The regional distribution of indoor radon concentration in Germany

Lehmann, R.; Kemski, J.; Siehl, A.; Stegemann, R; Valdivia-Manchego, M.

doi:10.1016/s0531-5131(01)00544-1

Cited by 6 publications

(4 citation statements)

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“…In a study conducted in Tehran by Shahbazi et al, the maximum and minimum concentrations of radon were 460.2 (Shahid Baqeri in west) and 31 Bq/m3 (Shahid Araqi in north), respectively [30]. Radon concentrations were also estimated to be 57.60, 39, 43.99, 95.83, 108, 31.9, 137.36, 69.5, and 400 Bq/m 3 in Shiraz [13], Tabriz [16], Gorgan [31], Qom [32], Hamedan [33], Mashhad [34], Yazd [35], Spain [36], and Germany [37], respectively. Considering the average global radon concentration in residential buildings; i.e., 39 Bq/m 3 [19], the average radon concentration was lower than but near the global average value in Neyriz and higher than the global average value in Shiraz [13], Gorgan [31], Spain [36], and Germany [37].…”

Section: Resultsmentioning

confidence: 99%

Indoor radon concentrations in residential houses, processing factories, and mines in Neyriz, Iran

Shahsavani

Shamsedini

Tabatabaei

et al. 2019

J Environ Health Sci Engineer

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Purpose This study aimed to determine radon concentrations in mines, stone processing factories, residential houses, and public areas, as well as calculating its effective dose in Neyriz, Iran. Method A total of 74 alpha Track detectors (CR-39 detector) were installed at the desired locations based on the US-EPA's protocol. After 3 months the detectors were collected and delivered to a Radon Reference Laboratory for analyzing. Results Mean ± SD, minimum and maximum radon concentrations in the sampling buildings were 29.93 ± 12.63, 10.33, and 66.76 Bq/m 3 , respectively. The effective annual dose was calculated to be 0.75 mSv/year, which was lower than the recommended value. Significant positive correlations were found between radon concentrations and some studied variables including smoking cigarettes, number of cigarettes smoked, duration of smoking, building's age, number of floors, having cracks, use of colors in the building, use of ceramic for flooring, use of stone for flooring, and gas consumption. The number of cigarettes smoked by the residents was the most important predictor of radon concentrations. Radon concentrations were lower than standard values in all sampling locations. Conclusion It is necessary to conduct further studies in the field of regional geology and determine the sources that release radon in these areas to prevent further increases in radon concentration due to the proximity and plurality of mines and factories.

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Section: Resultsmentioning

confidence: 99%

Indoor radon concentrations in residential houses, processing factories, and mines in Neyriz, Iran

Shahsavani

Shamsedini

Tabatabaei

et al. 2019

J Environ Health Sci Engineer

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“…During a study by WHO in 36 countries, the reference level of radon for the existing buildings was between 200–400 Bq/m 3 ( 6 ). The concentrations of radon gas in the indoor air of residential buildings in Finland ( 12 ), Cyprus ( 13 ), Russia ( 14 ), Germany ( 15 ), Romania ( 16 ), Spain ( 16 ), Vietnam ( 17 ), India ( 18 ), Turkey ( 19 ), Saudi Arabia ( 20 ), Babolsar ( 21 ), Gonabad ( 21 ), Yazd ( 22 ), and Tehran (Ekbatan Housing Complex) ( 23 ) were found to be 155, 6.2, 102.8, 52, 400, 2650, 366, 7–100, 46 ± 26, 9–98, 130, 35 ± 83, 79 ± 3, 137.36 ± 149.5, and 18.4 Bq/m 3 , respectively. Based on extensive studies at Ramsar region in Iran, the annual effective dose for an individual was reported as 2.48–71.74 mSv/y, which is much more than the dose received from natural sources ( 23 ).…”

Section: Introductionmentioning

confidence: 99%

Estimation of the residential radon levels and the annual effective dose in dwellings of Shiraz, Iran, in 2015

