Consideration of measurement error when using commercial indoor radon determinations for selecting radon action levels
| Autor: | G.M. Reimer, S. L. Szarzi, Michael P. Dolan |
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| Rok vydání: | 1998 |
| Předmět: |
Observational error
European community Health Toxicology and Mutagenesis Continuous monitoring Public Health Environmental and Occupational Health chemistry.chemical_element Radon Pollution Analytical Chemistry Action levels Nuclear Energy and Engineering chemistry Outlier Statistics Calibration Range (statistics) Environmental science Radiology Nuclear Medicine and imaging Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 236:243-245 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | An examination of year-long, in-home radon measurement in Colorado from commercial companies applying typical methods indicates that considerable variation in precision exsts. This variation can have a substantial impact on any mitigation decisions, either voluntary or mandated by law, especially regarding property sale or exchange. Both long-term exposure (nuclear track greater than 90 days), and short-term (charcoal adsorption 4–7 days) exposure methods were used. In addition, periods of continuous monitoring with a highly calibrated alpha-scintillometer took place for accuracy calibration. The results of duplicate commercial analysis show that typical results are no better than ±25 percent with occasional outliers (up to 5 percent of all analyses) well beyond that limit. Differential seasonal measurements (winter/summer) by short-term methods provide equivalent information to single long-term measurements. Action levels in the U.S. for possible mitigation decisions should be selected so that they consider the measurement variability; specifically, they should reflect a concentration range similar to that adopted by the European Community. |
| Databáze: | OpenAIRE |
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