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 surfaces are modelled. The model has been updated to take account of more recent experimental data on the transfer rates between surfaces and to make it more flexible for use in assessing dose rates following an accidental release. EXPURT is a compartmental model and models the transfer of material between the surfaces using a set of first order differential equations. It enables the impact of the decontamination of surfaces on doses and dose rates to be explored. The paper describes the EXPURT model and presents some preliminary results obtained using it.
journal_name
J Environ Radioactjournal_title
Journal of environmental radioactivityauthors
Jones JA,Singer LN,Brown Jdoi
10.1016/j.jenvrad.2004.07.009subject
Has Abstractpub_date
2006-01-01 00:00:00pages
314-29issue
2-3eissn
0265-931Xissn
1879-1700pii
S0265-931X(05)00224-9journal_volume
85pub_type
杂志文章abstract：:In the framework of a (222)Rn screening campaign that was carried out in 58 public secondary schools in Galicia (NW Spain), the largest radon-prone area in the Iberian Peninsula, a positive correlation between indoor (222)Rn concentration and outdoor gamma exposure rate was obtained. A new approach to the data acquisi...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2010.06.009
更新日期：2010-11-01 00:00:00
abstract：:Ore is considered as an important source of many elements such as the iron, phosphorus, and uranium. Concerning the natural radionuclides, their concentrations vary from an ore to other depending on the chemical composition of each site. In this work, two phosphate ores found in East of Algeria have been chosen to ass...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2010.02.008
更新日期：2010-05-01 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：: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：:High concentrations of radionuclides and toxic elements in gold mine tailings facilities present a health hazard to the environment and people living near that area. Soil and water samples from selected areas around the Princess Mine dump were collected. Soil sampling was done on the surface (15 cm) and also 100 cm be...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.12.026
更新日期：2016-03-01 00:00:00
abstract：:Hunters and their families were one of the most exposed subpopulations in Sweden after the Chernobyl nuclear power plant accident in 1986. In this pilot study we used existing registries and whole-body measurements to develop algorithms to calculate lifetime effective doses and collective doses to some hunters in Swed...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2017.06.017
更新日期：2017-10-01 00:00:00
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 r...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2016.11.017
更新日期：2017-02-01 00:00:00
abstract：:The exposure to radon-decay products is of great concern both in dwellings and workplaces. The model to estimate the lung dose refers to the deposition mechanisms and particle sizes. Unfortunately, most of the dose data available are based on the measurement of radon concentration and the concentration of radon decay ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.02.013
更新日期：2015-05-01 00:00:00
abstract：:In order to assess how environmental factors are affecting the distribution and migration of radioiodine and plutonium that were emitted from the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident, we quantified iodine and (239,240)Pu concentration changes in soil samples with different land uses (urban, paddy, d...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.12.022
更新日期：2016-03-01 00:00:00
abstract：:The paper presents the results of a study on radiological impacts resulting from a zircon sand processing plant located in the North-Eastern part of Italy. Activity concentrations of radionuclides found in materials associated with this industrial process are presented as well as the results of the assessment of the a...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2005.01.010
更新日期：2005-01-01 00:00:00
abstract：:Phosphogypsum board is a popular construction material used for housing panels in Korea. Phosphogypsum often contains (226)Ra which decays into (222)Rn through an alpha transformation. (222)Rn emanated from the (226)Ra-bearing phosphogypsum board has drawn the public concern due to its potential radiological impacts t...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2004.08.010
更新日期：2005-01-01 00:00:00
abstract：:Processes of vertical and lateral migration lead to gradual reduction in contamination of catchment soil, particularly its top layer. The reduction can be considered as natural attenuation. This, in turn, results in a gradual decrease of radiocesium activity concentrations in the surface runoff and river water, in bot...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2017.06.019
更新日期：2018-06-01 00:00:00
abstract：:Establishment of (137)Cs inventories is often used to gain information on soil stability. The latter is crucial in mountain systems, where ecosystem stability is tightly connected to soil stability. In-situ measurements of (137)Cs in steep alpine environments are scarce. Most studies have been carried out in arable la...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2010.02.005
更新日期：2010-05-01 00:00:00
abstract：:137Cs and 40K activity concentrations and stable elements have been measured in Clavariadelphus truncatus collected in Mexico. Iron-chelating compounds of siderophore-type was also studied in the species. 137Cs and 40K were determined in soil and mushroom samples with HpGe gamma-ray spectrometry. Macro- and micro-elem...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2007.03.003
