Global dataset of fallout radionuclides in cryoconite

These data describe the activity concentrations of fallout radionuclides (137Cs, 241Am, 210Pb) in cryoconite and proglacial sediment samples collected on glaciers around the global cryosphere.本数据集记录了全球冰冻圈周边冰川上采集的冰尘（cryoconite）与冰缘沉积物样品中，沉降放射性核素（137Cs、241Am、210Pb）的活度浓度。