Ecological and health risk assessment of rare earth elements in Kaifeng, Henan Province: a Monte Carlo probabilistic approach
Weichun He, Yuanbo Wang, Keying Chen, Yuling Jiang, Qiang Li, Qin Liang · 2026
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Description
Weichun He and co-authors assess whether rare earth elements in a Chinese city's soil threaten its residents or its ecology. Their 2026 study samples seventy surface sites across Kaifeng and measures thirteen rare earths. The results feed the standard American risk model, upgraded with Monte Carlo simulation to handle uncertainty honestly.
Average soil levels sat near 139 milligrams per kilogram. Modeled daily doses for adults and children came out far below the safety threshold, by orders of magnitude. Ecological risk varied by site from low to notable. The simulation's sensitivity analysis delivered the punch: exposure assumptions drove about eighty percent of the result's variation, dwarfing the chemistry's own share. Risk assessors usually polish their concentration data; this study says the behavioral parameters deserve the polish. For Kaifeng itself, the verdict is reassurance.
Catalog record
| CREATOR | Weichun He, Yuanbo Wang, Keying Chen, Yuling Jiang, Qiang Li, Qin Liang |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 30 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |