226Ra Concentration and 222RnExhalation Rate in Sediments of Euphrates River andSome ItsBranches in Thi-Qar Governorate -Southern Iraq

Abstract

Many radionuclides in sediments transference are contributing to globalcollective doses. Therefore, monitor of the pollution in sediments was usedwidespread and trace pollution sources. In this study, SSNTDs LR-115 type II areused to provide database about 226Ra concentration and 222Rn exhalation rate interms of area and mass in sediments of Euphrates river and Its some branches inThi-Qar governorate. This data can be used as a reference data for future studiesand it may be useful for complete radioactivity mapping for Iraq republic.226Ra concentration in sediments of Euphrates river and its some branches inThi-Qar governorate varied between (0.742-2.379) Bq/kg with the average valueis (1.498) Bq/kg, while the area exhalation rate of 222Rn varied between (62.52-200.34)mBq.m-2.h-1 with the average value is (126.17) mBq.m-2.h-1, also the massexhalation rate of 222Rn varied between (5.61-17.97) mBq.kg-1.h-1 with the averagevalue is (11.32) mBq.kg-1.h-1. 226Ra concentration in this study was included thelimit recommended by OECD. Also, The results compared with the average of theworld and some other studies