Effect of cement factory exhaust on radiological contents of surrounding soil samples in Assuit Province,Egypt

In the present work,the natural radioactivity of surrounding soil samples collected from assuit cement factory (egypt) have been measured by using nai(tl) detector. gamma analysis for each sample along with the calculated specific activities shows that the average concentrations of ra-226,th-232 and k-40 were 31.44 ± 3.67 bq kg-1,39.77 ± 2.00 bq kg-1 and 113.23 ± 5.66 bq kg-1 respectively,where only the values of ra-226 and k-40 are lower than the worldwide average,while the average value of radium equivalent activity,absorbed gamma dose rate,external and internal hazard indices,gamma index,alpha index,indoor and outer door effective doses for each sample were 132.02 bq kg-1,43.27 ngy h-1,0.256,0.346,0.691,0.157,0.212 msv y-1 and 0.0572 msv y-1 respectively. all these values were found to be lower than the permissibility limit value. © penerbit universiti sains malaysia,2017.