title: [Effects of ammonium concentration on Cs-137 fixation rate in soil suspensions].
abstract: Collapse of interlayer spaces of soil clay minerals can by caused by ammonium cation in concentrations as low as 10(-3) mol/l. The collapse leads to substantial decrease in the soil ability to fix 137Cs. This effect is reversible and the soil fixation ability recovers after the ammonium concentration decrease.
authors.affiliation: Institute of Experimental Meteorology, SPA Typhoon, Obninsk, 249029 Russia. bulgakov@typhoon.obninsk.org
authors.forename: A A
authors.initials: AA
authors.lastname: Bulgakov
authors.forename: A V
authors.initials: AV
authors.lastname: Konoplev
authors.forename: V E
authors.initials: VE
authors.lastname: Popov
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry; D002118:Calcium / Q000032:analysis; D002498:Centrifugation; D002588:Cesium Radioisotopes / Q000032:analysis*; D000077215:Clay; D005374:Filtration; D008274:Magnesium / Q000032:analysis; D011188:Potassium / Q000032:analysis; D000644:Quaternary Ammonium Compounds / Q000032:analysis* / Q000494:pharmacology; D012964:Sodium / Q000032:analysis; D012987:Soil / Q000032:analysis*; D012990:Soil Pollutants, Radioactive / Q000032:analysis*
chemical_list: D000538:Aluminum Silicates; D002588:Cesium Radioisotopes; D000644:Quaternary Ammonium Compounds; D012987:Soil; D012990:Soil Pollutants, Radioactive; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium; D000077215:Clay