PROBLEM TO BE SOLVED: To provide a radioactive nuclide acquisition net useful for protection of crops from contamination by radioactive nuclides such as radioactive cesium, radioactive strontium, radioactive cobalt and radioactive manganese, and decontamination of various contaminants by the radioactive nuclides, and the like, by using a simple operation without requiring a dyeing process and the like, and to provide an aqueous coating agent composition capable of forming a radioactive nuclide acquisition layer on the surface of a film and a cloth.SOLUTION: There is provided a radioactive nuclide acquisition net which is a split fiber nonwoven fabric having a two-layer laminate structure, formed by orthogonally laminating split fiber webs (A) and (B) made of polyvinyl alcohol in vertical and horizontal directions via a polyvinyl alcohol-based adhesive layer, in which an adhesive constituting the adhesive layer is a polyvinyl alcohol-based adhesive containing polyvinyl alcohol of 50 mass% or more as an adhesiv
