Abstract：
:Air samples were taken at various locations around The University of Texas at Austin's TRIGA Mark II research reactor and analyzed to determine the concentrations of 37Ar, 41Ar, and 133Xe present. The measured ratio of 37Ar/41Ar and historical records of 41Ar releases were then utilized to estimate an annual average release rate of 37Ar from the reactor facility. Using the calculated release rate, atmospheric transport modeling was performed in order to determine the potential impact of research reactor operations on nearby treaty verification activities. Results suggest that small research reactors (∼1 MWt) do not release 37Ar in concentrations measurable by currently proposed OSI detection equipment.
journal_name
J Environ Radioactjournal_title
Journal of environmental radioactivityauthors
Johnson C,Biegalski SR,Artnak EJ,Moll E,Haas DA,Lowrey JD,Aalseth CE,Seifert A,Mace EK,Woods VT,Humble Pdoi
10.1016/j.jenvrad.2016.11.017subject
Has Abstractpub_date
2017-02-01 00:00:00pages
249-253eissn
0265-931Xissn
1879-1700pii
S0265-931X(16)30432-5journal_volume
167pub_type
杂志文章abstract：:Growing interest in the dynamics of floodplain evolution and the important role of overbank sedimentation on river floodplains as a sediment sink has focused attention on the need to document contemporary and recent rates of overbank sedimentation. The potential for using the fallout radionuclides ¹³⁷Cs and excess ²¹⁰...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2011.08.006
更新日期：2012-01-01 00:00:00
abstract：:Profiles of podzolic soil from boreal forests were sampled from eight sites in Finland and the distribution of (137)Cs in the soil layers was determined. In addition, (239,240)Pu and (241)Am were determined from two soil profiles taken at one sampling site. Inventories of (137)Cs in the soil profiles varied between 1....
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2012.08.012
更新日期：2013-02-01 00:00:00
abstract：:Representative large-scale soil sampling on a regular grid of step width about 1 km was carried out for the first time in the near zone of the Chernobyl accident (radius 36 km). An integrated map of terrestrial 90Sr contamination density in the 30 km exclusion zone (scale 1:200,000) has been created from the analysed ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/s0265-931x(00)00207-1
更新日期：2001-01-01 00:00:00
abstract：:During a preliminary survey at the area of an abandoned fertilizer plant, increased levels of radioactivity were measured at places, buildings, constructions and materials. The extent of the contamination was determined and the affected areas were characterized as controlled areas. After the quantitative and qualitati...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2010.07.002
更新日期：2010-12-01 00:00:00
abstract：:It is well known that the marine organisms are used as biological indicators for environmental pollution studies. Among these studies, the research on oxidative stress has been increasing in recent years. In this study, mussels (Mytilus galloprovincialis) and fish (Solea solea) samples were collected seasonally from İ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2018.03.018
更新日期：2018-09-01 00:00:00
abstract：:The methodology for estimating radiocaesium distribution between solid and liquid phases in lakes is applied for three prealpine lakes: Lake Constance (Germany), Lake Lugano (Switzerland) and Lake Vorsee (Germany). It is based on use of the exchangeable distribution coefficient and application of the exchangeable radi...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/s0265-931x(01)00075-3
更新日期：2002-01-01 00:00:00
abstract：:Incorporation of radiocesium by plants via root uptake appears to be affected by some of the exchangeable cations in the soil and/or pH of the soil. However, few studies have examined the relationship between 137Cs in trees and soil properties in the area surrounding the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2020.106276
更新日期：2020-09-01 00:00:00
abstract：:Over 50% of the wells in the Nambe region of northern New Mexico exceed the US Environmental Protection Agency's recommended drinking water standard of 20 microg l(-1) for 238U; the highest in the area was measured at 1,200 microg U l(-1). Uranium uptake was estimated in tomato (Lycopersicon esculentum), squash (Cucur...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/s0265-931x(01)00034-0
更新日期：2002-01-01 00:00:00
abstract：:The necessity to provide information about radionuclide concentrations in Arctic marine species has been heightened in recent years due to a number of accidents in Arctic regions involving nuclear vessels and the presence of a large number of potential radioactive contamination sources. The provision for such informat...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2006.02.008
更新日期：2006-01-01 00:00:00
abstract：:Uncertainties on the mathematical modelling of radon ((222)Rn) transport in an unsaturated covered uranium mill tailings (UMT) soil at field scale can have a great impact on the estimation of the average measured radon exhalation rate to the atmosphere at the landfill cover. These uncertainties are usually attributed ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.03.019
更新日期：2016-01-01 00:00:00
abstract：:Dose assessments typically consider environmental systems as static through time, but environmental disturbances such as drought and fire are normal, albeit infrequent, events that can impact dose-influential attributes of many environmental systems. These phenomena occur over time frames of decades or longer, and are...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2013.01.011
更新日期：2013-06-01 00:00:00
abstract：:Most models for transfers of radionuclides through the food chain typically assume that the radioactivity is initially deposited in chemically available forms. It is known, however, that releases of radionuclides in the form of hot particles may significantly influence their environmental transfers and uptake to the f...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2008.12.011
更新日期：2009-04-01 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
abstract：:The luminescence of quartz extracted from recently fired building material is known to detect doses of few mGy and can be successfully employed in the case of large scale radiation exposures due to nuclear accidents or terrorist acts. One brick and two tiles (50-80 years range) collected from an urban settlement were ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2005.10.001
