Izquierdo, M.; Young, S.; Bailey, E.; Crout, N.; Chenery, S.; Shaw, G.

Time series of uranium transformations in aerobic soils following experimental addition of uranyl ion

The data comprise measurements of the ‘soluble’, ‘chemically exchangeable’ and ‘isotopically exchangeable’ U concentrations in a diverse set of soils following experimental addition of UO22+ and incubation in the laboratory under controlled temperature conditions for ca. 1.7 years.

The long term behaviour of U in aerobic soils was studied by conducting a laboratory-based experiment in which a set of 20 topsoils from central England with contrasting properties (e.g. pH, organic matter content, land use) were contaminated with a solution containing UO22+ in soluble form and incubated in the dark, in a moist but aerobic condition, at a temperature of 10oC for 619 days. The transformations of U in each soil microcosm were periodically monitored by means of soil extractions conducted on subsamples of incubated soils.

The resulting dataset enabled quantification of the kinetics of UO22+ transformations in aerobic soils and the relationships with soil properties and land uses (arable, grassland and moorland/woodland). The dataset will be useful in developing models of long-term U bioavailability in aerobic soils under temperate conditions.

Publication date: 2020-04-23

Get the data

This dataset is available under the terms of the Open Government Licence

Format of the data: Comma-separated values (CSV)

You must cite: Izquierdo, M.; Young, S.; Bailey, E.; Crout, N.; Chenery, S.; Shaw, G. (2020). Time series of uranium transformations in aerobic soils following experimental addition of uranyl ion. NERC Environmental Information Data Centre. https://doi.org/10.5285/0d8b2aea-574c-4cff-a8bd-17115a0b90fc

 

University of Nottingham

Natural Environment Research Council

Environment Agency

Radioactive Waste Management

Where/When

Study area
Temporal extent
2014-11-01    to    2017-05-31

Provenance & quality

At each sampling time, a portion of ca. 4g soil from each microcosm was equilibrated with 0.01 M KNO3 to quantify the soluble U. The chemically exchangeable and isotopically exchangeable fractions of U were determined by equilibrating another portion of ca. 2g soil with 1 M Mg(NO3)2 containing a known amount of the isotopic tracers 233UO22+ and 236UO22+. Soil extracts were analysed using a Thermo Fisher Scientific iCAP-Q ICP-MS.

Correspondence/contact details

Prof. George Shaw
University of Nottingham
 george.shaw@nottingham.ac.uk

Authors

Izquierdo, M.
University of Nottingham
Young, S.
University of Nottingham
Bailey, E.
University of Nottingham
Crout, N.
University of Nottingham
Chenery, S.
British Geological Survey
Shaw, G.
University of Nottingham

Other contacts

Custodian
Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC Environmental Information Data Centre
 info@eidc.ac.uk

Additional metadata

Topic categories
Environment
Keywords
Aerobic soils,  Chernobyl,  Incubation,  Radioecology Soil Uranium
INSPIRE Theme
Soil
Spatial representation type
Tabular (text)
Spatial reference system
WGS 84
Last updated
27 April 2020 15:12