Van Dung Nguyen, Thi Lan Anh Vu, Thi Ha Thu Dang, Ha Phuong Vu and Thi Cuc Nguyen 2022. Study on the dispersion of radon (²²²Rn) in geological objects in Bat Xat district, Lao Cai province, Northern Vietnam. Vietnam Journal of Science, Technology and Engineering. 64, 4 (Dec. 2022), 32-35. DOI:https://doi.org/10.31276/VJSTE.64(4).32-35.