Abstract:
:Biweekly atmospheric depositions of (137)Cs were measured in Rokkasho, Aomori, Japan from March 2000 to March 2006 to study recent (137)Cs deposition. Although the deposition level was generally lower than the detectable limit, deposition samples collected in spring occasionally had measurable levels of (137)Cs. The annual (137)Cs deposition from 2001 to 2005 was 0.04-0.69 Bq m(-2) with a mean value of 0.27 Bq m(-2). Depositions of insoluble Al, Fe and Ti were strongly correlated with the (137)Cs deposition, suggesting that suspension of soil particles was the main source of the recent (137)Cs deposition. Asian dust events were coincident with some of the significant (137)Cs depositions in spring. It was found that the ratios of (137)Cs/Al and Fe/Al could be used as indices for discriminating Asian dust from suspension of the local surface soil. Backward trajectory analysis suggested southern Mongolian and northeastern China regions as sources of the significant (137)Cs depositions.
journal_name
J Environ Radioactjournal_title
Journal of environmental radioactivityauthors
Akata N,Hasegawa H,Kawabata H,Chikuchi Y,Sato T,Ohtsuka Y,Kondo K,Hisamatsu Sdoi
10.1016/j.jenvrad.2007.01.007subject
Has Abstractpub_date
2007-01-01 00:00:00pages
1-9issue
1eissn
0265-931Xissn
1879-1700pii
S0265-931X(07)00031-8journal_volume
95pub_type
杂志文章abstract::Weekly measurements of air 7Be concentrations (n = 769) were performed in the years 1992-2010 in Bialystok (north-eastern Poland) using gamma spectrometry. The arithmetic mean (AM) concentration of 7Be was 2.51 mBq m-3, and the median (M) was 2.24 mBq m-3 (range 0.47-7.81 mBq m-3). The observed 7Be concentrations were...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2018.02.011
更新日期:2018-07-01 00:00:00
abstract::On 11 March 2011, the magnitude-9.0 earthquake and a substantial tsunami struck off the northeast coast of Japan. The Fukushima nuclear power plants were inundated and stricken, followed by radionuclide releases outside the crippled reactors. Provisional regulation values for radioactivity in food and drink were set o...
journal_title:Journal of environmental radioactivity
pub_type: 历史文章,杂志文章
doi:10.1016/j.jenvrad.2011.08.008
更新日期:2012-09-01 00:00:00
abstract::The ability to predict the consequences of an accidental release of radionuclides relies mainly on the level of understanding of the mechanisms involved in radionuclide interactions with different components of agricultural and natural ecosystems and their formalisation into predictive models. Numerous studies and dat...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章,评审
doi:10.1016/j.jenvrad.2007.10.011
更新日期:2008-05-01 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
abstract::This paper is aimed at presenting and discussing the methodologies implemented in state-of-the-art models for predicting the physical processes of radionuclide migration through the aquatic environment, including transport due to water currents, diffusion, settling and re-suspension. Models are briefly described, mode...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章,评审
doi:10.1016/j.jenvrad.2008.05.006
更新日期:2009-09-01 00:00:00
abstract::The transfer of 90Sr to rice plants following its acute ground deposition was examined experimentally in a greenhouse. Lysimeters were flooded after being filled with the soil monoliths from 12 paddy fields. A solution of 90Sr was applied to the standing water in the flooded lysimeters at the pre-transplanting stage o...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2006.12.008
更新日期:2007-01-01 00:00:00
abstract::The rehabilitation of radioactively contaminated sites is an activity generally regarded with suspicion by the community. This is certainly the case for Australian Aboriginal traditional landowners. This paper describes the historical background to, and the successful development and implementation of, a consultation ...
journal_title:Journal of environmental radioactivity
pub_type: 历史文章,杂志文章
doi:10.1016/j.jenvrad.2004.03.018
更新日期:2004-01-01 00:00:00
abstract::Today, radioecology covers a broad scientific field; from the source to long term environmental impact from ionizing radiation. To summarize key challenges within radioecology, the present paper focuses upon knowledge gaps related to processes, mechanisms and variables contributing most to the overall uncertainties in...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2009.04.005
更新日期:2009-12-01 00:00:00
abstract::The elevated radioactivity of the thermal waters of Buda Thermal Karst (BTK), Hungary is known and studied since the beginning of the 20th century. In the recent studies, the anomalous 222Rn/226Ra ratios have drawn the attention to the existence of local 222Rn source. Biogeochemical precipitates (i.e. biofilms) in spr...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2019.01.020
更新日期:2019-05-01 00:00:00
abstract::Data collected by the International Monitoring System (IMS) during 2009-2012 were used to study influence of precipitation and relative humidity on changes in (7)Be concentrations in atmosphere. The significant decrease in (7)Be concentrations, corresponding to measurements collected by stations located within Intertr...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2015.03.014
更新日期:2015-06-01 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::The hepatic parameters (contents of glycogen, total lipids, nuclear and cytoplasmic proteins, DNA and RNA, fructose-6-phosphate, water, lipid peroxidation products, as well as activities of succinate dehydrogenase and glucose phosphate isomerase), radiometric data, and the relative population abundance of the pygmy wo...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2019.01.002
更新日期:2019-04-01 00:00:00
abstract::The transfer of (137)Cs into fish in seepage and drainage lakes from 1988 to 1992 was analysed using linear regression. Empirical results for (137)Cs in lake water and fish were used to calculate concentration factors (CFs). In the drainage lakes the CF decreased during the study period by 9% per year whereas in the s...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2010.04.004
更新日期:2010-08-01 00:00:00
abstract::The potential radiological impact of releases from a low-level radioactive waste (Category A waste) repository in Dessel, Belgium on the local fauna and flora was assessed under a reference scenario for gradual leaching. The potential impact situations for terrestrial and aquatic fauna and flora considered in this stu...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2016.06.002
