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在现场条件下，低镭含量和高镭含量地区氡通量监测器的比较。

Intercomparison of Radon Flux Monitors at Low and at High Radium Content Areas under Field Conditions.

机构信息

Radon Group, University of Cantabria, 39011 Santander, Spain.

Laboratory of 222Rn Studies, Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya, 08028 Barcelona, Spain.

出版信息

Int J Environ Res Public Health. 2022 Apr 1;19(7):4213. doi: 10.3390/ijerph19074213.

DOI:10.3390/ijerph19074213
PMID:35409895
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8998188/
Abstract

Interlaboratory exercises are a good tool to compare the response of different systems to the same quantity and to identify possible inconsistencies between them. One of the main goals of the EMPIR 19ENV01 traceRadon project is to harmonize radon flux measurements based on different systems and methodologies. In the framework of the traceRadon Project, two radon flux intercomparison campaigns were carried out in October 2021 at high and at low radon source areas. Four institutions participated in the field intercomparison exercises with their own systems. Every system was based on a specific radon monitor (diffusion or pump mode) and an accumulation chamber (with manual or automatic opening). Radon fluxes were calculated by each participant using both exponential and linear fittings of the radon activity concentration measured over time within the accumulation chambers. The results of this study show mainly: (i) the exponential approach is not advisable due to the variability of the radon flux and the leakage of the systems during long-time measurements; (ii) the linear approach should be applied to minimize the measurement period in agreement with the time response and sensitivity of the monitors; (iii) radon flux measured at high radon source areas (radium content of about 800 Bq kg) risks being underestimated because of the influence of advective effects; (iv) radon flux measured at low radon source areas (radium content of about 30 Bq kg) may present large uncertainties if sensitive radon monitors with pump mode are not used.

摘要

实验室间比对是一种很好的工具，可以比较不同系统对同一数量的响应，并确定它们之间可能存在的不一致之处。EMPIR 19ENV01traceRadon 项目的主要目标之一是协调基于不同系统和方法的氡通量测量。在 traceRadon 项目的框架内，于 2021 年 10 月在高氡源区和低氡源区进行了两次氡通量比对活动。四个机构使用自己的系统参加了现场比对活动。每个系统都基于特定的氡监测器（扩散或泵模式）和积累室（手动或自动开启）。每个参与者都使用在积累室内随时间测量的氡活度浓度的指数和线性拟合来计算氡通量。这项研究的结果主要表明：（i）由于氡通量的可变性和系统在长时间测量期间的泄漏，指数方法不可取；（ii）为了最小化测量周期，应采用线性方法，这与监测器的时间响应和灵敏度一致；（iii）由于平流效应的影响，高氡源区（镭含量约为 800 Bq kg）测量的氡通量有被低估的风险；（iv）如果不使用带有泵模式的灵敏氡监测器，低氡源区（镭含量约为 30 Bq kg）测量的氡通量可能存在较大的不确定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/dd02ed722fb7/ijerph-19-04213-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/268e282ba63b/ijerph-19-04213-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/c40fd0ada9a4/ijerph-19-04213-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/874b849c6701/ijerph-19-04213-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/2e6f5f35c737/ijerph-19-04213-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/b0298fe8766b/ijerph-19-04213-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/b9a5b3237ce4/ijerph-19-04213-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/d228d1dee454/ijerph-19-04213-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/770573900bdc/ijerph-19-04213-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/94b811a4ca11/ijerph-19-04213-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/968cab05b5fe/ijerph-19-04213-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/dd02ed722fb7/ijerph-19-04213-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/268e282ba63b/ijerph-19-04213-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/c40fd0ada9a4/ijerph-19-04213-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/874b849c6701/ijerph-19-04213-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/2e6f5f35c737/ijerph-19-04213-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/b0298fe8766b/ijerph-19-04213-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/b9a5b3237ce4/ijerph-19-04213-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/d228d1dee454/ijerph-19-04213-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/770573900bdc/ijerph-19-04213-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/94b811a4ca11/ijerph-19-04213-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/968cab05b5fe/ijerph-19-04213-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7392/8998188/dd02ed722fb7/ijerph-19-04213-g011.jpg

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