Abstract:
:Data on biogeochemistry of thorium are rather limited. So far little is known about toxic effects of small amounts of the radionuclide on higher plants. In this study the uptake of thorium by wheat seedlings was measured by greenhouse experiments. Germination of wheat seeds for 6 days in the presence of thorium resulted in accumulation of the metal in all parts of the seedlings. When the Th-rich seedlings were transferred to normal soil and were grown there further for 7 days, Th concentrations in roots and leaves decreased significantly (in leaves the Th content decreased up to the level of Th in the control plants). In seeds, however, Th content remained unchanged. An increase of Th content in roots and seeds was also observed as a result of addition of thorium to soil but in this case the concentration of Th in leaves did not change. The accumulation of Th in plants affected the uptake of other elements including essential macro-nutrients. The most strongly affected part of the plants was leaf.
journal_name
J Environ Radioactjournal_title
Journal of environmental radioactivityauthors
Shtangeeva I,Ayrault S,Jain Jdoi
10.1016/j.jenvrad.2004.01.041subject
Has Abstractpub_date
2005-01-01 00:00:00pages
283-93issue
2-3eissn
0265-931Xissn
1879-1700pii
S0265-931X(05)00026-3journal_volume
81pub_type
杂志文章abstract::We investigated the vertical distribution of the soil-soil-solution distribution coefficients (Kd) of 125I, 137Cs, and 85Sr in organic-rich surface soil and organic-poor subsurface soil of a pasture and an urban forest near a spent-nuclear-fuel reprocessing plant in Rokkasho, Japan. Kd of 137Cs was highly correlated w...
journal_title:Journal of environmental radioactivity
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更新日期:2017-04-01 00:00:00
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journal_title:Journal of environmental radioactivity
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章,评审
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abstract::Fossil bones and sediments from different horizons of the Upper Miocene paleontological site of Platania, Drama-Greece were studied using 238U, 235U, 232Th series and 40K measurements obtained by γ-spectroscopy. Additionally, SEM and XRF analysis was applied to bone and sediment samples while a lithological analysis o...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2018.08.012
更新日期:2018-10-01 00:00:00
abstract::The influence of soil texture on the distribution and availability of (238)U, (230)Th, and (226)Ra in soils was studied in soil samples collected at a rehabilitated uranium mine located in the Extremadura region in south-west Spain. The activity concentration (Bqkg(-1)) in the soils ranged from 60 to 750 for (238)U, f...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2008.03.004
更新日期:2008-08-01 00:00:00
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2016.06.011
更新日期:2016-10-01 00:00:00
abstract::From late September to early October of 2017, the majority of European networks involved in environmental radiological monitoring - including the environmental monitoring system of the KFKI Campus in Budapest - detected 106Ru isotope of artificial origin in the atmosphere. The reported values higher than the minimum d...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2018.08.004
更新日期:2018-12-01 00:00:00
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章,meta分析
doi:10.1016/j.jenvrad.2006.03.003
更新日期:2006-01-01 00:00:00
abstract::Soil amendments with zeolite and vermiculite were expected to prevent radiocaesium (137Cs) dissolution and uptake from the soil by plants. In this study, we investigated how zeolite and vermiculite added to soil influence the radiocaesium fixation with ageing. Zeolite and vermiculite were mixed with soil (1 wt%) befor...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2019.02.011
更新日期:2019-07-01 00:00:00
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2017.02.002
更新日期:2017-05-01 00:00:00
abstract::The mechanism of biological activation by beta-emitting radionuclide tritium was studied. Luminous marine bacteria were used as a bioassay to monitor the biological effect of tritium with luminescence intensity as the physiological parameter tested. Two different types of tritium sources were used: HTO molecules distr...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2016.03.017
更新日期:2016-06-01 00:00:00
abstract::This work presents the last updated evaluations of the nuclear and decay data of the four radioxenon isotopes of interest for the Comprehensive Nuclear-Test-Ban Treaty (CTBT): Xe-131 m, Xe-133, Xe-133 m and Xe-135. This includes the most recent measured values on the half-lives, gamma emission probabilities (Pγ) and i...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2018.02.015
更新日期:2018-12-01 00:00:00
abstract::Soil gas 222Rn and 220Rn concentrations were measured at 18 locations in the Karkonosze-Izera Block area in southwestern Poland. Measurements were carried out in surface air and at sampling depths of 10, 40 and 80 cm. Surface air 222Rn concentrations ranged from 4 to 2160 Bq m(-3) and 220Rn ranged from 4 to 228 Bq m(-...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2006.11.001
