Investigating the effects of NORM from oil/gas industries on the public internal exposure

Naturally occurring radioactive materials (NORMs) are found in all raw materials with variousconcentration in the minerals. The radionuclides and tend to remain in the rock formation but radium tendsto dissolves in the formation water. Human activities involving extraction of many natural resources (such asuranium mining, oil and gas industry, etc.) can redistribute and concentrate these radionuclides to situationsthat have potential long-term hazards for members of the public due to higher radiation exposures. NORMsresult in increased exposures higher than the normal background levels. This paper presents the results ofcalculational model to investigate the internal exposure of NORM for oil/gas industry from the receptorenvironment (crops, foods, radioactive aerosols). The results from NORMALYSA modeling tool show that thetotal dose calculation from ingestion of crops and aquatic food is substantially from radium decay series. Thisstudy conducted on the technical aspects of dose absorbed from the contaminated croplands which can be usedto radiation protection of NORM.

کلیدواژه ها:

Absorbed Dose ، Internal Exposure ، Radionuclide Concentrations