Contribution of oceanic DMS and isoprene to atmospheric environment by high-resolution measurements

• Project/Area Number: 22740355
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Geochemistry/Astrochemistry
• Research Institution: Hokkaido University
• Principal Investigator: KAMEYAMA Sohiko 北海道大学, 大学院・地球環境科学研究院, 助教 (70510543)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: DMS / イソプレン / 陽子移動反応-質量分析計

Research Abstract

In order to evaluate contribution of oceanic dimethyl sulfide (DMS) and isoprene to atmospheric environment we tried to develop a new analytical method with membrane equilibrator for continuous measurement of DMS and isoprene dissolved in seawater. While we found that the degree of equilibrium for isoprene has large uncertainty because of the difficulty of preparation of standard solution, the degree for DMS was evaluated as 80% in this study and the system is now available to use in the oceanic observation. Further research will improve our understanding of influence of DMS and isoprene on the atmospheric environment over the sea.

Research Products

• [Journal Article] Application of PTR-MS to incubation experiments of the marine diatom Thalassiosira pseudonana (2011)
  • Author(s): Kameyama
  • Journal Title: Geochemical Journal Volume: 45 Pages: 355-363
  • NAID: 10030362941
  • Peer Reviewed
• [Journal Article] Origin and fate of deep-sea seeping methane bubbles at Kuroshima knoll, Ryukyu forearc region, Japan (2010)
  • Author(s): Tsunogai
  • Journal Title: Geochemical Journal Volume: 44 Pages: 477-487
  • Peer Reviewed
• [Journal Article] High-resolution measurement of multiple volatile organic compounds dissolved in seawater using equilibrator inlet-proton transfer reaction-mass spectrometry (EI-PTR-MS) (2010)
  • Author(s): Kameyama
  • Journal Title: Marine Chemistry Volume: 122 Pages: 59-73
  • Peer Reviewed
• [Journal Article] Methyl halides in surface seawater and marine boundary layer of the Northwest Pacific (2010)
  • Author(s): Ooki
  • Journal Title: Journal of Geophysical Research-Oceans Volume: 115
  • Peer Reviewed
• [Journal Article] Methyl halides in surface seawater and marine boundary layer of the Northwest Pacific (2010)
  • Author(s): Ooki, et al.(3^<rd> author)
  • Journal Title: Journal of Geophysical Research-Oceans Volume: 115
  • Peer Reviewed
• [Journal Article] Origin and fate of deep-sea seepingmethane bubbles at Kuroshima knoll, Ryukyu forearc region, Japan (2010)
  • Author(s): Tsunogai, et al.(6^<th> author)
  • Journal Title: Geochemical Journal Volume: 44 Pages: 477-487
  • Peer Reviewed
• [Presentation] Application of PTR-MS to an incubation experiment of the marine diatom Thalassiosira pseudonana (2012)
  • Author(s): Kameyama
  • Organizer: The 22nd V.M. Goldschmidt Conference.
  • Place of Presentation: Palaisdes congres, カナダ
• [Presentation] Application of PTR-MS to an incubation experiment of the marine diatom Thalassiosira pseudonana (2012)
  • Author(s): Sohiko Kameyama
  • Organizer: The 22nd V.M. Goldschmidt Conference
  • Place of Presentation: Palais des congr&egrave;s （カナダ）
• [Presentation] 高生物生産海域における海洋表層水中のDMS分布の制限因于-EI-PTR-MSを用いたDMS連続測定に基づく検討- (2011)
  • Author(s): 亀山宗彦、谷本浩志、猪俣敏、奥沢和浩、角皆潤、石井雅男、笹野大輔、吉川久幸
  • Organizer: 日本地球化学会2011年年会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2011-09-14
• [Presentation] 高生物生産海域における海洋表層水中のDMS分布の制限因子-EI-PTR-MSを用いたDMS連続測定に基づく検討- (2011)
  • Author(s): 亀山他
  • Organizer: 日本地球化学会
  • Place of Presentation: 札幌・北海道大学
• [Presentation] Analysis of variations and hotspots of DMS in surface seawater of the western North Pacific Ocean : Results with EI-PTR-MS (2010)
  • Author(s): Kameyama, et al.(1^<st> author)
  • Organizer: The 5^<th> International Symposium on Biological and Environmental Chemistry of DMS(P) and Related Compounds
  • Place of Presentation: インド・ゴア
  • Year and Date: 2010-10-20
• [Presentation] PTR-MSを用いたプロファイル法によるDMSおよびアセトンの大気-海洋間フラックス測定 (2010)
  • Author(s): 亀山他
  • Organizer: 日本地球化学会
  • Place of Presentation: 熊谷・立正大学
• [Presentation] Analysis of variations and hotspots of DMS in surface seawater of the western North Pacific Ocean: Results with EI-PTR-MS (2010)
  • Author(s): Kameyama
  • Organizer: The 5th International Symposium on Biological and Environmental Chemistry of DMS(P) and Related Compounds.
  • Place of Presentation: National Institute of Oceanography, インド