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Speciation of volatile arsenic at geothermal features in Yellowstone National Park

Title data

Planer-Friedrich, Britta ; Lehr, Corinne ; Merkel, Broder J. ; Nordstrom, Darrell Kirk ; Sandstrom, Mark W. ; Matschullat, Jörg:
Speciation of volatile arsenic at geothermal features in Yellowstone National Park.
In: Geochimica et Cosmochimica Acta. Vol. 70 (2006) Issue 10 . - pp. 2480-2491.
ISSN 0016-7037
DOI: https://doi.org/10.1016/j.gca.2006.02.019

Abstract in another language

Geothermal features in the Yellowstone National Park contain up to several milligram per liter of aqueous arsenic. Part of this arsenic is volatilized and released into the atmosphere. Total volatile arsenic concentrations of 0.5–200 mg/m3 at the surface of the hot springs were found to exceed the previously assumed nanogram per cubic meter range of background concentrations by orders of magnitude. Speciation of the volatile arsenic was performed using solid-phase micro-extraction fibers with analysis by GC–MS. The arsenic species most frequently identified in the samples is (CH3)2AsCl, followed by (CH3)3As, (CH3)2AsSCH3, and CH3AsCl2 in decreasing order of frequency. This report contains the first documented occurrence of chloro- and thioarsines in a natural environment. Toxicity, mobility, and degradation products are unknown.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER80714
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Environmental Geochemistry Group
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Environmental Geochemistry Group > Professorship Environmental Geochemistry - Univ.-Prof. Dr. Britta Planer-Friedrich
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 08 May 2015 06:18
Last Modified: 08 May 2015 06:18
URI: https://eref.uni-bayreuth.de/id/eprint/13143