Temporal variations of 7Be and 210Pb activity concentrations in the atmospheric aerosols during 2018–2019 in Beijing, China and their correlations with meteorological parameters

Huan Wang, Qinghua Meng, Yongzhong Ma, Yun Lou, Bin Bai, Weijie Zhu, Yuxia Kong, Hongfang Wang, Zechen Feng, Shuguang Zhai, Jun Yu