Mỏ đất hiếm chứa hàmlượng cao các nhân phóng xạ tự nhiên ( 238U, 232Th và 40K) thuộc xã Mường Hum, Nậm Pung, huyện Bát Xát, tỉnh Lào Cai, là mỏ có trữ lượng tài nguyên đất hiếm lớn của Việt Nam sẽ được đưa vào khai thác, chế biến trong thời gian tới. Mời các bạn tham khảo! | 106 Journal of Mining and Earth Sciences Vol. 62 Issue 5 2021 106 - 115 Assessment of natural irradiation doses in rare earth mines of Muong Hum Bat Xat district Lao Cai province Dung Van Nguyen 1 Huan Dinh Trinh 2 Tuong Van Phan 2 1 Faculty of Environmental Hanoi University of Mining and Geology Vietnam 2 Geological Division on Radioactive and Rare Earth Element Vietnam ARTICLE INFO ABSTRACT Article history The rare earth mine containing high concentrations of natural Received 01st July. 2021 radionuclides 238U 232Th and 40K in Muong Hum commune Nam Pung Accepted 16th Sept. 2021 Bat Xat district Lao Cai province a mine with large reserves of rare Available online 31st Oct. 2021 earth resources in Vietnam will be exploited and processed in the near Keywords future. The activity of natural radionuclides in the environment of air Effective annual dose soil water and effective annual dose are important parameters in Muong Hum assessing the impact of radiation on the environment when the mine goes into operating and processing rare earth ore. Investigating and Radioactivity determining radioactivity in soil water and plants at Muong Hum rare Radioactive environment earth mine by means of radioactive gas measurement RAD-7 gamma Rare earth mines. radiation dose rate DKS-96 sample analysis using an ICP-MS mass spectrometer will be performed in this study. The results showed that some soil samples had radionuclides activity 238U 232Th higher than the allowed standard. The annual effective dose value in the region is times higher than the world average mSv year . The obtained results are the basis for monitoring the impact of the radioactive environment and providing solutions to minimize the effects of radioactive substances on the ecological environment when the mine goes into mining and processing of rare earth ores. Copyright 2021 Hanoi University of Mining and Geology. All rights reserved. _ Corresponding author E - mail nguyenvandung@ DOI
