nonCciKeyword

radionuclide

9 record(s)

 

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From 1 - 9 / 9
  • This dataset includes individual passive detector measurements of radon Rn-222 in the air of artificial burrows, Rn-222 measurements by instrumentation in soil gas of interstitial soil pores and burrow air, gamma analyses results for soil samples and, soil moisture and temperature data. Estimates of absorbed dose rates to wildlife from exposure to natural background radionuclides are required to put estimates of dose rates arising from regulated releases of radioactivity and proposed benchmarks into context. These data are from a study conducted at seven sites in northwest England (comprising broadleaved and coniferous woodlands, scrubland and pastures). Passive track etch detectors were used to measure the Rn-222 concentrations in artificial burrows over a period of approximately one year (July 2009 to June 2010). Instrumented measurements of burrow air and soil pore gas were also conducted in October 2009. The data result from a study funded by NERC-CEH and the England & Wales Environment Agency. Full details about this dataset can be found at https://doi.org/10.5285/2641515F-5B76-445C-A936-1DA51BF365AD

  • This dataset presents the results of an initial sampling exercise conducted at a terrestrial site in northwest England in summer 2010. The following samples of terrestrial Reference Animals and Plants (RAPs) were obtained from an area of circa 0.4 km squared: Molinia caerulea (ICRP RAP Wild Grass defined as Poaceae); Picea sitchensis (ICRP RAP Pine Tree defined as Pinaceae); Apis spp., Bombus spp., Nomada spp. (ICRP RAP Bee defined as Apidea); Apodemus sylvaticus (ICRP RAP Rat defined as Muridae); Earthworms (species in the Family Lumbricidae as defined for the ICRP RAP Earthworm); Deer (belonging to the Family Anatidae (i.e. the ICRP RAP Deer). Soil samples were also collected from throughout the sampling area. All samples were analysed for multiple elements using ICP-MS/ICP-OES and most for gamma-emitting radionuclides. Results have been used to derive biota-soil concentration ratios. The ICRP have published their framework for radiation protection of the environment (ICRP Publication 108). This describes the use of RAPs as the basis for their framework. The RAPs are generalised to the taxonomic level of Family. Publication 108 presented dose coefficient values for the selected RAPs and also reviewed data on the effects of ionising radiation to suggest Derived Consideration Reference Levels for each RAP. In summer 2010 the ICRP released a further report on their protection framework for consultation. This report presented transfer parameter values (organism-media concentration ratios) for Reference Animals and Plants. The report also raised the possibility of identifying a series of sites where samples of each Reference Animal and Plant, and their different lifestages, could be collected and analysed. It was suggested that the resultant data would constitute a set of reference values analogous to approaches used by the ICRP for human radiological protection. Full details about this dataset can be found at https://doi.org/10.5285/e40b53d4-6699-4557-bd55-10d196ece9ea

  • Data comprise biological and ecological half-life values for marine, freshwater, terrestrial and riparian organisms. The database includes 1908 biological half-life values for 52 elements across a range of wildlife groups (marine, freshwater, terrestrial and riparian). The compilation of values from a range of sources was conducted by an international working group under the auspices of an International Atomic Energy Agency programme. Full details about this dataset can be found at https://doi.org/10.5285/b95c2ea7-47d2-4816-b942-68779c59bc4d

  • Following the Fukushima accident in March 2011, grass samples were collected from 42 sites around Great Britain during April 2011. Iodine-131 was measurable in grass samples across the country with activity concentrations ranging from 10 to 55 Bq per kg dry matter. Concentrations were similar to those reported in other European countries. Rainwater and some foodstuffs were also analysed from a limited number of sites. Of these, I-131 was only detectable in sheep's milk (c. 2 Bq/kg). Caesium-134, which can be attributed to releases from the Fukushima reactors, was detectable in six of the grass samples (4-8 Bq/kg dry matter); 137Cs was detected in a larger number of grass samples although previous release sources (atmospheric weapons test and the 1986 Chernobyl and 1957 Windscale accidents) are likely to have contributed to this. All data and information for this sampling are available from this record. The data result from collaboration between CEH and the University of Stirling. Full details about this dataset can be found at https://doi.org/10.5285/1a91c7d1-ec44-4858-9af2-98d80f169bbd

  • Data comprise concentrations of elements in ashed fish sampled from lakes in the English Lake District in 2012 and 2013. Fish were collected from three lakes (Windermere, Bassenthwaite Lake and Derwent Water) by the Centre for Ecology & Hydrology (CEH) Lake Ecosystems group. Fish species collected were Roach (Rutilus rutilus), Perch (Perca fluviatilis), Ruffe (Gymnocephalus cernuus), Brown trout (Salmo trutta), Pike (Esox lucius) and Vendace (Coregonus albula). All samples were ashed prior to analysis by ICPMS or ICPOES to determine elemental concentrations. Full details about this dataset can be found at https://doi.org/10.5285/ed90df1b-462c-46bb-afbd-59794fb03f6b

