Measurement of Radon Exhalation Rate, Annual Effective Dose and Radium Activity from Marine Sediments Samples Collected From Abian Beach, Aden Gulf, Yemen

Abstract

The behavior of radon in marine sediments collected from Abian beach, Abian Governorate, Aden Gulf, Yemen, was studied by using Alpha Guard PQ2000 PRO radon detector. The activity concentration of radon in the sediments was found to be ranging from 64.84 to 166.93±11.85Bq.m-3 with mean value 103.88±8.80Bq.m-3. The radium content in the sediments ranged from 20.01 to 56.06Bqkg-1 with mean value 33.51Bqkg-1 , while the area exhalation rate of 222 Rn ranged from 6.73 to 18.49Bqm-2 h-1 with mean value 11.22Bqm-2 h-1 also the mass exhalation rate of 222 Rn ranged from 0.151 to 0.424Bqkg-1 h-1 with mean value 0.253Bqkg-1 h-1 , respectively for the studied samples of marine sediments. The annual effective dose was found to be ranging from 1.63 to 4.21mSvy-1 , with an average of 2.62mSvy-1. Average value of radon concentrations from marine sediments samples were compared with other literature values.