Modeling and measuring the indoor radon concentrations in high-rise buildings in Hong Kong

Man, C.K.; Yeung, H.S.

doi:10.1016/s0969-8043(98)00128-6

Cited by 27 publications

(16 citation statements)

References 3 publications

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“…Seasonal variations of the indoor radon concentration with prediction through model calculations have been conducted by Arvela (1995). Mathematical modelling and calculation of indoor radon levels have also been performed by Capra et al (1994) and Man and Yeung (1999). These calculations also include the contribution from building materials.…”

Section: Introductionmentioning

confidence: 99%

Development of a model for radon concentration in indoor air

Jelle

2012

Science of The Total Environment

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A model is developed for calculation of the radon concentration in indoor air. The model takes into account various important parameters, e.g. radon concentration in ground, radon diffusion resistance of radon barrier, air permeance of ground, air pressure difference between outdoor ground and indoor at ground level, ventilation of the building ground and number of air changes per hour due to ventilation. Characteristic case studies are depicted in selected 2D and 3D graphical plots for easy visualization and interpretation. The radon transport into buildings might be dominated by diffusion, pressure driven flow or a mixture of both depending on the actual values of the various parameters. The results of our work indicate that with realistic or typical values of the parameters, most of the transport of radon from the building ground to the indoor air is due to air leakage driven by pressure differences through the construction. By incorporation of various and realistic values in the radon model, valuable information about the miscellaneous parameters influencing the indoor radon level is gained. Hence, the presented radon model may be utilized as a simple yet versatile and powerful tool for examining which preventive or remedial measures should be carried out to achieve an indoor radon level below the reference level as set by the authorities.

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Section: Introductionmentioning

confidence: 99%

Development of a model for radon concentration in indoor air

Jelle

2012

Science of The Total Environment

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“…The aggregate for making concrete, extracted either locally or from nearby cities in the Guangdong Province of China, is also predominantly granite in nature (Man and Yeung, 1999). These widely used building materials are dominant sources of radon, a significant indoor air pollutant in Hong Kong buildings , and their contribution to outdoor radon concentration is thus significant too.…”

Section: Resultsmentioning

confidence: 99%

An approach to assessing the probability of unsatisfactory radon in air-conditioned offices of Hong Kong

Mui¹,

Wong²,

Hui³

2008

Journal of Environmental Radioactivity

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“…The decreasing trend in the winter radon concentrations with the floor level may be attributed to increasing air exchange rates with floor levels. Recently, this behaviour was measured and modeled by Man and Yeung (1999), who also found that air exchange rates increase with floor levels, whilst the indoor and outdoor radon concentrations decreased. These authors using a model utilizing a simple mass balance equation calculated the indoor radon concentration inside a room on sach of level and the results agreed well with measurements.…”

Section: Radon Measurementsmentioning

confidence: 88%

A survey of 222Rn concentrations in dwellings of the town of Metsovo in North-western Greece

Ioannides

Stamoulis²,

Papachristodoulou³

2019

hnps

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A radon survey has been carried out of indoor radon concentrations in dwellings ocated in the town of Metsovo, in north-western Greece. To measure indoor radon ioncentrations, CR-39 detectors were installed in randomly selected houses and were exposed :or about 3 months, during summer and winter. Also gamma spectroscopy measurements of he soil's radium content were performed. The indoor radon concentration levels varied from [7.6 to 750.4 Bq m-3, while the radium concentration of soil varied from 4.9 to 97.1 Bq m"3. Seasonal variation of the radon levels and the influence of house features and sou are liscussed.

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Modeling and measuring the indoor radon concentrations in high-rise buildings in Hong Kong

Cited by 27 publications

References 3 publications

Development of a model for radon concentration in indoor air

Development of a model for radon concentration in indoor air

An approach to assessing the probability of unsatisfactory radon in air-conditioned offices of Hong Kong

A survey of 222Rn concentrations in dwellings of the town of Metsovo in North-western Greece

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