更新日期:2016-10-01 00:00:00
abstract::EXPURT, NRPB's model for calculating external gamma doses in inhabited areas, was originally developed in the mid-1980s. Deposition on surfaces in the area, the subsequent transfer of material between different surfaces or its removal from the system, and dose rates in various locations from material on the different ...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2004.07.009
更新日期:2006-01-01 00:00:00
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::Tritium is most commonly generated as a by-product of nuclear reactors. As such, environmental concentrations are typically only reported near regions of interest, and background concentrations in areas unaffected by anthropogenic disturbance are not well characterized. To provide information on background levels of t...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2018.10.003
更新日期:2018-12-01 00:00:00
abstract::Contamination of soils with radioisotopes of caesium (Cs) is of concern because of their emissions of harmful β and γ radiation. Radiocaesium enters the food chain through vegetation and the intake of Cs can affect the health of organisms. Arbuscular mycorrhizal (AM) fungi form mutualistic symbioses with plants throug...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2014.12.001
更新日期:2015-03-01 00:00:00
abstract::One hundred ninety-eight groundwater wells were sampled to measure the (222)Rn activity in the region between Montreal and Quebec City, eastern Canada. The aim of this study was to relate the spatial distribution of (222)Rn activity to the geology and the hydrogeology of the study area and to estimate the potential he...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2014.05.021
更新日期:2014-10-01 00:00:00
abstract::Most available measurement methods and protocols for radioactive materials are focused on the use of high-precision sampling and analysis and do not consider the practicality of these techniques in the case of large-scale emergencies involving high numbers of samples and measurements. The experience gained after the F...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2020.106265
更新日期:2020-09-01 00:00:00
abstract::Over the past decades, radioanalytical methods for environmental monitoring of plutonium (Pu) isotopes from contaminated soils were developed to respond in case of a nuclear accident but also for routine analyses. In this paper we prove the possibility of on-site analysis of plutonium using alpha particle spectrometry...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2020.106414
更新日期:2020-11-01 00:00:00
abstract::Comparative analysis of doses to the reference species of freshwater biota was performed for the following water bodies in Russia or former USSR: Chernobyl NPPs cooling pond, Lakes Uruskul and Berdenish located in the Eastern Urals Radioactive Trace, Techa River, Yenisei River. It was concluded that the doses to biota...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2011.07.013
更新日期:2012-06-01 00:00:00
abstract::137Cs bioaccumulation and retention in seven different marine animal species, including crustaceans, mollusc larvae, and fish larvae were compared under different temperature conditions (10 °C, 18 °C and 25 °C). Replicate animals were experimentally exposed to 0.5 nM 137Cs dissolved in filtered seawater for 3 days, an...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2019.02.005
更新日期:2019-06-01 00:00:00
abstract::The RTMOD system is presented as a tool for the intercomparison of long-range dispersion models as well as a system for support of decision making. RTMOD is an internet-based procedure that collects the results of more than 20 models used around the world to predict the transport and deposition of radioactive releases...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/s0265-931x(01)00017-0
更新日期:2001-01-01 00:00:00
abstract::In the present study, the roles of atmospheric wind profiles in the neutral atmosphere and surface roughness parameters in a complex terrain were examined to determine their impacts on radon ((222)Rn) dispersion from an actual uranium mine ventilation shaft. Simulations were completed on (222)Rn dispersion extending f...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2013.12.003
更新日期:2014-03-01 00:00:00
abstract::This paper presents radon diffusion coefficient values and radon resistance values determined for 650 widely-used waterproofing materials divided into 29 groups according to their chemical composition. The reliability of two different approaches for determining the radon resistance is discussed, and differences betwee...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2019.106019
更新日期:2019-11-01 00:00:00
abstract::In this study the commonly used f-value for the 1001.03 keV (0.835 ± 0.004%) energy transition of the 234mPa was re-evaluated due to an obvious consistent overestimation of the 238U activity concentration. Different calibration protocols, samples' matrices and geometries, and gamma-ray spectrometers were exploited in ...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2017.01.018
更新日期:2017-04-01 00:00:00
abstract::The ambient dose equivalent rate is caused by ionizing radiation of radionuclides in the atmosphere and on the ground surface as well as by cosmic radiation. Seasonal and diurnal variations of the ambient dose equivalent rate (ADER) in the ground level air are influenced by the concentration of 222Rn daughters. The 22...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/s0265-931x(02)00057-7
更新日期:2003-01-01 00:00:00
abstract::Earthworms are the most suitable biological indicators of radioactive pollution because they are the parts of nutritional webs, and are present in relatively high numbers. Four months old Eisenia fetida were exposed to different doses of gamma radiation, namely 1, 2, 3, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55 & 60 G...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2014.10.010
更新日期:2015-02-01 00:00:00
abstract::In July 2015, the currently only active monitoring station for atmospheric 85Kr measurements in the southern hemisphere went operational at the Commonwealth Scientific and Industrial Research Organization (CSIRO) in Adelaide, Australia. Here, this new data is presented and combined with measurements from historic moni...
journal_title:Journal of environmental radioactivity
pub_type: 杂志文章
doi:10.1016/j.jenvrad.2020.106451
更新日期:2020-12-01 00:00:00