更新日期:2007-01-01 00:00:00
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2008.06.002
更新日期:2010-06-01 00:00:00
abstract::Concentrations of naturally occurring radionuclides (226)Ra, (228)Ra and (40)K were determined in five most consumed vegetables in a high-level background radiation area (HLBRA) in the southwest region of Cameroon. A total of 25 foodstuff samples collected from Akongo, Ngombas, Awanda, Bikoué and Lolodorf rural distri...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2012.01.025
更新日期:2012-08-01 00:00:00
abstract::Aiming to determine the plutonium amount as well as its isotopic composition, in particular, in swipe samples for safeguards purposes, an analytical method was developed with a plutonium separation step based on extraction chromatography using 2 cm TEVA columns and detection with quadrupole ICP-MS applying an ultra-so...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2007.03.010
更新日期:2007-01-01 00:00:00
abstract::A novel biosorbent was prepared and applied for the removal of uranium from aqueous solution. A new immobilization method was studied and used to embed living yeast cells of Saccharomyces cerevisiae (2% w/v) by sodium sulfate (0.5 mol/L) based on saturated boric acid-alginate calcium cross-linking method. The swelling...
journal_title:Journal of environmental radioactivity
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journal_title:Journal of environmental radioactivity
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/s0265-931x(01)00085-6
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2012.10.001
更新日期:2013-02-01 00:00:00
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2018.01.009
更新日期:2018-04-01 00:00:00
abstract::Atmospheric (85)Kr concentration at Fukuoka, Japan was determined by an improved (85)Kr analytical method using liquid scintillation counting (LSC). An average value of 1.54 +/- 0.05 Bq m(-3) was observed in 2008, which is about two times that measured in 1981 at Fukuoka, indicating a 29 mBq y(-1) rate of increase as ...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2010.03.009
更新日期:2010-08-01 00:00:00
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journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2014.08.025
更新日期:2014-12-01 00:00:00
abstract::Terrestrial gamma dose rates show important spatial variations in France. Previous studies resulted in maps of arithmetic means of indoor terrestrial gamma dose rates by "departement" (French district). However, numerous areas could not be characterized due to the lack of data. The aim of our work was to obtain more p...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2014.10.002
更新日期:2015-01-01 00:00:00
abstract::The setting up of the Greek Stakeholders Group in the framework of the EC Food and Agriculture Restoration Management Involving Networked Groups (FARMING) project is described. The Group included members from more than 20 governmental and non-governmental organisations, having interest and/or responsibilities in the m...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2004.08.016
更新日期:2005-01-01 00:00:00
abstract::The Sidi Moussa lagoon, located in western coastal Morocco and ranked as a wetland of biological and ecological importance (Ramsar site), is contaminated due to its proximity to the industrial phosphate plants and other anthropogenic activities around it. This study was carried out to assess the current environmental ...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2020.106464
更新日期:2021-02-01 00:00:00
abstract::Radioactivity in some Tunisian thermo-mineral springs (11 hot mineral springs and one cold spring) has been determined for the first time in Tunisia using radiochemical separation procedures. The obtained results show that 238U activity concentrations vary between 1.5 and about 43 mBq/l. The measured activities of 234...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/s0265-931x(01)00153-9
更新日期:2002-01-01 00:00:00
abstract::The adsorption of Cs by montmorillonite and the effects of experimental conditions on adsorption were investigated by using (134)Cs as a radioactive tracer. Additionally, the Cs-adsorbed and the modified montmorillonite were analyzed by X-ray Diffractometer System (XRD) and Scanning Electron Microscopy (SEM). The resu...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2009.06.024
更新日期:2009-10-01 00:00:00
abstract::This paper reports the output of a consensus symposium organized by the International Union of Radioecology in November 2015. The symposium gathered an academically diverse group of 30 scientists to consider the still debated ecological impact of radiation on populations and ecosystems. Stimulated by the Chernobyl and...
journal_title:Journal of environmental radioactivity
pub_type: 共识发展会议,杂志文章
doi:10.1016/j.jenvrad.2016.03.021
更新日期:2016-07-01 00:00:00