USE RAD-7 TECHNICAL TO DETERMINE RADON CONCENTRATIONS IN DIFFERENT LIQUID SAMPLES IN THI-QAR MARKETS, IRAQ

The study aims to determine radon-222 ( 222 Rn) concentrations in the four types of liquid samples that are collected in Thi-Qar Governorate, Iraq.Samples were classified into four groups, including bottled water, juice liquid, Coca-Cola, and milk liquid.The measurements were done using a RAD-7 detector manufactured in the USA.As well as the annual effective dose (AED) and the cancer risk (CR) due to ingestion of radon-222 from all liquid samples of the present study.The average values of radon-222 concentrations for bottled water, juice liquid, Coca-Cola, and milk liquid in unit mBq/L were 42.209, 82.100, 89.808, and 130.922, respectively.Moreover, the average values of AED for four samples in unit µSv/y were 0.141, 0.052, 0.057, and 0.042, respectively, while CR×10 -6 were 0.094, 0.199, 0.218, and 0.161, respectively.The measured radon-222 concentrations and AED with CR due to ingestion of four liquid samples of the present study were within the global average safe limits.Therefore, liquid samples in Thi-Qar markets that were investigated in this work do not pose a radiological risk to adult humans.