更新日期：2007-01-01 00:00:00
abstract：:An automated unit was developed for the in-situ extraction of radiocaesium ((137)Cs and (134)Cs) from large volumes of seawater to achieve very low detection limits. The unit was designed for monitoring of Australian ocean and coastal waters, including at ports visited by nuclear-powered warships. The unit is housed w...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2015.08.015
更新日期：2016-01-01 00:00:00
abstract：:This paper presents the results of measurements of (137)Cs in soils in Pest County, Hungary. We investigated forty five soil monoliths from monitoring locations of a countrywide Soil Information and Monitoring System (SIMS) at depths of 0-30, 30-60, 60-90, 90-120 and 120-150 cm. The (137)Cs concentrations were determi...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2012.01.023
更新日期：2012-08-01 00:00:00
abstract：:Safety assessment is a tool which, by means of an iterative procedure, allows the evaluation of the performance of a disposal system and its potential impact on human health and the environment. Radionuclides from a deep geological disposal facility may not reach the surface environment until many tens of thousands of...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2005.05.001
更新日期：2005-01-01 00:00:00
abstract：:We investigated the variability of anthropogenic radionuclide content of the edible fractions of individual edible crabs (Cancer pagurus L.) and European lobsters (Homarus gammarus L.) caught commercially in the Sellafield offshore area. Sixteen female and 18 male crabs and 20 female and 17 male lobsters were selected...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/s0265-931x(00)00132-6
更新日期：2001-01-01 00:00:00
abstract：:In order to understand the influence of the Fukushima Daiichi nuclear power plant accident on the ecosystem in hilly and mountainous areas of Fukushima Prefecture, chronological changes in the levels of radiocesium in arthropod species were investigated. From 2012 to 2014, arthropods from different trophic levels were...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2016.07.017
更新日期：2016-11-01 00:00:00
abstract：:The results of the studies presented in the paper have shown that in the Upper Silesian Region in Poland, radon indoor concentration levels depend first of all on the geological structure of the subsurface layers. The essential factors influencing radon migration ability are the mining-induced transformations of a roc...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2005.02.009
更新日期：2005-01-01 00:00:00
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：:This paper describes a dynamic compartment model (K-BIOTA-DYN-M) to assess the activity concentration and whole body dose rate of marine biota as a result of a nuclear accident. The model considers the transport of radioactivity between the marine biota through the food chain, and applies the first order kinetic model...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2014.11.006
更新日期：2015-02-01 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：:As a consequence of therapeutic and diagnostic treatment of patients with thyroid diseases, 131I is introduced into the sewage system on a regular basis. This presents an opportunity to use the 131I as a tracer to study its partitioning and transport within a wastewater treatment plant (WWTP). In the case of nuclear a...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2017.07.008
更新日期：2017-11-01 00:00:00
abstract：:The European Commission's Joint Research Centre organizes proficiency tests (PT) on radon-in-water measurements. In order to optimize sampling, transport and measurement methods many tests and small scale proficiency tests have been performed. The waters from natural springs, wells were sampled on-site in glass bottle...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2018.11.012
更新日期：2019-02-01 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：:A shallow-land radioactive waste repository operated in boggy forest environment from 1963 to 1989. During the operation period, a considerable amount of technogenic radionuclides, in solidified state, was disposed into the vault established in the geological structure at the depth of up to 3m. Environmental monitorin...
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：:Rhenium (Re) mobility in agricultural soils was studied in order to obtain information relevant to (99)Tc mobility in soil-to-plant systems. Since water soluble Tc and Re are highly bioavailable, extraction of Re with water was carried out in addition to a total Re determination in the soils. The geometric means of to...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2007.11.007
更新日期：2008-06-01 00:00:00
abstract：:The ERICA project (environmental risks from ionising contaminants: assessment and management, EC contract no. FI6R-CT-2004-508847) concluded with the publication of two main outputs: the ERICA Integrated Approach to the assessment and management of environmental risks from ionising radiation, of which also introduces ...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2007.11.019
更新日期：2008-09-01 00:00:00
abstract：:A previous study on seabed sediments of the Bay of Cadiz (SW of Spain) enabled us to identify several relations between sedimentological variables and activity concentrations of environmental radionuclides such as (137)Cs, (226)Ra, (232)Th and (40)K. In this paper the study has been extended to a large neighbouring in...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2008.11.011
更新日期：2009-03-01 00:00:00
