dataset · United Kingdom
Stream sediment geochemistry (500m Grid) dataset
This dataset represents the first publication of complete national maps from the Geochemical Baseline Survey of the Environment (G-BASE) and TellusNI projects, whose aim was to conduct a national geochemical survey of the United Kingdom in order to improve understanding of our geology and environment and provide quantitative evidence against which to gauge future environmental change. This dataset consists of a series of interpolated raster (ASCII grid) maps displaying the concentrations of a su
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Licence: ["The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in an
Evidence quality: 40.7
Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- stream sediment concentrations of chemical elements and oxides (interpolated raster maps) · Arsenic · Barium · Calcium (CaO) · Chromium · Cobalt · Copper · Iron (Fe2O3) · Lanthanum · Lead · Magnesium (MgO) · Manganese (MnO) · Nickel · Potassium (K2O) · Rubidium · Uranium · Vanadium · Zinc · Zirconium
- Coverage docs-verified
- United Kingdom
- Resolution docs-verified
- 500 m grid (interpolated raster)
- Update frequency docs-verified
- as needed (no fixed schedule)
- Formats docs-verified
- ASCII grid (raster)
- Access docs-verified
- Publicly listed on data.gov.uk; reuse restricted. Copyright vested in NERC; reproduction or transmission needs prior permission of the copyright holder (via BGS IPR Manager).
Useful for
- Use cases llm-inferred
- Background metal/element concentrations for contaminated land desk studies and Phase 1/2 screening · Regional geochemical baseline context for water quality or abstraction assessments · Geology-related baseline inputs for ecological or BNG habitat assessments · Sediment and soil background reference values for waste classification or remediation screening
- Audience llm-inferred
- environmental consultants · contaminated land specialists · geotechnical engineers · hydrologists · ecologists · GIS analysts
Limitations
- Constraints llm-inferred
- Interpolated grid surface, not direct point measurements; values between sample sites are estimates · No warranty as to quality, accuracy or suitability; use is at the customer's own risk · Reuse restricted by NERC copyright; written permission needed to reproduce or transmit · No sampling time span stated in the metadata (publication date 2017-02 only)
Evidence
- https://www.bgs.ac.uk/datasets/uk-stream-sediment-geochemistry/
- https://www.data.gov.uk/dataset/9ad8000a-ddd6-446b-9c9f-5e9e59d7ea79/stream-sediment-geochemistry-500m-grid-dataset
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.