Leach, D.; Neal, M.; Smith, C.J.; Bachiller-Jareno, N.; Tindall, I.; Moore, R.

Trace element data from rivers [LOIS]

Discrete data for trace elements for both the dissolved and acid available fractions for thirteen core sites in the Humber catchment over the period 1993 to 1997 and for three sites from the Tweed catchment over the period 1994 to 1997. Part of the Land Ocean Interaction Study project (LOIS). Trace elements measured were: Aluminium (Al), Antimony (Sb), Arsenic (As), Barium (Ba), Beryllium (Be), Boron (B), Cadmium (Cd), Cerium (Ce), Chromium (Cr), Cobalt (Co), Copper (Cu), Gadolinium (Gd), Iron (Fe), Lanthanum (La), Lead (Pb), Lithium (Li), Manganese (Mn), Molybdenum (Mo), Neodymium (Nd), Nickel (Ni), Rubidium (Rb), Samarium (Sm), Scandium (Sc), Strontium (Sr), Tin (Sn), Uranium (U), Yttrium (Y), Zinc (Zn). The Core sites were sampled at regular weekly intervals and more intermittently during high flows (on average an extra sampling once a month per site). The Swale sites were sampled during hydrological events and the Aire sites were sampled both weekly and during hydrological events. The majority of samples were obtained using a wide neck grab sampler. Those samples collected from the Aire during hydrological events were obtained using EPIC automatic samplers. Both dissolved and acid available trace element fractions were determined for all samples. The dissolved fraction was measured by filtering samples and acidifying the filtrates with concentrated aristar grade nitric acid (1%vv) on the same day of sampling. The acid available fraction was determined by acidifying an unfiltered sample as above and agitating for 24 hours, at room temperature, prior to filtration. Samples were then analysed by inductively coupled plasma optical emission spectrometry (ICP-OES: B, Ba, Fe, Mn, Sr) and mass spectrometry (ICP-MS: Al, As, Be, Cd, Ce, Co, Cr, Cu, Gd, La, Li, Mo, Nd, Ni, Pb, Rb, Sb, Sc, Sm, Sn, U, Y, Zn).

Publication date: 2013-07-01

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Supporting documentation

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

Access and use conditions

This resource is made available under the terms of the Open Government Licence

You must cite: Leach, D.; Neal, M.; Smith, C.J.; Bachiller-Jareno, N.; Tindall, I.; Moore, R. (2013). Trace element data from rivers [LOIS]. NERC Environmental Information Data Centre. https://doi.org/10.5285/69f62656-567c-42dd-bb65-8f0cbbeb1693


© Centre for Ecology & Hydrology (Natural Environment Research Council)


Study area
Temporal extent
1993-09-07    to    1997-10-29

Provenance & quality

For the trace element determinations, quality control standards were included with the samples during analysis. These standards were checked weekly against international quality control references prepared by the United States Geological Survey National Water Quality Laboratory (SRM 1643c). The lowest quotable values were taken as five times the detection level and all variables were rounded to the nearest 0.1 ug/l apart from Aluminium, Beryllium, Boron, Copper, Iron, Lithium and Zinc which were rounded to the nearest 1 ug/l. A zip file of box-and-whisker plots for each determinand, showing the range of values (median, inter-quartile range, 1.5 * inter-quartile range, outliers) recorded at each site, is available to enable prospective users to understand data quality.

Correspondence/contact details

Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
OX10 8BB
United Kingdom


Leach, D.
University of York
Neal, M.
Centre for Ecology & Hydrology
Smith, C.J.
Centre for Ecology & Hydrology
Bachiller-Jareno, N.
Centre for Ecology & Hydrology
Tindall, I.
Centre for Ecology & Hydrology
Moore, R.
Centre for Ecology & Hydrology

Other contacts

Environmental Information Data Centre
NERC Environmental Information Data Centre


Spatial representation type
Tabular (text)
Spatial reference system
OSGB 1936 / British National Grid


Topic categories
Environmental monitoring facilities
Aire,  Aluminium,  Antimony,  Arsenic,  Barium,  Beryllium,  Boron,  Cadmium,  Calder,  Cerium,  Chromium,  Cobalt,  Copper,  Derwent,  Ecological Processes & Resilience England Gadolinium,  Humber,  Iron,  Land Ocean Interaction Study project,  Lanthanum,  Lead,  Lithium,  LOIS,  Manganese,  Molybdenum,  Neodymium,  Nickel,  Nidd,  Ouse,  Rees Section Rubidium,  Samarium,  Scandium,  Strontium,  Sustainable Land Management Swale,  Tin,  Trent,  Uranium,  water quality,  Water quality Water Resources Yttrium,  Zinc