Yarahmadi¹,

Shahsavani²,

Mahmoudian³

et al. 2016

Electron physician

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IntroductionRadon is the second most important cause of lung cancer after smoking. Thus, the determination of indoor radon concentrations in dwellings and workplaces is an important public health concern. The purpose of this research was to measure the concentration of radon gas in residential homes and public places in the city of Shiraz and its relationship with the type and age of the buildings as well as the type of materials used to construct the building (brick, block). We also determined the radon dosages that occupants of the building would receive.MethodsThe present study is a descriptive-analytical and cross-sectional research that was conducted on the building’s indoor air in the city of Shiraz in 2015. Using geographic information system (GIS) software and a spatial sampling cell with an area of 25 square kilometers, 200 points were selected. In this study, we used passive diffusive samplers as Solid State Nuclear Track Detector (SSNTD) CR-39 polycarbonate films for three months in the winter. Sampling was conducted in accordance with the U.S. Environmental Protection Agency’s protocol. We determined the concentrations of radon gas at the time of sampling, and calibration factors were determined. The data were analyzed by IBM-SPSS, version 20, descriptive statistics, Kruskal-Wallis, and Mann–Whitney tests.ResultsThis study showed that the average radon concentration was 57.6 ± 33.06 Bq/m3 in residential dwellings. The average effective dose was 1.45 mSv/y. The concentration of radon in 5.4% of the houses was found to be greater than 100 Bq/m3, which is above the level allowed by the World Health Organization (WHO).ConclusionSince radon is the second leading cause of lung cancer, it seems necessary to increase the public’s awareness of this issue and to take action to reduce radon in homes when the concentrations are above the WHO’s guideline.

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“…14,21 These determinants include soil geology characteristics, 22–24 the nature of building construction materials, air exchange and climatic and atmospheric conditions. 25–27…”

Section: Introductionmentioning

confidence: 99%

“…14,21 These determinants include soil geology characteristics, [22][23][24] the nature of building construction materials, air exchange and climatic and atmospheric conditions. [25][26][27] To this end, the present work focused on developing a corrective model of short-term radon concentrations based on numerical calculations. The model aimed to estimate, for the first time in Morocco, seasonal correction factors from geometric mean of monthly radon concentrations and estimated radon concentrations using the seasonal variation model proposed by Pinel et al 12 For this purpose, passive alpha dosimeters, based on the use of LR115 type II, were developed and calibrated to measure the radon concentration of each month, each season and the whole year.…”

Section: Introductionmentioning

confidence: 99%

Development of a corrective model of short-term radon concentrations to estimate annual effective doses in the primary schools of the Doukkala-Abda region, Morocco

Ouakkas

Boukhair

Abdo

et al. 2022

Indoor and Built Environment

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In order to assess the radiological impact of radon on >250,000 students, the total annual effective dose was estimated inside 204 Moroccan primary schools sampled in the Doukkala-Abda region. The measurement of indoor radon concentrations was conducted using the LR115 detector for each month, each season and throughout the year. The evolution of indoor radon concentrations showed a decrease in annual average radon concentrations of 20–26% and 10–14%, respectively, compared to the monthly and seasonal annual average radon concentrations. For this purpose, a corrective model of short-term radon concentrations was developed to calculate the seasonal correction factors in order to estimate the annual indoor radon concentrations. For the qualitative evaluation of these factors, a percentage of deviation between the measured and estimated annual radon concentrations was calculated. Almost half of the estimated annual concentrations were 10% less than the measured concentration and the majority of these estimated values were within 40%. The estimated total annual effective doses received by students, except those in the Sidi Bennour city, were higher than the world average (1.15 mSv/y). Nevertheless, all these doses remained below the permissible limit recommended by the International Commission on Radiological Protection (3–10 mSv/y).

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The regional distribution of indoor radon concentration in Germany

Cited by 6 publications

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Indoor radon concentrations in residential houses, processing factories, and mines in Neyriz, Iran

Indoor radon concentrations in residential houses, processing factories, and mines in Neyriz, Iran

Estimation of the residential radon levels and the annual effective dose in dwellings of Shiraz, Iran, in 2015

Development of a corrective model of short-term radon concentrations to estimate annual effective doses in the primary schools of the Doukkala-Abda region, Morocco

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