Radon levels and indoor air quality after application of thermal retrofit measures—a case study

Gulan, Ljiljana; Stajic, Jelena M.; Spasić, Dušica; Forkapić, Sofija

doi:10.1007/s11869-022-01278-w

Cited by 9 publications

(4 citation statements)

References 32 publications

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“…These might be the probable reasons for having lower Rn levels obtained in our study. Studies [41][42][43] clarified similar influences of ventilation, usage of mechanical appliances, and building factors affecting indoor Rn reduction/variation. On the other hand, obtained long-term Tn concentration (7 ± 2 Bqm −3 to 56 ± 8 Bqm −3 ) was higher than Rn (Table 1).…”

Section: Estimation Of Indoor Radon and Thoron Concentrations In Dwel...mentioning

confidence: 98%

Preliminary Population Exposure to Indoor Radon and Thoron in Dhaka City, Bangladesh

et al. 2023

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Radon, an element of natural radiation, is considered one of the leading causes of lung cancer worldwide. In Bangladesh, radon has been clarified as a foremost source of radiation exposure. Potential natural-radiation-induced elevated cancer risks were estimated in Bangladesh previously for the population. In this survey, as a very preliminary study in the country, comparative indoor radon (222Rn, Rn) and thoron (220Rn, Tn) concentration/population exposure was determined for the multistoried dwellings of south-western areas of Dhaka city. RADUET was used to assess annual Rn and Tn concentrations in determining the primary inhalation dose for the population. The annual effective dose of Rn and Tn was evaluated in this study for dwellings at 0.3 mSvy−1, constituting a Tn dose contribution of an average of 40% with a dwelling-based wide range of 10–96%. Thus, Tn should not be neglected for Bangladesh while estimating radiological inhalation dose from the indoor environment. Again, the equilibrium factors, F of Rn and Tn, were determined by short-term measurement at averages of 0.6 and 0.02, respectively. Furthermore, using questionnaire estimation by principal component analysis, PCA following the dwelling characteristics, human lifestyles, and estimated long-term indoor Rn and Tn concentrations, this paper discussed indoor atmospheric/Rn factors for the investigated multistoried dwellings in Dhaka city.

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Section: Estimation Of Indoor Radon and Thoron Concentrations In Dwel...mentioning

confidence: 98%

Preliminary Population Exposure to Indoor Radon and Thoron in Dhaka City, Bangladesh

et al. 2023

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“…Precautions that can be taken to reduce the risks and hazards caused by radon are given below [20,28,57,121,[146][147][148][149][150][151][152]:…”

Section: Possible Precautions Against Radonmentioning

confidence: 99%

Radon, Concrete, Buildings and Human Health—A Review Study

Bulut,

Şahin

2024

Buildings

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A comprehensive evaluation of the results obtained according to the measurement of radon gas in buildings and concrete, which is the most consumed material in the world after water, in accessible studies carried out in the last 40 years is the main objective of this study. The paper additionally aims to address the gap in the literature by comparatively determining which parameters affect radon–concrete and radon–building relationships. The scientific knowledge compiled within the scope of this article was presented under the main headings of radon and radon gas measurements in concrete and buildings. Radon gas, also known as the “invisible killer”, is considered the second most important cause of lung cancer after smoking (the gas is responsible for 3–14% of lung cancer cases in the world). The results determined that radon concentration limits have been applied in the range of 100–400 Bqm−3 in houses and 100–3700 Bqm−3 in workplaces. Studies conducted on the exhalation rate of radon showed that the radon exhalation rate of concrete may be in the range of 0.23–510 Bqm−2 h−1. The results of indoor radon concentration measurements revealed that values between 4.6 Bqm−3 and 583 Bqm−3 were obtained. Despite the existing literature, some researchers state that there is an urgent need for an improved and widely accepted protocol based on reliable measurement techniques to standardize measurements of the radon exhalation rate of construction materials and the indoor radon concentration of buildings.

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“…The implementation of energy-saving measures can improve the indoor air quality. However, some authors reported that leak-proof PVC windows lead to increased radon accumulation, so the controlled ventilation system should be applied in the lowermost floor of building [51,52].…”

Section: Mitigation Measuresmentioning

confidence: 99%

Indoor Radon Testing, Effective Dose and Mitigation Measures in a Residential House of a Mining Area

Spasić,

Gulan,

Vučković

2024

Atmosphere

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This study presents the results of continuous indoor radon measurements in a test-house in the vicinity of the “Trepča” mine, near the town of Kosovska Mitrovica. Annual measurements were performed using the detector, Airthings Corentium Home, in the bedroom of an old residential building. A high estimated annual effective dose from radon (33 mSv) was calculated using the last ICRP dose conversion factor and is discussed here regarding the previously recommended ones. There are significant indications concerning the health hazard. Several measures are proposed and serve as a technical solution including other effective, low-cost radon mitigation procedures in order to reduce radon levels. The effectiveness of the applied measures resulted in a 44% reduction in radon concentration.

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Radon levels and indoor air quality after application of thermal retrofit measures—a case study

Cited by 9 publications

References 32 publications

Preliminary Population Exposure to Indoor Radon and Thoron in Dhaka City, Bangladesh

Preliminary Population Exposure to Indoor Radon and Thoron in Dhaka City, Bangladesh

Radon, Concrete, Buildings and Human Health—A Review Study

Indoor Radon Testing, Effective Dose and Mitigation Measures in a Residential House of a Mining Area

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