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Related Experiment Video

Updated: Oct 23, 2025

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

Fingerprinting vanadium in soils based on speciation characteristics and isotope compositions.

Yi Huang¹, Zhijie Long², Dan Zhou¹

¹State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, Sichuan, China.

The Science of the Total Environment

|August 20, 2021

Summary

Tracing toxic vanadium (V) sources in soil is challenging. This study used speciation and isotope analysis to identify V sources from coal-burning and smelting, revealing fly ash as a primary contributor in topsoil.

Keywords:

Non-traditional stable isotopes Soil Source tracing Speciation Vanadium

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Area of Science:

Environmental Geochemistry
Isotope Geochemistry
Environmental Pollution

Background:

Vanadium (V) poses toxic risks to human health and ecosystems.
Identifying the sources of environmental vanadium contamination is crucial but difficult.
Existing methods for vanadium tracing require enhancement for accuracy.

Purpose of the Study:

To develop and apply effective methods for tracing vanadium sources in soil.
To differentiate between anthropogenic and natural vanadium inputs.
To investigate the impact of coal-burning and smelting on soil vanadium contamination.

Main Methods:

Utilized sequential extraction method (European Communities Bureau of Reference - BCR) for vanadium speciation analysis.
Analyzed vanadium isotope compositions (δ⁵¹V) in soil samples from polluted areas.
Compared soil isotope data with potential end-member sources like coal fly ash and smelter slag.

Main Results:

Significant variations in δ⁵¹V were observed, distinguishing between coal-burning and smelting processes.
Fly ash from coal-burning was identified as the primary anthropogenic vanadium source in topsoil.
Downward migration of vanadium was noted near smelting plants, with deep soils showing more natural vanadium dominance.

Conclusions:

Combined speciation and isotope analysis provide robust methods for vanadium source tracing in soils.
Coal-burning (fly ash) and smelting are significant anthropogenic vanadium contributors in the studied region.
Understanding vanadium migration and source apportionment is vital for environmental risk assessment and management.