Radon monitoring for short term exposures in indoor air

Oppon, O. C.; Azimi-Garakani, D.; Tommasino, L.; Torri, G.; Aziz, Siti Fatimah Nur Abdul

doi:10.1016/1359-0189(88)90217-8

Cited by 10 publications

(10 citation statements)

References 9 publications

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“…The radon monitor used in this work was an envelope-type [4] passive dosemeter. Its principle of operation is based on the exposure of bare track detector material in air.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…At the end of the exposure period, the LR-115 sheets were chemically etched in 2.5 .V NaOH solution at 60 °C for 110 min and then spark counted [5]. The radon concentrations were calculated using the sensitivity coefficient of e = 2.03 ± 0.07 tracks cm-2 per kBq h nr3 determined separately, following a calibration exposure in a radon chamber [4].…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Although both the individual and the collective doses of radiation from radon are higher than those from almost any other sources [1], the correlation between the incidence of lung cancer and high background radon concentration has not yet been fully established, nor has any satisfactory rela tion been found between the occurrence of earthquakes and volcanic eruption and anomalous concentrations of radon [2], There is a variety of radon detectors and dosemeters for indoor and outdoor radon measurements. Damage track detectors have proved to be very successful for their ability to integrate over long periods of time, ranging from weeks to several months [3], However, for screening surveys, short-term exposure periods as little as one week are always required [4], This paper describes …”

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confidence: 99%

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Short-Term Radon Measurements in the Workplace

Azimi-Garakani¹

1992

Indoor Built Environ

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A novel envelope-type radon monitor has been used for short-term (as little as 1 week) radon concentration measurements in a workplace environment. The commercially available LR-115 type II damage track detector was used in this study and the chemically etched sheets were spark counted. The measurements were made over a period of 1 year in a workplace consisting of three adjacent rooms situated in the lower ground level of a multistorey office building in Rome, Italy. The variations of the radon concentration are from ~ 20 to ~ 300 Bq m^-3 with averages of 130, 81 and 73 Bq m^-3 for the three different rooms resulting in annual doses of ~ 3.8, ~ 2.4 and ~ 2.2 mSv, respectively.

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“…The radon monitor used in this work was an envelope-type [4] passive dosemeter. Its principle of operation is based on the exposure of bare track detector material in air.…”

Section: Experimental Methodsmentioning

confidence: 99%

Section: Experimental Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Short-Term Radon Measurements in the Workplace

Azimi-Garakani¹

1992

Indoor Built Environ

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“…The passive radon samplers used in this study were the envelopetype radon monitors described previously [5,6]. The monitor con sists of a commercially available bare LR-115 Type II (Kodak-Pathé, Sevran, France) damage track detector with an area of 90 x 120 mm.…”

Section: Detectorsmentioning

confidence: 99%

“…At the end of the exposure periods, the LR-115 sheets were chemically etched in 2.5 M sodium hydroxide solution at 60°C for 110 min and then spark counted. The radon concentrations were calculated using the sensitivity coefficient of s = 2.03 ± 0.07 tracks-crrr2 perkBq-h-m~3 determined separately with a calibration exposure in a radon cham ber [5], KARGER. …”

mentioning

confidence: 99%

Prediction of Seasonal Radon Concentration from Weekly Screening Measurements

Azimi¹

1996

Indoor Built Environ

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The reliability of short-term radon measurements for as little as 1 week for predicting seasonal and annual radon concentrations is described. The study is based on continuous weekly radon measurements in an indoor environment made over a period of 1 year. Statistical analysis of the results shows that the probability that a weekly measurement represents the yearly radon concentration is >0.47 only during winter and spring, a figure little changed for a monthly measurement. Probabilities >0.55 are obtained when the averaging period is 6 weeks but only in the winter and spring. Overall the results indicate that short-term radon measurements appear to represent the year-long average only if the measurements are made during winter and spring.

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An intercomparison of different passive radon detectors

Azimi-Garakani

1993

Nuclear Tracks and Radiation Measurements

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Radon monitoring for short term exposures in indoor air

Cited by 10 publications

References 9 publications

Short-Term Radon Measurements in the Workplace

Short-Term Radon Measurements in the Workplace

Prediction of Seasonal Radon Concentration from Weekly Screening Measurements

An intercomparison of different passive radon detectors

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