Identification

Title

Elemental concentrations (Ca, Cs, K, Mg, Sr) in a range of crops and associated soils from the UK and Spain

Abstract

Data comprise elemental concentrations of Ca, Cs, K, Mg, Sr, NH4-N and NPOC (Non-Purgeable Organic Carbon) measured by ICPMS (Inductively Coupled Plasma Mass Spectrometry), ICPOES (Inductively Coupled Plasma Optical Emission Spectroscopy) or high temperature combustion catalytic oxidation. Samples include a range of freeze-dried crops (grass, radish, potato, strawberry, lettuce, courgette, chard) relevant to the human food chain, soil, soil pore waters and irrigation water. All samples were obtained following two plant growth studies conducted at CEH Lancaster during spring/summer 2018 and 2019 and a study conducted at the University of Extremadura (Cáceres) in the summer of 2018. The study was conducted as part of the CONFIDENCE project which is part of the CONCERT EJP, which receives funding from the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No 662287. Full details about this dataset can be found at https://doi.org/10.5285/76d6772d-477e-4a49-a4a6-a0fe6a0a9ba9

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/data/76d6772d-477e-4a49-a4a6-a0fe6a0a9ba9

name: Download the data

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/76d6772d-477e-4a49-a4a6-a0fe6a0a9ba9.zip

name: Supporting information

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/76d6772d-477e-4a49-a4a6-a0fe6a0a9ba9

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

biota

environment

Keywords

Keyword set

keyword value

Soil

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Element

NPOC

NH4-N

Pore water

Chard

Courgette

Lettuce

Human Food Chain

ICPMS

Strawberry

Potato

Plant Growth Study

ICPOES

Grass

Radish

CONFIDENCE project

Geographic location

West bounding longitude

-9.58

East bounding longitude

1.845

North bounding latitude

59.085

South bounding latitude

36.031

Temporal reference

Temporal extent

Begin position

2018-03-01

End position

2019-07-31

Dataset reference date

date type

publication

effective date

2019-12-03

Frequency of update

Quality and validity

Lineage

Prior to analysis crop samples were freeze-dried, re-weighed and then finely ground (<2mm, using either an agate mill or a pestle and mortar); soil samples were air (~20 oC) or oven dried (~60 oC) prior to being finely ground (<2mm, using an agate mill). In preparation for ICMPS/ICPOES analysis the finely ground soil and crop samples were re-weighed and digested in aqua regia reagent (3:1 mixture of concentrated HNO3 and HCl ‘Aristar’ grade acids) at 175°C for 12 minutes using a microwave digestion system (CEM, MarsXpress). A second sub-sample of the soil samples was also extracted using 0.1M BaCl2 followed by centrifugation (see Lofts et al. 2001. https://doi.org/10.1046/j.1365-2389.2001.00358.x). Filtered (0.45 µm pore size) and acidified (1% v/v HNO3, ultra-pure) pore waters and irrigation waters were analysed directly. All samples were then diluted 100-fold prior to analyses. Analysis of the digests, extracts and pore waters was conducted by ICPMS for Cs and Sr (Perkin Elmer, NeXION 300D) or ICPOES for Ca, K and Mg (Perkin Elmer, Optima 7300 DV). ICPMS and ICPOES quantitative measurements were made using external calibration after spiking the digests with 10 µg l-1 Ga, In and Re as internal standards to compensate for instrumental drift and matrix effects. ICPMS and ICPOES instrument limits of detection (LOD) were calculated by using the mean and three standard deviation measurements for the digestion reagent blank. Total method LODs for each element were then calculated to take account the sample mass and the dilution arising from the digestion procedure. A Shimadzu TOC-L analyser, equipped with a TNM-L module, was used to measure NPOC. Before analysis, samples were acidified with 1M HCl and then purged with Zero grade air for six minutes to remove any inorganic carbon. The sample was then injected into the analyser and the remaining carbon, as NPOC, measured by combustion at 720°C, with a catalyst, which converted all carbon to carbon dioxide. The carbon dioxide was measured by an infra-red detector. Data were recorded into Microsoft Excel workbooks from laboratory notebooks and instrument reports. A proportion of the data (approximately 20%) has been validated by somebody other than the person making the initial entry.

Conformity

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

If you reuse this data, you should cite: Barnett, C.L., Wells, C. , Beresford, N.A., Guillén, J., Gómez Polo, F.M., Thacker, S., Lawlor, A.J., Keenan, P.O. (2019). Elemental concentrations (Ca, Cs, K, Mg, Sr) in a range of crops and associated soils from the UK and Spain. NERC Environmental Information Data Centre https://doi.org/10.5285/76d6772d-477e-4a49-a4a6-a0fe6a0a9ba9

Responsible organisations

Responsible party

organisation name

Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

LARUEX, University of Extremadura

email address

fguillen@unex.es

responsible party role

author

Responsible party

organisation name

LARUEX, University of Extremadura

email address

fpolo86@gmail.com

responsible party role

author

Responsible party

organisation name

Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

UK Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

pointOfContact

Responsible party

organisation name

Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

custodian

Responsible party

organisation name

NERC Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

publisher

Metadata on metadata

Metadata point of contact

organisation name

Environmental Information Data Centre

full postal address

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

UK

email address

info@eidc.ac.uk

responsible party role

pointOfContact

Metadata date

2021-02-05T11:20:58

Metadata language

eng