| Title: | Use of Commercial Radon Monitors for Low Level Radon Measurements in Dynamically Operated Voc Emission Test Chambers |
| Author(s): | Hofmann M; Richter M; Jann O; |
| Address: | "Bundesanstalt fur Materialforschung und -prufung (BAM), Division 4.2 Materials and Air Pollutants, Unter den Eichen 44-46, 12203 Berlin, Germany" |
| ISSN/ISBN: | 1742-3406 (Electronic) 0144-8420 (Linking) |
| Abstract: | "Compared to the intended EU reference level of 300 Bq m-3 for indoor radon concentrations, the contribution of building materials appears to be low. Considering the recommended limit of 100 Bq m-3 by WHO, their contribution is supposed to be relevant, especially at low air exchange rates. This study as part of a two-part research project investigated the suitability of direct low level 222Rn measurement under simulated indoor conditions with commercial radon monitors and dynamically operated emission test chambers. Active measuring devices based on ionisation or scintillation chambers with 1-sigma uncertainties below 8.6% at 20 Bq m-3 were found to be best suitable for a practical test procedure for the determination of radon exhalation rates of building materials. For the measurement of such low concentrations, the knowledge of the accurate device background level is essential" |
| Keywords: | "Air Pollutants, Radioactive/*analysis Air Pollution, Indoor/*analysis Construction Materials Equipment Design Humidity Radiation Monitoring/*instrumentation Radon/*analysis Temperature Volatile Organic Compounds;" |
| Notes: | "MedlineHofmann, M Richter, M Jann, O eng England 2017/10/06 Radiat Prot Dosimetry. 2017 Nov 1; 177(1-2):16-20. doi: 10.1093/rpd/ncx137" |
