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Table 2 Reported H2S emission rates from volcanoes

From: Volcanic plume measurements using a UAV for the 2014 Mt. Ontake eruption

Volcano Period H2S flux (t/d) Major sulfurc Methodd References
Mt. Baker 1975, 2000 5.5–112 H2S C. D. Radke et al. (1976), McGee et al. (2001)
Mt. St. Helens (phreatic period) March–May 1980 2.6–43 H2S C. D. Hobbs et al. (1982)
Mt. St. Helens (IE & Pa) May–June 1980 260–8600 H2S C. D. Hobbs et al. (1982)
Mt. St. Helens (PEb) June 1980–June 1981 1.7–864 SO2 C. D. Hobbs et al. (1982)
Mt. St. Helens (PEb) September 1980 65 SO2 Ratio Bandy et al. (1982)
White Island 2004, 2005, 2006 2–19 SO2 C. D. Werner et al. (2008)
Redoubt 2009, 2010 1–1230 SO2 C. D. Werner et al. (2013)
Redoubt 1997, 2000, 2001 2005 0–1 SO2 C. D. Doukas and McGee (2007)
Spurr 2004 0.2–3 H2S C. D. Doukas and McGee (2007)
Spurr 2005, 2006 0–6.7 SO2 C. D. Doukas and McGee (2007)
Iliamna 2001–2005 0–4 SO2 C. D. Doukas and McGee (2007)
Augustine 2002–2006 0–8.2 SO2 C. D. Doukas and McGee (2007)
Fourpeaked 2006 27–140 SO2 C. D. Doukas and McGee (2007)
Mageik 2004 69 H2S C. D. Doukas and McGee (2007)
Martin 2002, 2004 0–43 SO2 C. D. Doukas and McGee (2007)
Etna 1978, 1979 1–10 SO2 C. D. Jaeschke et al. (1982)
Etna 2003 50 SO2 Ratio Aiuppa et al. (2005a, b)
Stromboli 2003 8 SO2 Ratio Aiuppa et al. (2005a, b)
Vulcano 2003 6 SO2 Ratio Aiuppa et al. (2005a, b)
Bromo 2014 17–25 SO2 Ratio Aiuppa et al. (2015)
La Soufriere 2006, 2012 1–3.8 H2S C. D. Allard et al. (2014)
Mt. Ontake Oct. & Nov. 2014 710–800 H2S Ratio This study
Mt. Ontake Jun. 2015 <110 H2S Ratio This study
  1. aIE&P: Intra-eruptive and paroxysmal periods
  2. bPE: Post-eruptive period
  3. cMajor Sulfur: Major sulfur species in volcanic plume
  4. dMethod: Methods for H2S flux measurement. C. D.: concentration distribution by profiling; Ratio: combination SO2 flux and SO2/H2S ratio