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

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

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2016 by IJETT Journal
Volume-34 Number-2
Year of Publication : 2016
Authors : Basim Khalaf Rejah, Shafeq Shakir Shafeq, Nidhala Hassan Kadhim
DOI :  10.14445/22315381/IJETT-V34P215

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), V34(2),71-75 April 2016. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

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.

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