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Rapid metal pollutant deposition from the volcanic plume of Kīlauea, Hawai’i

Published version
Peer-reviewed

Repository DOI


Type

Article

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Abstract

jats:titleAbstract</jats:title>jats:pLong-lived basaltic volcanic eruptions are a globally important source of environmentally reactive, volatile metal pollutant elements such as selenium, cadmium and lead. The 2018 eruption of Kīlauea, Hawai’i produced exceptionally high discharge of metal pollutants, and was an unprecedented opportunity to track them from vent to deposition. Here we show, through geochemical sampling of the plume that volatile metal pollutants were depleted in the plume up to 100 times faster than refractory species, such as magnesium and iron. We propose that this rapid wet deposition of complexes containing reactive and potentially toxic volatile metal pollutants may disproportionately impact localised areas close to the vent. We infer that the relationship between volatility and solubility is an important control on the atmospheric behaviour of elements. We suggest that assessment of hazards from volcanic emissions should account for heterogeneous plume depletion of metal pollutants.</jats:p>

Description

Keywords

4105 Pollution and Contamination, 37 Earth Sciences, 41 Environmental Sciences, 3703 Geochemistry, 3705 Geology, 3706 Geophysics

Journal Title

Communications Earth and Environment

Conference Name

Journal ISSN

2662-4435
2662-4435

Volume Title

Publisher

Springer Science and Business Media LLC
Sponsorship
EPSRC (1943898)
Natural Environment Research Council (NE/N009312/1)
Natural Environment Research Council (NE/P015271/1)
Natural Environment Research Council (NE/R009465/1)
Natural Environment Research Council (NE/S00436X/1)
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Version History

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2023-08-14 13:49:45
Published version added
2021-02-26 13:42:39
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