Exposure to indoor radon and natural gamma radiation in some workplaces at Algiers, Algeria.
Radon activity concentrations have been measured in 34 workplaces throughout Algiers nuclear research centre, in Algeria, during some periods between March 2007 and June 2013 using Electret ion chambers, nuclear tracks detectors and an AlphaGuard system. The indoor radon levels range from 2 to 628 Bq m(-3) with an average indoor concentration equals to 92 Bq m(-3), whereas the estimated outdoor radon concentrations range from 2 to 14 Bq m(-3) with an average value of 6 Bq m(-3). This study also focused on parameters affecting radon concentration levels such as ﬂoor number, ventilation and atmospheric parameters. Furthermore, the mean gamma rates have been measured in the different investigated locations and have been found to be varying between 33 and 3300 nSv h(-1). The annual effective dose for workers calculated using the appropriate equilibrium and occupancy factors is lower than the value recommended by International Commission on Radiological Protection in its Publication 103.
Laboratoire de Dosimétrie des Rayonnements Ionisants, Centre de Recherche Nucléaire d'Alger (CRNA), Algiers, Algeria aitzianemounir@yahoo.fr.
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Aït Ziane
Laboratoire de Dosimétrie des Rayonnements Ionisants, Centre de Recherche Nucléaire d'Alger (CRNA), Algiers, Algeria.
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Lounis-Mokrani
Laboratoire SNIRM, Université des Sciences et de la Technologie Houari Boumediene (USTHB), Algiers, Algeria.
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Allab
D000396:Air Pollutants, Radioactive / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D000462:Algeria; D001417:Background Radiation; D006801:Humans; D011834:Radiation Monitoring; D011886:Radon / Q000032:analysis*; D014691:Ventilation; D017132:Workplace
D000396:Air Pollutants, Radioactive; D011886:Radon