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A global biogeochemical budget for vanadium

¹International Technology Corp., Knoxville, TN 37923.

The Science of the Total Environment

|January 25, 1994

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Anthropogenic vanadium emissions significantly contribute to atmospheric vanadium loading. While not a global threat, localized environmental hazards are possible under specific conditions.

Area of Science:

Environmental Science
Atmospheric Chemistry
Trace Metal Analysis

Background:

Growing concern exists regarding increasing environmental vanadium levels.
Anthropogenic activities are a suspected source of atmospheric vanadium injection.

Purpose of the Study:

To model the global distribution of vanadium influenced by anthropogenic sources.
To quantify the contribution of human industrial activities to atmospheric vanadium.

Main Methods:

Development of a simple global mass balance model.
Estimation of vanadium in particulate emissions from industrial activities.
Assessment of oceanic deposition of vanadium from anthropogenic particles.

Main Results:

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Industrial activities account for approximately 53% of total atmospheric vanadium loading.
Anthropogenic vanadium loading marginally exceeds natural dust sources.
Oceanic deposition of anthropogenic vanadium constitutes about 5% of total ocean vanadium loading.

Conclusions:

Current anthropogenic vanadium inputs do not pose a significant global environmental threat.
Localized environmental hazards from anthropogenic vanadium are possible under specific, unfavorable circumstances.