Monthly and quarterly correction factors for determining the mean annual radon concentration in the atmosphere of underground workplaces in Poland

Fijałkowska-Lichwa, Lidia; Przylibski, Tadeusz A.

doi:10.1007/s10653-022-01280-2

Cited by 4 publications

(1 citation statement)

References 43 publications

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“…Therefore, a list of conditions and situations causing possible exposure to natural radiation independently from the processed or extracted material should be broadened to identify possible situations of concern with regards to radiation protection (IAEA, 2003b). Examples can be given as special cases of workplaces located in confined, underground spaces, such as (Fijałkowska-Lichwa and Przylibski, 2022;Margineanu Romul Mircea, 2019;Grygier et al, 2022):…”

Section: Tier II -Inventory Of Ongoing/former Mining Industrymentioning

confidence: 99%

A Methodology for the Systematic Identification of Naturally Occurring Radioactive Materials (Norm)

Michalik,

Dvorzhak,

Pereira

et al. 2023

SSRN Journal

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Section: Tier II -Inventory Of Ongoing/former Mining Industrymentioning

confidence: 99%

A Methodology for the Systematic Identification of Naturally Occurring Radioactive Materials (Norm)

Michalik,

Dvorzhak,

Pereira

et al. 2023

SSRN Journal

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Verification of correction factors for determining mean annual levels of radon in underground facilities

Fijałkowska-Lichwa,

Olszewski

2024

Environ Geochem Health

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The first verification of a tool developed to improve the work of controlling bodies, managers and employees of underground facilities subject to radiation protection requirements was conducted. The recommended values of correction factors were verified using archival results of measurements conducted for the Institute of Occupational Medicine in Łódź in seven underground workplaces in Poland over exposure periods of a month (10,8678 data) and a quarter of a year (53,688 data). In a cave two groups of monthly factors, produced estimates with almost 70% to 99% consistency with the measured values. Along tourist routes located in mines, a similar fit was obtained using three groups of correction factors for measurement results from March, June and July. In the extraction areas of active underground mines, the best fit was produced by factors calculated as averages for spaces varying in the degree of insulation and ventilation method, while in other departments of mining plants, by correction factors recommended for facilities equipped with mechanical ventilation systems. All the quarterly correction factors produced the best fit between estimated mean annual concentrations and measurement results obtained in the second quarter of the calendar year. A wide variation in result consistency (from 20–30 to 65–80%) obtained for two underground tourist routes in the fourth quarter of the year demonstrates that it is best not to adopt results from this measurement period (October-December) for estimating mean annual radon concentration using the set of quarterly correction factors.

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Intercomparison of equipment measuring radon activity concentration in the air—an example from a hydrotechnical structure in Dobromierz (SW Poland)

Fijałkowska-Lichwa

Przylibski

Norenberg

et al. 2023

J Radioanal Nucl Chem

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The semi-conductor SRDN-3a probe, an AlphaE detector with a silicon diode in a diffusion chamber, an AlphaGUARD monitor with an ionization chamber and CR-39 track detectors had been tested simultaneously in long-term measurements conducted in the technical corridor of Dobromierz dam. The passive detectors were exposed twice: for 56 days, and 117 days, others in parallel, with a 1-h data recording interval. The data distribution was tested with the Shapiro–Wilk test and outliers in the critical region were identified using Shewhart control charts. The correctness was evaluated by a z-score test recommended by the IAEA. The characteristics of outliers for each detectors are determined by the location of the critical region (a two-sided region and a positive skew). These are 13.0% and 13.5% for AlphaE, and 9.81% for SRDN-3a. For the reference device, these are 15.8% and 10.5%. The z-score test confirm that all the detectors can be successfully used both in commercial and scientific monitoring measurements.

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Monthly and quarterly correction factors for determining the mean annual radon concentration in the atmosphere of underground workplaces in Poland

Cited by 4 publications

References 43 publications

A Methodology for the Systematic Identification of Naturally Occurring Radioactive Materials (Norm)

A Methodology for the Systematic Identification of Naturally Occurring Radioactive Materials (Norm)

Verification of correction factors for determining mean annual levels of radon in underground facilities

Intercomparison of equipment measuring radon activity concentration in the air—an example from a hydrotechnical structure in Dobromierz (SW Poland)

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