A comprehensive global dataset of atmospheric 7Be and 210Pb measurements: air concentration and depositional flux

Naturally occurring beryllium-7 (⁷Be, T_1/2: 53.3 days) and lead-210 (²¹⁰Pb, T_1/2:22.3 y) have been widely utilized as tracers to investigate Earth' surface and atmospheric processes. Here we present a global dataset of air concentration and depositional flux measurements of atmospheric ⁷Be and ²¹⁰Pb made by a large number of researchers and laboratories. Data were collected from published papers between 1955 and early 2020. It includes the annual surface air concentrations data of ⁷Be from 367 sites and of ²¹⁰Pb from 270 sites, the annual depositional flux of ⁷Be from 279 sites, and of ²¹⁰Pb from 602 sites. When available, appropriate metadata have also been summarized, including geographic location, sampling date, methodology, annual precipitation, and references. In addition, the ratios of 7Be to 210Pb and deposition velocities of aerosols calculated from 7Be and 210Pb data are also presented.