Measurement of the natural radiological activity of soil samples of some general education schools in Al-Qadisiyah Governorate

Abstract

Right now, specific radioactivity of soil chose from Diwaniya Governorate was estimated. Ten samples of this soil were gathered. These samples were from some general education schools, where the samples were taken from diversified sites. to define the specific activity from the radioactivity 232Th, 238U and 40K, Iodide sodium system activated with Thallium 3"×3" had been used for this aim, finally for Thorium 232Th ranged between (BLD-14.652) Bq.kg−1, average (5.334) Bq.kg−1. for Uranium 238U, it is ranged between (BLD-26.187) Bq.kg−1, average (8.364) Bq.kg−1, where the result showed that radio activity of potassium 40K ranged between (346.823-536.704) Bq.kg−1 with a rate of (450.482) Bq.kg−1, The radium equivalent values ranged between (33.951-68.194) Bq.kg−1, average (50.68) Bq.kg−1, the absorbed dose rate in air ranged between (18.386- 33.995) nGy.h−1, average (25.962) nGy.h−1, External hazard index ranged through (0.091-0.184), average (0.136), Internal hazard index ranged through (0.091-0.226), average (0.159). activity concentration index ranged between (0.293-0.538), average (0.409), the observed results were below the International recommended limits.

The impact of construction materials on indoor air quality and radiation levels in Al-Shatra, Dhi-Qar, Iraq

“…According to European Commission (EC, 1999), an index Iγ of excessive external gamma radiation by surface material is linked to the annual dose. The index's values Iγ ≤ 1 consent to 0.3 mSvy -1 , whereas Iγ ≤ 3 consent to 1 mSvy -1 [14,18,19]. Therefore, all the I γ values were well below the critical standards and do not provide a substantial risk to human health.…”

“…Internal (H in ) and external hazard indices (H ex ) can be measured using the following formulas [13,14].…”