| Title | Distribution of pre- and post-Chernobyl radiocaesium with particle size fractions of soils |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2005 |
| Authors | Spezzano, Pasquale |
| Journal | Journal of Environmental Radioactivity |
| Volume | 83 |
| Pagination | 117-127 |
| ISSN | 0265931X |
| Keywords | article, cesium, cesium 134, cesium 137, cesium isotope, Cesium Radioisotopes, Chernobyl accident, Chernobyl Nuclear Accident, Deposition, Environmental radioactivity, fallout, Nuclear Reactors, particle size, Particle size analysis, radiation dose distribution, Radioactive, Radioactive Fallout, radioactivity, Radiocaesium, Radioisotopes, Size fractions, soil chemistry, soil pollutant, Soil Pollutants, Soil pollution, Soil samples, Soils, Ukraine |
| Abstract | The association of radiocaesium with particle size fractions separated by sieving and settling from soils sampled eight years after the Chernobyl accident has been determined. The three size fractions were: <2 μm, 2-63 μm and >63 μm. 137Cs in the soil samples was associated essentially with the finer size fractions, which generally showed specific activities 3-5 times higher than the bulk samples. Activity ratios of 134Cs/ 137Cs in the clay-sized fractions appear to be lower with respect to the corresponding values in bulk soil samples. This result indicates that some differences still exists in the particle size distribution between 137Cs originating from nuclear weapons, which has been in the soil for decades after fallout, and 137Cs coming from the Chernobyl accident, eight years after the deposition event. This behaviour could be related to "ageing" processes of radiocaesium in soils. © 2005 Elsevier Ltd. All rights reserved. |
| Notes | cited By 23 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-20444417417&doi=10.1016%2fj.jenvrad.2005.02.002&partnerID=40&md5=7fbdeee2405abeeabf3fe5f9fef795ae |
| DOI | 10.1016/j.jenvrad.2005.02.002 |
| Citation Key | Spezzano2005117 |
