CALCULATION OF RADIOLOGICAL HAZARD FOR SOIL SAMPLES COLLECTED FROM RIGHT COAST OF NINEVEH-IRAQSHAYMAA AWAD KADHIM , ALAA M. MOHAMED , MUSHTAQ ALI HUSSEIN , BAN HUSSEIN ALI AND SHATHA F. ALHOUS
In the current study, the activity of 20 soil samples collected from five schools in Nineveh, Iraq has been investigated. The Sodium iodide detector NaI (Tl) was used to calculate the concentration of 226Ra, 232Th and 40K. The average concentration of 226Ra, 232Th and 40K (ppm) has been found to be 1.53, 1.32 and 3.02% respectively. Radiological hazard of representative level index (RLI), activity utilization index (AUI), concentration index IC, Alpha index (IÃ¡ ), annual effective dose (AEDE), excess life-time cancer risk (ELCR) have been estimated. From results, the radiological hazards have been lower than permeation level recommended by UNSCEAR. On the other side, the ELCR was being 1.2819*10-3, it was below internationally recommended limits by UNSCEAR. Radiological hazard were statistically measured to get the relation between all the parameters. The Pearson correlation (PC) and statistically significant (p-value <0.05) were estimated. In this study, the area is considered safe and does not pose a health risk.