Environmental radon control in the 700 m underground laboratory at JUNOChenyang Cui, Jie Zhao, Gaosong Li, Yongpeng Zhang, Cong Guo, Zhenning Qu, Yifang Wang, Xiaonan Li, Liangjian Wen, Miao He and Monica SistiEur. Phys. J. C, 84 2 (2024) 120DOI: https://doi.org/10.1140/epjc/s10052-024-12474-6