Urban Topsoil Heavy Metal Concentrations from British Geological Survey

Point source data provides locations and concentrations in mg kg-1 for Arsenic, Cadmium, Chromium, Nickel, and Lead in urban topsoil. The dataset, created by the British Geological Survey, is derived from high-resolution geochemical surveys to assist in land-use planning and pollution source attribution.

Use Cases

• Map concentrations of Arsenic, Cadmium, Chromium, Nickel, and Lead to identify urban areas with elevated heavy metal levels for risk assessment.
• Compare point source concentration data with land-use records to attribute high metal levels to geogenic or anthropogenic sources.
• Use spatially interpolated estimated geometric mean concentrations to model topsoil pollution gradients across urban landscapes.

Strengths

• Data originates from the high-resolution BGS Geochemical Baseline Survey of the Environment (G-BASE) project.
• Focuses on five environmentally significant heavy metals: Arsenic, Cadmium, Chromium, Nickel, and Lead.

Limitations

• The dataset has been superseded by an estimated version, indicating the point source data may not be the current authoritative source.
• Based on and limited to BGS records available at creation time, potentially omitting newer samples or areas.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Derived from high-resolution urban soil geochemical data from the BGS G-BASE project.

Time Range

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Freshness

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Geography

Urban areas of the United Kingdom