MUTHANNA JOURNAL OF ENGINEERING AND TECHNOLOGY (MJET)   ASSESSMENT OF NATURAL RADIOACTIVITY LEVELS AND RADIATION HAZARDS FOR BUILDING MATERIALS USED IN SOME SELECTED PROVINCES IN IRAQ Volume 3, Issue 2, Dec 2015, Pages 43-50  DOI: 10.52113/3/mjet/2015-3-2/43-50 Research Article: Raid R. Al-Omari Civil Engineering Department, Al-Nahrain University, Baghdad, IRAQ,   Hussein Mandeel Ashour  Civil Engineering Department, … Continue reading ASSESSMENT OF NATURAL RADIOACTIVITY LEVELS AND RADIATION HAZARDS FOR BUILDING MATERIALS USED IN SOME SELECTED PROVINCES IN IRAQ