MEASURING CONCENTRATION RADON AND THORON GASES IN SOIL OF THE BABYLON GOVERNORATE

In environmental science the terms Radon (222Rn) and thoron (220Rn) are usually taken to refer to radon isotope family, and have same chemical properties. They are an alpha particle emitter. Thoron`s average activity concentration in soil gas and ground-level outside air is comparable to that of radon. In our research the concentration of radon and thoron gases were measured in the soil of Babylon, included two depths 10 cm 15 cm represented 18 selected locations. The range concentration of radon in case depth 10 cm between 33.8-9690 Bq/m3 where in case of 15 cm between 406-8970 Bq/m3 in range concentration of thoron for depth 10 cm between 33.8-9690, while indepth 15 cm between 183-7520 Bq/m3.