Dependence of radionuclide migration, in the fruit cenosis in ordinary leached chernozem soil horizont, on the depth of its occurrence

Author: Mel’chenko A.I.

Reference: Gazette “ТРУДЫ КУБАНСКОГО ГОСУДАРСТВЕННОГО АГРАРНОГО УНИВЕРСИТЕТА“ (Proceedings of Kuban State Agrarian University), 2008

ISSN: 1999-1703

DOI:

Keywords: plant, vertical migration of 90sr, chernozem

Abstract: In the territory of All-Russian research institute of biological plant protection (Russian academy of agricultural sciences), in the field in orchard, difference in the vertical migration of radionuclides (90Sr) was studied in the soil layer of ordinary leached chernozem, depending on the depth of its original location.

URL: http://elibrary.ru/item.asp?id=11619543

BOND OF RADIONUCLIDES WITH THE COLLOID OF UNDERGROUND WATERS LOCATED WITHIN THE KARACHAI CONTAMINATION PLUME

Author: Novikov A.P., Kalmykov O.V., Myasoedov B.F., Ivanov I.A., Rovny S.I.

Reference: Gazette “ВОПРОСЫ РАДИАЦИОННОЙ БЕЗОПАСНОСТИ“ (Issues on radiation safety), 2009

ISSN: 1816-9643

DOI:

Keywords: radionuclides, groundwater, colloids, migration

Abstract: Outcomes of the study are presented that concern bond strength of radionuclides with colloid particles of different sizes obtained from underground waters of the Karachai contamination plume. Using the method of photon-correlation spectroscopy, it was found out that the total content of colloid in deeper horizons is an order of magnitude higher than that in near-surface horizons. At that, an average particle radius also increases with depth. The main portion of Pu, Am, and Cm is bound with colloids (40-90 %). Portions of U and Np in the composition of colloid particles are smaller (2-20 %), and this fact determines their higher migration mobility in underground waters. An insignificant number of actinides is bond with large colloids with a size from 450 nm tо 200 nm. A significant part of actinides in water occurring at a depth of 40 m and deeper is in the fraction of colloid particles with a size from 200 nm tо 50 nm. In water of these horizons not more than 30 % of Pu and Am is bound with smaller size colloids (from 10 kDa tо 50 nm). As it gets closer to the surface, a number of actinides in the fraction of nano-particles (50 nm – 10 kDa) grows up to 50 %. Using the method of selective leaching, the bond strength of actinides with the colloid of underground waters from the Karachai contamination plume was investigated. Using the alpha-track analysis, it was shown that microdistribution of alpha-emitting radionuclides in the colloid is uniform. It was demonstrated that radionuclides, which are found in the colloid of underground waters sampled from three wells with various chemical composition, are in the forms that differ in the degree of their solubility. U and Np in colloid are bound only with highly soluble and mobile groups of compounds; these radionuclides were not identified in the sparingly soluble residue. While Pu and Am are, on the contrary, found in the colloid primarily in sparingly soluble forms. Am, to a greater extent, is bound with surface organo-metallic complexes. Pu was mainly found in the fraction of amorphous oxides.

URL: http://elibrary.ru/item.asp?id=11991986

Migration of 137 Cs in forest ecosystems, pollution as a result of the Chernobyl disaster

Author:  Maradudin I.I.

Reference: journal “ЛЕСНОЙ ВЕСТНИК“ (Bulletin of Moscow State University of Forestry ), 2005

ISSN: 1727-3749

DOI:

Keywords: migration, 137cs, biogeocenoses, soil, plants

Abstract: Migration of 137cs in forest biogeocenoses. Observes the migration in three different conditions:  Bio morphogenetic properties of forest structures, fertility and moisture level of forest soils. Observes soil and plants.

URL: http://elibrary.ru/item.asp?id=11528755

Radionuclides and heavy metals in groundwater of coal field “Karazhyra” (East Kazakhstan)

Author: Artamonova E.N.

