Research Article| March 01, 2005 SO2 and fine aerosol dispersion from the Kilauea plume, Kau district, Hawaii, USA Bernadette M. Longo; Bernadette M. Longo 1Department of Public Health, Oregon State University, Waldo Hall 256, Corvallis, Oregon 97331, USA Search for other works by this author on: GSW Google Scholar Anita Grunder; Anita Grunder 2Department of Geosciences, Oregon State University, Wilkinson 104, Corvallis, Oregon 97331, USA Search for other works by this author on: GSW Google Scholar Raymond Chuan; Raymond Chuan 3P.O. Box 1183, Hanalei, Hawaii 96714, USA Search for other works by this author on: GSW Google Scholar Annette Rossignol Annette Rossignol 4Department of Public Health, Oregon State University, Waldo Hall 256, Corvallis, Oregon 97331, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Bernadette M. Longo 1Department of Public Health, Oregon State University, Waldo Hall 256, Corvallis, Oregon 97331, USA Anita Grunder 2Department of Geosciences, Oregon State University, Wilkinson 104, Corvallis, Oregon 97331, USA Raymond Chuan 3P.O. Box 1183, Hanalei, Hawaii 96714, USA Annette Rossignol 4Department of Public Health, Oregon State University, Waldo Hall 256, Corvallis, Oregon 97331, USA Publisher: Geological Society of America Received: 22 Sep 2004 Revision Received: 15 Nov 2004 Accepted: 16 Nov 2004 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2005) 33 (3): 217–220. https://doi.org/10.1130/G21167.1 Article history Received: 22 Sep 2004 Revision Received: 15 Nov 2004 Accepted: 16 Nov 2004 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Bernadette M. Longo, Anita Grunder, Raymond Chuan, Annette Rossignol; SO2 and fine aerosol dispersion from the Kilauea plume, Kau district, Hawaii, USA. Geology 2005;; 33 (3): 217–220. doi: https://doi.org/10.1130/G21167.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Proximal ground-level assessment of sulfur dioxide gas and fine aerosol in the volcanic gas plume downwind from Kilauea volcano indicates high levels of both species. Fine aerosol and SO2 data were collected in the Kau district, 37–74 km downwind from the eruption, and at a nonexposed control site in Hawi, Hawaii. Typical trade winds and effusive eruption occurred during sampling in August–September 2003. Ambient SO2 concentrations, measured with diffusion tubes, ranged from 6 to 34 ppbv and correlated negatively with altitude. In contrast, fine aerosol (≤0.3 μm size) concentrations, measured with a cascade impactor, ranged from 0.61 to 11.82 μg/m3 and correlated positively with altitude. We attribute decrease of SO2 with altitude to rapid oxidation as diurnal wind patterns blow the plume from oceanic terrain landward to more abundant oxidation sources. Aerosol increase with altitude likely reflects emission of H2SO4 from Kilauea, supplemented by oxidation of SO2 in atmospheric hydrosols. Kau residents are exposed to volcanogenic pollutants at concentrations that warrant concern for adverse health effects. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.