Document Detail


Chemical and morphological characterization of aerosol particles at Mt. Krvavec, Slovenia, during the Eyjafjallajökull Icelandic volcanic eruption.
MedLine Citation:
PMID:  21725697     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: In this work, continuous and size-segregated aerosol measurements at Mt. Krvavec, Slovenia, during the Eyjafjallajökull volcanic eruption were performed. Based on chemical and morphological characteristics of size-segregated particles, the presence of the volcanic aerosols after long-range transport to Slovenia was to be confirmed.
RESULTS AND CONCLUSIONS: Continuous measurements with the aethalometer and SMPS indicated the suspected volcanic ash plume passing over the sampling site. The aerosols collected by discrete sampling showed a chemical signature similar to the known elemental signature of the Icelandic volcanic ash. Coarse particles showed a composition typical for silicates rich in metals; in many cases also S was present. Morphological analysis showed particles with features indicative of an explosive volcanic eruption, e.g., pumice and pumice shards, glass shards, minerals, evidence of steam condensation, etc. The high sulfate concentration associated with the fine particles resulted in sulfate crystallization within the cascade impactor leading to the formation of large structures resembling a "fern". Mass size distributions for Fe, Ti, Mn, Ca, Na, and Mg showed one primary peak (for Fe, Mn, and Ti at 2.8 μm; for Ca, Na, and Mg at ca. 4 μm), which supports the fact that most of the particles in the coarse sizes were silicates rich in metals. The size distribution of the water-soluble SO(4)(2-) showed a maximum peak at 0.75 μm, which also confirms the high sulfate concentration in the fine particles. Chemical and morphological characterization of aerosols collected at Mt. Krvavec indeed confirmed that volcanic ash plume passed over Slovenia.
Authors:
Michael Beeston; Irena Grgić; Johannes T van Elteren; Ivan Iskra; Gregor Kapun; Griša Močnik
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-07-02
Journal Detail:
Title:  Environmental science and pollution research international     Volume:  19     ISSN:  1614-7499     ISO Abbreviation:  Environ Sci Pollut Res Int     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-01-02     Completed Date:  2012-02-17     Revised Date:  2013-05-20    
Medline Journal Info:
Nlm Unique ID:  9441769     Medline TA:  Environ Sci Pollut Res Int     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  235-43     Citation Subset:  IM    
Affiliation:
National Institute of Chemistry, Ljubljana, Slovenia.
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MeSH Terms
Descriptor/Qualifier:
Aerosols / analysis*,  chemistry
Air Pollutants / analysis*,  chemistry
Environmental Monitoring*
Metals / analysis*
Particle Size
Slovenia
Sulfates / analysis
Volcanic Eruptions*
Chemical
Reg. No./Substance:
0/Aerosols; 0/Air Pollutants; 0/Metals; 0/Sulfates

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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