Measurement of Radon and Thoron Concentration in Environment of the College of Science for Women in Baghdad University

Basim Khalaf Rejah; Shafeq Shakir Shafeq; Nidhala Hassan Kadhim

doi:https://doi.org/10.14445/22315381/IJETT-V34P215

Research Article | Open Access | Download PDF

Volume 34 | Number 1 | Year 2016 | Article Id. IJETT-V34P215 | DOI : https://doi.org/10.14445/22315381/IJETT-V34P215

Measurement of Radon and Thoron Concentration in Environment of the College of Science for Women in Baghdad University

Basim Khalaf Rejah, Shafeq Shakir Shafeq, Nidhala Hassan Kadhim

Citation :

Basim Khalaf Rejah, Shafeq Shakir Shafeq, Nidhala Hassan Kadhim, "Measurement of Radon and Thoron Concentration in Environment of the College of Science for Women in Baghdad University," International Journal of Engineering Trends and Technology (IJETT), vol. 34, no. 1, pp. 71-75, 2016. Crossref, https://doi.org/10.14445/22315381/IJETT-V34P215

Abstract

Presence of radon, thoron and their decay products in work place environment are considered a potential health hazard. Measurement of their levels is an important aspect to assess the threat they may pose to humans. Considering this their measurement from the building of collage of Science for Women, Baghdad University has been carried out using passive technique by using twin cups dosimeters. The indoor radon concentration varied from 17.37 Bqm-3 to 30.53 Bqm-3 with an average of 23.32 Bqm-3 while the thoron concentration in the same buildings varied from 6.1 to 32.87 Bqm-3 with an average of 18.98 Bqm-3 for a period from April to July 2015. The annual effective dose received by the inhabitants of these buildings varied from 0.74 to 1.47 mSv. The radon progeny levels in the buildings under study varied from 1.88 to 3.3 mWL with an average of 2.52 mWL, while the thoron progeny levels varied from 0.16 to 0.85 mWL with an average of 0.51 mWL for a period from April to July 2015.

Keywords

Radon; Thoron; progeny; SSNTD; dwellings; annual effective dose.

References

[1] G. Milic, L. Gulan, P. Bossew, B. Vuckovic and Z.S. Zunic, J Rom. Phys., 201358, 180.
[2] E.S. Armencea, A. Armencea, B. Burghele, A. Cucos, C. Malos and T. Dicu, J Rom. Phys., 2013, 58, 189.
[3] C.R. Cothern and W.L. Lappenbusch, J Health Physics 1986, 50, 33.
[4]G. Akerblom, P. Andersson and B. Clavensjo, J Radiat. Prot. Dosim. 1984, 7 (1-4), 49.
[5]I. Barnet, J Environ. Earth Sci. 2012, 66, 11.
[6] BasimKhalaf Rejah, "Measurement of Background Radioactivity in Sewage Sludge for Baghdad City Treatment Stations", Baghdad Science Journal, 2011, 8, 2, p.p. 439- 443.
[7]D.C. Thomas, K.G. McNeill and C. Dougherty, J Health Physics 1985 45,5.
[8] ICRP (1993) (International Commission on Radiological Protection) (Oxford: Pergamon Press) ICRP Publication No. 65 1993.
[9] K.P. Eappen and Y.S. Mayya, J Radiat Meas. 2004, 38, 5-17 (2004).
[10] Wafaa A., J Rad. Meas. 2002, 35, 207.
[11] S.A. Durrani and R. Ilic, J World Scientific, Singapore 1997 387.
[12] International Commission on Radiological Protection (2009). Statement on radon.
[13] UNSCEAR: Sources and Effectsof Ionizing Radiation. Report to the General Assembly withScientific Annexes, United Nations Scientific Committee on the Effects of Atomic Radiation, New York (2000).
[14] International Commission on Radiological Protection: The 2007 recommendations of theInternational Commission on Radiological Protection: Publication 103, Annals of ICRP, 2007, 37, 1.