RESULTS OF MONITORING RADON (222Rn; 220Rn) GAS AND GAMMA DOSE RATE OVER TIME AT MUONG HUM RARE EARTH MINE, LAO CAI
Keywords:Gamma dose rate, Radon concentration(222Rn), Thoron concentration(220Rn), Rare earth, Lao Cai
This paper investigates the characteristics of gamma radiation dose rate variation and the concentration of radioactive gas radon (222Rn; 220Rn) over time at the environmental radiation monitoring station of the Muong Hum rare earth mine. Using statistical methods to process data of gamma dose rate, radioactive gas concentration of radon (222Rn; 220Rn) over time at the monitoring station. The results of the study help to correct for diurnal variation and annual mean of radioactive gas concentrations and gamma dose rates when calculating mean effective dose and annual effective dose.
The results of the radioactive environment survey in 2021 at the environmental radiation monitoring station at the Muong Hum rare earth mine with the corrected numbers of radon and thoron are 1.65 and 1.97 respectively
 Karahan G., Bayulken A. (2000), Assessment of gamma dose rates around Istanbul (Turkey), J Environ Radioact; 47:213-21.
 Erees F.S., Aközcan S., Parlak Y., Çam S. ( 2006), Assessment of dose rates around Manisa (Turkey), Radiation Measure; 41:598 601.
 Duong N. T., Van Hao D., Duong D. T., Phan T. T., Le Xuan H. (2021), Natural radionuclides and assessment of radiological hazards in MuongHum, Lao Cai, Vietnam, Chemosphere, 270, 128671.
 Duong V. H., Nguyen T. D., Kocsis E., Csordas A., Hegedus M., Kovacs T. (2021), Transfer of radionuclides from soil to Acacia auriculiformis trees in high radioactive background areas in North Vietnam, Journal of Environmental Radioactivity, 229, 106530.
 Van H. D., Nguyen T. D., Peka A., Hegedus M., Csordas A.,Kovacs T. (2020), Study of soil to plant transfer factors of 226Ra, 232Th, 40K and 137Cs in Vietnamese crops, Journal of Environmental Radioactivity, 223, 106416.
 Azeez H.H., Mansour H.H., Ahmad S.T. (2019), “Transfer of natural radioactive nuclides from soil to plant crops’’, Applied Radiation and Isotopes,147,pp.152–158.
 Cengiz G.B.(2019), “Transfer factors of 226Ra,232Th and 40K from soil to pasture-grass in the northeastern of Turkey”, Journal of Radioanalytical and Nuclear Chemistry,319,pp. 83–89.
 UNSCEAR (2000), Sources and effects of ionizing radiation, United Nations Scientific Committee on the Effects of Atomic Radiation, New York, 2000.
 ICRP Publication 82(2000). Protection of the Public in Situations of Prolonged Radiation Exposure; Elsevier Science Ltd.: Amsterdam, The Netherlands, 2000.
 Tran Binh Trong, Nguyen Phuong, Trinh Dinh Huan (2005). Report on Investigation of the current state of radioactive environment in the mines of Dong Pao, Then Sin - Tam Duong - Lai Chau province, Muong Hum in Lao Cai province, Yen Phu in Yen Bai province, Thanh Son in Phu Tho province, An Diem, Ngoc Kinh - Middle of Quang Nam Province, Archives of the Geological Federation of Rare Radiation.
 Bui Tat Hop, Trinh Dinh Huan, Nguyen Phuong (2010), Overview of rare earths in Vietnam, Journal of Geology, series A 2010, pp 447–456.
 Nguyen Van Dung, Trinh Dinh Huan, Dao Dinh Thuan (2020), Evaluation of changes in environmental radioactive composition in copper ore mining and processing activities in Sin Quyen mine, Lao Cai province, Journal of Science and Technology of Vietnam, vol. 62, issue 8, pages 8-12.
 Vietnamese Standard 9414 (2012), Environmental geological investigation, gramma method.
 Vietnamese standards: TCVN 9415 (2012), Environmental geological investigation and assessment - method to determine equivalent dose.
 Vietnamese standards: TCVN 9416 (2012), Investigation and assessment of environmental geology by radioactive gas method.
 Tran Anh Tuan et al (2012), Researching the scientific basis to identify areas with natural irradiation levels potentially harmful to humans for survey and assessment. Science and technology project at ministerial level (2011 - 2012), Ministry of Natural Resources and Environment.
 Ministry of Science and Technology (2012). Circular "Regulations on control and safety in occupational and public irradiation", No. 19/2012/TT-BKHCN, Hanoi.
 International Atomic Energy Agency (IAEA), Technical Reports Series No.295, Measurement of Radionuclides in Food and the Environment, A Guidebook, 2006.
 ICRP Publication 103 (2007), The 2007 Recommendations of the International Commission on Radiological Protection, Elsevier Science Ltd.: Amsterdam, The Netherlands, 2007.
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