Reference: Altai State University, 2004

ISSN:

Keywords: groundwater, coal field, radionuclides, migration, ecology

Abstract: Describes the migration of both natural and anthropogenic radionuclides, as well as heavy metals, in groundwater. 

URL: http://www.dissercat.com/content/radionuklidy-i-tyazhelye-metally-v-podzemnykh-vodakh-ugolnogo-mestorozhdeniya-karazhyra-vost

CHERNOBYL AND ENVIRONMENT

Author: Spiridonov S.I., Aleksakhin R.M., Fesenko S.V., Sanzharova N.I.

Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2007

doi:10.1134/S0869803107020099

Keywords: migration of radionuclides, effects on biota, ecosystem, public exposure

Abstract: Describes the basic system of migration of radionuclides in the environment, assessing the scale of effects of radiation on the biota. Evaluates the significance of the consequences of radioactive contamination on natural ecosystems in terms of the formation of public exposure.

URL: http://elibrary.ru/item.asp?id=9495348

About perspective actions for decrease in a damage from radioactive pollution of wood ecosystems in territory of the Russian Federation as a result of failure on the Chernobyl atomic power station

Author: Zheleznov A., Homiakov N.

Reference:  Gazette  “ТЕХНОЛОГИИ ГРАЖДАНСКОЙ БЕЗОПАСНОСТИ“ (CIVIL TECHNOLOGY SECURITY), 2009

ISSN: 1996-8493

Keywords: RADIOACTIVE POLLUTION,   WOOD ECOSYSTEMS,   RADIOISOTOPE’S MIGRATION,   ACTIONS FOR DAMAGE DECREASE

Abstract:  In article the analysis of features of migration of radionuclides in wood ecosystems is carried out, and also the most significant problems demanding the decision at realisation of actions for decrease of damage from radioactive pollution of territory of the Russian Federation are defined.

URL: http://elibrary.ru/item.asp?id=13004620

Prediction of vertical distribution of 137CS and 90SR in forest soils in Belarus

Title: Prediction of vertical distribution of 137CS and 90SR in forest soils in Belarus

Author: Perevolotsky A.N., Perevolotskaya T.V.

Reference: Radiation Biology. Radioecology, (Russian: “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ“) 52(6), December 2012

ISSN: 0869-8031

DOI: 10.1134/S0869803112060082

Keywords: forecast, migration, 137Cs, 90Sr, specific activity, supply of radionuclides, distribution of radionuclides , quasi-factor, soil

Abstract: The article analyzes the distribution of 137cs and 90sr in vertical profile onto the soil of forest ecosystem, in Belorussia, in various conditions: content of moisture, composition of woody vegetation.  Describes various types of vertical migration of radionuclides under the surface of soil.

URL: http://lekarius.ru/external/paper/36946

A long-term field study on the effect of acid irrigation and compensatory liming on the transport of Chernobyl-derived radiocesium in a forest soil

• Title: A long-term field study on the effect of acid irrigation and compensatory liming on the transport of Chernobyl-derived radiocesium in a forest soil

Author: Schimmack, W. / Bunzl, K. / Kreutzer, K.

Reference: Science of The Total Environment, 198 (3), p.271-285, May 1997

doi: 10.1016/S0048-9697(97)05454-5

Keywords: Radiocesium; Chernobyl; Forest soil; Migration; Acid rain; Liming

Abstract: The effect of acid irrigation with and without liming on the vertical transport of Chernobyl-derived ¹³⁴Cs in the soil was investigated in a Norway spruce stand by field experiments. For this purpose seven plots with different treatments were established. After 5 years of observation to detect differences in the residence half-time’s of ¹³⁴Cs in the various soil horizons with respect to the control sites, the plots were sampled at 18 individual pits. No effect on the residence half-time of ¹³⁴Cs was observed for ‘normal’ irrigation (pH 5.3) as compared to the control in all organic horizons.

URL: http://www.sciencedirect.com/science/article/pii/S0048969797054545