Spatial Variability and Cesium-137 Inventories in Native Forest
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2004
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| _version_ | 1876485071246983168 |
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| author | A. C. Andrello |
| author_facet | A. C. Andrello |
| contents | Spatial Variability and Cesium-137 Inventories in Native Forest A. C. Andrello C. R. Appoloni Física, Astronomía y Matemáticas With the nuclear fission discovery and development of nuclear weapons in 1940s, artificial radioisotopes wereintroduced in the environment. This contamination is due to worldwide fallout by superficial nuclear tests realizedfrom early 1950s to late 1970s by USA, former URSS, UK, France and China. One of theses radioisotopesthat have been very studied is cesium-137. Cesium-137 has a half-life of 30.2 years and its biological behavioris similar to the potassium. The behavior in soil matrix, depth distribution, spatial variability and inventoriesvalues of cesium-137 has been determinate for several regions of the world. In Brazil, some research groupshave worked on this subject, but there are few works published about theses properties of cesium-137. The aimof this paper was study the depth distribution, spatial variability, and inventory of cesium-137 in native forest.Two native forests (Mata 1 and Mata UEL) were sampling in region of Londrina, PR. The results shows thatthere is a spatial variability of 40% for Mata 1 and 42% for Mata UEL. The depth distribution of cesium-137 fortwo forests presented a exponential form, characteristic to undisturbed soil. Cesium-137 inventory determinatefor Mata 1 was 358 Bq m¡2 and for Mata UEL was 320 Bq m¡2. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434523 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3A Vol.34 |
| format | Artículo científico |
| id | redalyc_46434523 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Spatial Variability and Cesium-137 Inventories in Native Forest A. C. Andrello Física, Astronomía y Matemáticas Spatial Variability and Cesium-137 Inventories in Native Forest A. C. Andrello C. R. Appoloni Física, Astronomía y Matemáticas With the nuclear fission discovery and development of nuclear weapons in 1940s, artificial radioisotopes wereintroduced in the environment. This contamination is due to worldwide fallout by superficial nuclear tests realizedfrom early 1950s to late 1970s by USA, former URSS, UK, France and China. One of theses radioisotopesthat have been very studied is cesium-137. Cesium-137 has a half-life of 30.2 years and its biological behavioris similar to the potassium. The behavior in soil matrix, depth distribution, spatial variability and inventoriesvalues of cesium-137 has been determinate for several regions of the world. In Brazil, some research groupshave worked on this subject, but there are few works published about theses properties of cesium-137. The aimof this paper was study the depth distribution, spatial variability, and inventory of cesium-137 in native forest.Two native forests (Mata 1 and Mata UEL) were sampling in region of Londrina, PR. The results shows thatthere is a spatial variability of 40% for Mata 1 and 42% for Mata UEL. The depth distribution of cesium-137 fortwo forests presented a exponential form, characteristic to undisturbed soil. Cesium-137 inventory determinatefor Mata 1 was 358 Bq m¡2 and for Mata UEL was 320 Bq m¡2. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434523 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3A Vol.34 |
| title | Spatial Variability and Cesium-137 Inventories in Native Forest |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46434523 |