Data · dataset · 2025
Isotopic Compositions and Source Identification of Atmospheric Particulate Bound Cadmium in Chinese Megacities
Listed in ScienceDB
This dataset contains concentrations and stable isotopic compositions (δ114Cd) of cadmium (Cd) in PM2.5 samples collected from five Chinese megacities, including Beijing, Jinan, Lanzhou, Chengdu, and Guangzhou.
Description
The dataset also includes PM2.5 mass concentrations, enrichment factors (EFucc), elemental concentrations (e.g., Fe, Zn, As, Sb, Pb), and ancillary parameters used for source identification.All PM2.5 samples were collected during both winter and summer of 2018 using high-volume samplers.
Cadmium isotopic compositions were measured by MC–ICP–MS after chromatographic purification. These data support the investigation of anthropogenic sources of atmospheric cadmium and provide observational constraints for urban atmospheric Cd isotope signatures.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.34123 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Isotope geochemistry 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.34123 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].anzsrc:field:370303 | enrichment · scidb cn | taxonomy-embedding@1.0.0 | title+keywords+description (75%) |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |