Since the 19 March 2008 explosion within Halema‘uma‘u that formed the new vent at Kilauea’s summit, degassing rates have been greatly elevated above the levels typical of previous years. The location and subsequent dispersion of this new degassing presents its own specific problems compared to that in the east rift zone. For example, throughout 2008 the Halema’uma’u plume was generally blown through the Kau desert, directly affecting downwind communities. In this study we present measurements made in July and halogens (HF, HCl, HBr and HI) in the new 2008. We characterize the gas chemistry in terms of SO 2 plume from Halema’uma’u in order to compare them with other plumes worldwide, including those from subduction zone settings and other emissions from Kilauea itself. Further to this we characterize the plume’s chemistry in terms of emissions of environmentally important metallic species both in the size- segregated aerosol (important for determining atmospheric lifetime and potential speciation) and in the case of Hg in the gas phase (both in the elemental form and reactive forms). To complement this plume characterization we also looked at preliminary environmental samples of grasses, rainwater and fog in order to investigate potential future avenues for research into the environmental consequences of Kilauea’s volcanic emissions.

Mather, T.A., Witt, M., Martin, R.S., Aiuppa, A., Bagnato, E.R., Sutton, A.J. (2009). Plume chemistry and potential impacts of the plume from the recent activity at Halema’uma’u, Kilauea, USA.. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? AGU Fall Meeting 2009, San Francisco.

Plume chemistry and potential impacts of the plume from the recent activity at Halema’uma’u, Kilauea, USA.

AIUPPA, Alessandro;BAGNATO, Emanuela Rita;
2009-01-01

Abstract

Since the 19 March 2008 explosion within Halema‘uma‘u that formed the new vent at Kilauea’s summit, degassing rates have been greatly elevated above the levels typical of previous years. The location and subsequent dispersion of this new degassing presents its own specific problems compared to that in the east rift zone. For example, throughout 2008 the Halema’uma’u plume was generally blown through the Kau desert, directly affecting downwind communities. In this study we present measurements made in July and halogens (HF, HCl, HBr and HI) in the new 2008. We characterize the gas chemistry in terms of SO 2 plume from Halema’uma’u in order to compare them with other plumes worldwide, including those from subduction zone settings and other emissions from Kilauea itself. Further to this we characterize the plume’s chemistry in terms of emissions of environmentally important metallic species both in the size- segregated aerosol (important for determining atmospheric lifetime and potential speciation) and in the case of Hg in the gas phase (both in the elemental form and reactive forms). To complement this plume characterization we also looked at preliminary environmental samples of grasses, rainwater and fog in order to investigate potential future avenues for research into the environmental consequences of Kilauea’s volcanic emissions.
Settore GEO/08 - Geochimica E Vulcanologia
2009
AGU Fall Meeting 2009
San Francisco
14–18 December
2009
00
http://agu-fm09.abstractcentral.com/planner?NEXT_PAGE=ITINERARY_ABS_DET_POP&SESSION_ABSTRACT_ID=514490&ABSTRACT_ID=712651&SESSION_ID=53651&PROGRAM_ID=2536
Mather, T.A., Witt, M., Martin, R.S., Aiuppa, A., Bagnato, E.R., Sutton, A.J. (2009). Plume chemistry and potential impacts of the plume from the recent activity at Halema’uma’u, Kilauea, USA.. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? AGU Fall Meeting 2009, San Francisco.
Proceedings (atti dei congressi)
Mather, TA; Witt, MLI; Martin, RS; Aiuppa, A; Bagnato, ER; Sutton, AJ
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/45228
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