteristics and upgrading online tools.
- Implementation is expected to reduce testing costs, increase accessibility, and improve quality assurance and control (QA/QC).
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