更新日期：2006-01-01 00:00:00
abstract：:Vegetation-to-milk transfer coefficients for 137Cs, 90Sr and stable strontium were determined for cows grazing on two intensively managed lowland pastures and two Alpine pastures in Austria. The 90Sr transfer coefficient at the four pastures ranged from 0.0005 to 0.0012 dl-1 and correlated with the stable strontium tr...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/s0265-931x(00)00133-8
更新日期：2001-01-01 00:00:00
abstract：:The present paper describes the application of a state-of-the-art model to two lakes in central Italy (Trasimeno and Monterosi) for the assessment of migration parameters of (137)Cs and (90)Sr (migration velocity to sediment, transfer rates from sediment to water and to bottom sediment). Applications of a compartment ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2004.08.015
更新日期：2005-01-01 00:00:00
abstract：:Protection of the environment post-mining is a key objective of rehabilitation, especially where runoff and erosion from rehabilitated mine sites could potentially lead to contamination of the surrounding land and watercourses. As part of an overall assessment of the success of rehabilitation at the former Nabarlek ur...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2007.08.015
更新日期：2008-03-01 00:00:00
abstract：:A procedure for the determination of 90Sr in environmental water samples using Čerenkov radiation and low-level liquid scintillation counter Quantulus 1220 was applied and optimized. Low diffusion polyethylene vials, high performance glass counting vials and low potassium borosilicate glass vilas of 20 ml volume (all ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2017.01.021
更新日期：2017-04-01 00:00:00
abstract：:After the Great East Japan Earthquake and resulting Tsunami on March 11, 2011, serious accident of the Fukushima Dai-ichi Nuclear Power Plant has been occurred. Huge amounts of radionuclides were released in atmosphere and ocean. Japanese prefectural governments have carried out environmental radioactivity monitoring;...
journal_title：Journal of environmental radioactivity
pub_type： 历史文章,杂志文章
doi：10.1016/j.jenvrad.2011.09.003
更新日期：2012-09-01 00:00:00
abstract：:Fifty five soil samples collected in the Lithuania teritory in 2011 and 2012 were analyzed for (129)I, (137)Cs and Pu isotopes in order to investigate the level and distribution of artificial radioactivity in Lithuania. The activity and atomic ratio of (238)Pu/((239,24)0)Pu, (129)I/(127)I and (131)I/(137)Cs were used ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.09.020
更新日期：2016-01-01 00:00:00
abstract：:The Mulde River drains the former uranium mining areas in Saxony (Germany), which has led to a large-scale contamination of the river and the adjacent floodplain soils with radionuclides of the uranium decay series. The objective of the investigation is to quantify the long-term effect of former uranium mining activit...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.02.024
更新日期：2015-06-01 00:00:00
abstract：:Radon concentrations were continuously measured outdoors, in the living room and in the basement at 10 min intervals for a month. Radon time series were analyzed by comparing algorithms to extract phase space dynamical information. The application of fractal methods enabled exploration of the chaotic nature of radon i...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2003.10.007
更新日期：2004-01-01 00:00:00
abstract：:The nuclear accidents at Chernobyl and Fukushima released large amounts of (137)Cs radionuclides into the atmosphere which spread over large forest areas. We compared the (137)Cs concentration distribution in different parts of two coniferous forest ecosystems (needle litter, stems and at different depths in the soil)...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2016.04.024
更新日期：2016-09-01 00:00:00
abstract：:In most studies quantifying the migration parameters - apparent migration velocity and apparent dispersion coefficient - of radionuclides in the soil by model calculations, these parameters are determined for undisturbed soils. For soils disturbed by ploughing, however, no such data are available in the literature. Th...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2004.05.018
更新日期：2005-01-01 00:00:00
abstract：:The disequilibrium of the grandparent-daughter pair 210Pb (t1/2=22.3 years)-210Po (t1/2=138 days) has been used to estimate the export fluxes of particulate organic carbon in the ocean using particulate-matter-associated 210Po. 210Po is produced from 210Bi, not from 210Pb. The half-life of 210Bi (t1/2=5.01 days) is su...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2019.106024
更新日期：2019-11-01 00:00:00
abstract：:Radionuclides from the 1986 Chernobyl accident were released and dispersed during a limited period of time, but under widely varying weather conditions. As a result, there was a high geographical variation in the deposited radioactive fallout per unit area over Europe, depending on the released composition of fission ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.07.009
更新日期：2015-11-01 00:00:00
abstract：:Cesium-137 (137Cs) migration in the litter layer consists of various processes, such as input via throughfall, output via litter decomposition, and input from deeper layers via soil organism activity. We conducted litter bag experiments over 2 years (December 2014-November 2016) to quantify the inputs and outputs of 1...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2018.01.027
更新日期：2018-07-01 00:00:00
abstract：:We studied the very shallow coastal water off Iwaki City, Fukushima Prefecture, and investigated: (1) temporal variation in 137Cs concentrations; (2) particle-size distribution of sediments; and (3) the effect on variation by waves, component-fractionated concentration of radiocesium and mineral composition at three s...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2017.12.016
更新日期：2018-04-01 00:00:00
abstract：:The diffusion length of 222Rn in uraniferous waste rock was determined through a novel experiment. Large PVC columns were filled to different depths in the range from 0.5 m to 3.0 m with waste rock material from the Ranger uranium mine and the build-up of 222Rn activity concentration in the column headspace above the ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2020.106186
更新日期：2020-05-01 00:00:00