  • Data comprise radiocaesium concentrations in soil, vegetation, wildlife and fungi analysed from samples collected from throughout Great Britain after the 1986 Chernobyl accident by the Centre for Ecology & Hydrology (CEH), formerly the Institute of Terrestrial Ecology (ITE). National level vegetation surveys were conducted in May 1986, October 1986 and Spring 1987. More intensive surveys of vegetation (grass and heather) and wildlife (grouse, fox, etc.) in restricted areas were carried out in Cumbria, Wales and North Yorkshire in 1989, 1990, 1991 and 1993. Surveys of fungi were carried out between 1994 and 1997. The data are suitable for interpolation to create spatially variable surfaces suitable for input into models. Full details about this dataset can be found at https://doi.org/10.5285/d0a6a8bf-68f0-4935-8b43-4e597c3bf251

  • Data comprise radionuclide concentrations in soils and a range of terrestrial vertebrate species (reptiles, small mammals and birds) sampled in the Chernobyl Exclusion Zone (CEZ) between 1999 and 2008. Reptiles were collected in 1999, 2000, 2001, 2003 and 2007, birds, bats, and small mammals were collected in 2004, 2005, 2007 and 2008. Dose rate data are provided for one study, both as ambient dose rate measurements and also as recorded by thermoluminescent dosimeters attached to small mammal species. The isotopes measured include: Americium-241, Caesium-134 and 137, Cobalt-60, Europium-154 and 155, Potassium-40, Plutonium-238, -239 and -240, Strontium-90. The data were used to assess the concentration of radioactive contamination in soil, consequent uptake of radionuclides by wildlife living in the CEZ and to test prediction of the ERICA Tool assessment model. The data were used to assess the uptake of radionuclides by wildlife living in the CEZ and to derive transfer parameters, and also to test predictions of the assessment model the ‘ERICA Tool’. Full details about this dataset can be found at https://doi.org/10.5285/518f88df-bfe7-442e-97ad-922b5aef003a

  • [THIS DATASET HAS BEEN WITHDRAWN]. Please note - this dataset is not current. For the most recent version, please search for the dataset titled 'Post Chernobyl surveys of radiocaesium in soil, vegetation, wildlife and fungi in Great Britain'. Data comprise radiocaesium concentrations in soil, vegetation, wildlife and fungi analysed from samples collected from throughout Great Britain after the 1986 Chernobyl accident by the Centre for Ecology & Hydrology (CEH), formerly the Institute of Terrestrial Ecology (ITE). National level vegetation surveys were conducted in May 1986, October 1986 and Spring 1987. More intensive surveys of vegetation (grass and heather) and wildlife (grouse, fox, etc.) in restricted areas were carried out in Cumbria, Wales and North Yorkshire in 1989, 1990, 1991 and 1993. Surveys of fungi were carried out between 1994 and 1997. The data are suitable for interpolation to create spatially variable surfaces suitable for input into models. Full details about this dataset can be found at https://doi.org/10.5285/7a5cfd3e-0247-4228-873d-5be563c4ee3b

  • Data comprise elemental and radionuclide concentrations in freeze-dried Mediterranean plants, seeds and oven dried soil. The samples were collected in June 2014 along a transect located in the Monfragüe National Park which is within the province of Cáceres, western Spain (start: N 33° 49' 47.2'', W 006° 01' 55.4'', end: N 390 49'46.8'', W 0060 02' 05.1'' (geocentric World Geodetic System 1984 (GPS WG 884)). Thirty plant species (Agrostis pourretii; Campanula rapunculus; Taraxacum sp.; Taraxacum officinale; Rumex scutatus; Hypericum perforatum; Schoenoplectus pungens; Erica umbellata; Phillyrea angustifolia; Myrtus communis; Cytisus sp.; Vitis vinifera subsp. Sylvestris; Crataegus monogyna; Daphne gnidium; Quercus ilex; Ruscus aculeatus; Olea europaea subsp. Europaea; Hordeum murinum; Pistacia terebinthus; Acer monspessulanum; Ficus carica; Cistus ladanifer; Eryngium campestre; Carlina vulgaris; Asparagus acutifolius; Viburnum tinus; Tamarix gallica; Jasminum fruticans; Rubia peregrine; Trifolium campestre) and three soil samples were collected and analysed by ICPMS (Inductively Coupled Plasma Mass Spectrometry) or ICPOES (Inductively Coupled Plasma Optical Emission Spectroscopy) to determine their elemental concentrations. Seeds from six of the plant species were also collected and analysed. Plant samples of sufficient mass (n=16) and the three soil samples were also analysed for selected gamma emitting radionuclides (Be-7, Cs-137 and K-40). The work described here was conducted under both the COMET framework (Fission-2012-3.4.1-604794) (http://www.comet-radioecology.org/) and the TREE project (http://tree.ceh.ac.uk/) funded by the Natural Environment Research Council, Environment Agency and Radioactive Waste Management Ltd. It was also supported by the Centre for Ecology & Hydrology which is part of the Natural Environment Research Council of the UK. Full details about this dataset can be found at https://doi.org/10.5285/05d3cbff-fa40-4c42-84e6-54ce6e7bbf5f