TY - RPRT TI - Emission rates of CO2, SO2, and H2S, scrubbing, and preeruption excess volatiles at Mount St. Helens, 2004-2005 AU - Terrence M. Gerlach AU - Kenneth A. McGee AU - Michael P. Doukas PY - 2008 DO - 10.3133/pp175026 UR - https://pubs.usgs.gov/publication/pp175026 ID - pp175026 ER -