Sorption and desorption experiments using stable cesium: considerations for radiocesium retention by fresh plant residues in Fukushima forest soils

Abstract We conducted sorption experiments with stable cesium ( 133 Cs) solution in different organic matter samples, aiming to understand the of radiocesium 134 Cs and 137 initial throughfall by fresh plant residues (e.g., needles, wood, bark from Japanese cedar trees) Oi horizon forests Fukushima. Among wattle tannin sorbed relatively large amounts Cs, whereas wood cellulose powder small amounts. In contrast, samples containing clay minerals showed much higher sorption. also desorption experiments, suggested that on were mobile.