DOI: 10.1002/2015GL065340
论文题名: High emission rate of sulfuric acid from Bezymianny volcano, Kamchatka
作者: Zelenski M. ; Taran Y. ; Galle B.
刊名: Geophysical Research Letters
ISSN: 0094-9172
EISSN: 1944-8903
出版年: 2015
卷: 42, 期: 17 起始页码: 7005
结束页码: 7013
语种: 英语
英文关键词: aerosol
; Bezymianny volcano
; catalytic oxidation
; remote measurements
; SO2 emission
; sulfuric acid
Scopus关键词: Absorption spectroscopy
; Aerosols
; Domes
; Electromagnetic wave absorption
; Light absorption
; Optical emission spectroscopy
; Sulfur
; Sulfuric acid
; Volcanoes
; Different stages
; Differential optical absorption spectroscopy
; Direct sampling
; Emission rates
; Entrained air
; Magma bodies
; Remote measurement
; Sulfate aerosols
; Catalytic oxidation
; aerosol
; catalysis
; concentration (composition)
; dome
; emission
; magma
; oxidation
; sampling
; sulfur dioxide
; sulfuric acid
; volcanic eruption
; Kamchatka
; Russian Federation
英文摘要: High concentrations of primary sulfuric acid (H2SO4) in fumarolic gases and high emission rate of sulfuric acid aerosol in the plume were measured at Bezymianny volcano, an active dome-growing andesitic volcano in central Kamchatka. Using direct sampling, filter pack sampling, and differential optical absorption spectroscopy measurements, we estimated an average emission of H2SO4 at 243 ± 75 t/d in addition to an average SO2 emission of 212 ± 65 t/d. The fumarolic gases of Bezymianny correspond to arc gases released by several magma bodies at different stages of degassing and contain 25-92% of entrained air. H2SO4 accounts for 6-87 mol% of the total sulfur content, 42.8 mol% on average, and SO2 is the rest. The high H2SO4 in Bezymianny fumaroles can be explained by catalytic oxidation of SO2 inside the volcanic dome. Because sulfate aerosol is impossible to measure remotely, the total sulfur content in a plume containing significant H2SO4 may be seriously underestimated. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943328011&doi=10.1002%2f2015GL065340&partnerID=40&md5=28bf02118182f9a19d13605a1c194e40
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8788
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute of Experimental Mineralogy, Russian Academy of Sciences, Chernogolovka, Russian Federation
Recommended Citation:
Zelenski M.,Taran Y.,Galle B.. High emission rate of sulfuric acid from Bezymianny volcano, Kamchatka[J]. Geophysical Research Letters,2015-01-01,42(17).