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Opoku-Ntim I, Andam AB, Roca V, Fletcher JJ, Akiti TT. INDOOR RADON CONCENTRATION AND RISK ASSESSMENT IN SOME DWELLINGS OF OBUASI, MINING TOWN. RADIATION PROTECTION DOSIMETRY 2020; 188:30-37. [PMID: 31711205 DOI: 10.1093/rpd/ncz254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/20/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
222Rn concentration indoors was measured in 40 dwellings in the Obuasi municipality, a gold-mining town in the Ashanti Region of Ghana using the LR 115 type II strippable detectors for the two major seasons in Ghana, rainy and dry. The detectors were placed in the bed rooms of dwellers for 6 months each. Average indoor radon concentration varied from 63.9 to 364.9 Bqm-3 with a mean of 152.2 ± 10.9 Bqm-3 in the rainy season and 26.1-119.0 Bqm-3 with a mean of 50.5 ± 3.9 Bqm-3 in the dry season. The effective dose of 3.90 ± 0.3 mSvy-1 for the rainy season and for the dry season, effective dose of 0.6 mSvy-1 were recorded. The seasonal variation of 222Rn concentration indoors showed higher values in the rainy season than the dry season. A dependence was observed between the type of building materials used in building and the indoor radon level.
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Affiliation(s)
- Irene Opoku-Ntim
- Department of Nuclear Sciences and Applications, School of Nuclear and Allied Sciences, P.O. Box AE1, Atomic, Ghana, Accra
- Department of Physics, Nuclear Application Centre, NNRI, GAEC, P.O. Box LG80, Legon, Ghana, Accra
| | - Aba Bentil Andam
- Department of Physics, Nuclear Application Centre, NNRI, GAEC, P.O. Box LG80, Legon, Ghana, Accra
| | - Vicenzo Roca
- Dipartimento di Fisica, Università degli Studi di Napoli Federico II, Naples, Italy
- Dipartimento di Fisica, Sezione di Napoli, Istituto Nazionale di Fisica Nucleare (INFN), Naples, Italy
| | - J J Fletcher
- Department of Physics, Nuclear Application Centre, NNRI, GAEC, P.O. Box LG80, Legon, Ghana, Accra
| | - T T Akiti
- Department of Physics, Nuclear Application Centre, NNRI, GAEC, P.O. Box LG80, Legon, Ghana, Accra
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Soares C, Alencar I, Guedes S, Takizawa R, Smilgys B, Hadler J. Alpha spectrometry study on LR 115 and Makrofol through measurements of track diameter. RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2012.06.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bochicchio F, Ampollini M, Tommasino L, Sorimachi A, Tokonami S. Sensitivity to thoron of an SSNTD-based passive radon measuring device: Experimental evaluation and implications for radon concentration measurements and risk assessment. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2009.10.090] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Results of the first 5 years of a study on year-to-year variations of radon concentration in Italian dwellings. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2009.10.088] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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An evaluation of radial track etch rate in LR-115 detectors exposed to Fe ions by means of FT-IR spectrometry. RADIAT MEAS 2008. [DOI: 10.1016/j.radmeas.2008.04.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Palacios D, Sajo-Bohus L, Greaves E. Radon progeny distributions inside a diffusion chamber and their contributions to track density in SSNT detectors. RADIAT MEAS 2005. [DOI: 10.1016/j.radmeas.2005.06.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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An irradiation chamber for experimental studies on SSNTD response to alpha particles. RADIAT MEAS 2005. [DOI: 10.1016/j.radmeas.2004.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bochicchio F, Forastiere F, Farchi S, Marocco D, Quarto M, Sera F. Quality assurance program for LR 115 based radon concentration measurements in a case-control study: description and results. RADIAT MEAS 2003. [DOI: 10.1016/s1350-4487(03)00124-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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