Urban Geochemical Atlas of Wellington, New Zealand
The dataset supports a geochemical atlas of Wellington (Morgenstern et al. 2024) and shows the abundance and variability of element concentrations within surficial soil material across the study area. Sampling was undertaken between December 2022 and April 2023 at 151 sites across an area spanning from Paekākāriki and the Remutaka Road Summit to the southern coastline, and from the Remutaka Ranges to the western coastline. Highly urbanised land (domestic and commercial properties) was sampled, as well as a variety of other, more natural land use types (native regenerating park, native park, exotic park, exotic forest, agricultural pasture) for comparison. At each site, two samples were collected using a hand auger: the upper O-depth (0–2 cm) and a shallow A-depth (2–20 cm). Several deeper B-depth (50–70 cm) samples were also collected for statistical analysis. Samples were dried, sieved to <2 mm and split into 15 g sample sizes, before being analysed for a suite of 65 elements (Ag, Al, As, Au, B, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Dy, Er, Eu, Fe, Ga, Gd, Ge, Hf, Hg, Ho, In, K, La, Li, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, P, Pb, Pd, Pr, Pt, Rb, Re, S, Sb, Sc, Se, Sm, Sn, Sr, Ta, Tb, Te, Th, Ti, Tl, Tm, U, V, W, Y, Yb, Zn and Zr) using aqua regia digestion and Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Most analytes have all or most measured values above their lower method detection limit and analytical results have undergone comprehensive quality assurance and quality control, and are internally consistent and in line with typical worldwide concentration ranges of the analytes.
The data are available in two forms; a spreadsheet of element concentrations for all depths sampled with sample locations collapsed to StatisticsNZ 2024 meshblocks to protect privacy and a zipped ArcGIS geodatabase of Inverse Distance Weighted (IDW) grids for each of the 65 elements.
Morgenstern R, Martin AP, Turnbull RE, Norton K, Rattenbury MS, Rogers KM. 2024. Urban Geochemical Atlas of Wellington, New Zealand. Lower Hutt (NZ): GNS Science. 128 p. (GNS Science report; 2024/01). https://doi.org/10.21420/8adh-f354
Simple
- Date (Publication)
- 2024-06-06
- Citation identifier
- https://data.gns.cri.nz/metadata/srv/eng/catalog.search#/metadata/20c19f95-4079-4fdf-a5a8-ed6ecbc6b727
- Purpose
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The dataset supports the Urban Geochemical Atlas of Wellington, New Zealand (Morgenstern et al. 2024) that highlights the variation in trace element concentrations in near-surface soil materials across much of the Wellington Region.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role GNS Science
Point of contact
- Maintenance and update frequency
- Not planned
- Keywords
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trace elements
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geochemistry
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soil
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urban
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metal pollution
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contamination
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anthropogenic
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- Classification
- Unclassified
- Use constraints
- Copyright
- Other constraints
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GNS Science 2024
- Use constraints
- License
- Other constraints
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Creative Commons Attribution International 4.0 (CC-BY)
- Spatial representation type
- Grid
- Denominator
- 50000
- Distance
- 1 1 m
- Language
- English
- Topic category
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- Environment
- Geoscientific information
- Distribution format
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Name Version
- OnLine resource
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Protocol Linkage Name WWW:LINK-1.0-http--link
WWW:LINK-1.0-http--link
https://shop.gns.cri.nz/account.php?action=download_item&data=NTM1MzIsNTI1NCwzMjYwNyxlMmU5ZWNmYjkxMzMyMzc4NGZhYjgzNWVmZWYyYTJlOSwzOTM4LDMyMzExMTIwOTgyMzA1NjYzMDU3NDY5ODkwMTUwNjgz Zipped GIS files
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https://shop.gns.cri.nz/account.php?action=download_item&data=NTM1MzIsNTI1NCwzMjYwNyxlMmU5ZWNmYjkxMzMyMzc4NGZhYjgzNWVmZWYyYTJlOSwzOTM3LDg2MjI2MzM4NzUyNzUyMDI1MzcwOTg0MjkxMTY1MTg1MDQ= Summary data in CSV
- Hierarchy level
- Dataset
- Statement
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Samples have been collected from 151 sites from two depths within the top 30 cm (maximum) of soil by hand auger from many parts of the Wellington Region. All samples were dried and sieved to <2 mm, and 15 g aliquots were analysed for a suite of 65 elements (Ag, Al, As, Au, B, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Dy, Er, Eu, Fe, Ga, Gd, Ge, Hf, Hg, Ho, In, K, La, Li, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, P, Pb, Pd, Pr, Pt, Rb, Re, S, Sb, Sc, Se, Sm, Sn, Sr, Ta, Tb, Te, Th, Ti, Tl, Tm, U, V, W, Y, Yb, Zn and Zr) using inductively coupled plasma mass spectrometry (ICP-MS) on aqua regia digests. Extensive QA/QC was undertaken based on laboratory and project standards, including duplicates, replicates and blanks.
The data have been tabulated in a spreadsheet with sample locations collapsed to StatisticsNZ 2024 meshblocks to protect privacy. Inverse Distance Weighted (IDW) GIS grids were generated for the 65 elements using ArcGIS software. Details available from Morgenstern R, Martin AP, Turnbull RE, Norton K, Rattenbury MS, Rogers KM. 2024. Urban Geochemical Atlas of Wellington, New Zealand. Lower Hutt (NZ): GNS Science. 128 p. (GNS Science report; 2024/01). https://doi:10.21420/8ADH-F354
Metadata
- File identifier
- 20c19f95-4079-4fdf-a5a8-ed6ecbc6b727 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
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Dataset
- Date stamp
- 2024-06-10T10:13:12
- Metadata standard name
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ISO 19115:2003/19139
- Metadata standard version
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1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role GNS Science
Point of contact