Biogeochemical studies on the volatile components at ocean surface

2010 Fiscal Year Final Research Report

• Project Area: Linkages in biogeochemical cycles between surface ocean and lower atmosphere
• Project/Area Number: 18067001
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Hokkaido University
• Principal Investigator: TSUNOGAI Urumu Hokkaido University, 大学院・理学研究院, 准教授 (50313367)
• Co-Investigator(Kenkyū-buntansha): NAKAGAWA Fumiko 北海道大学, 大学院・理学研究院, 助教 (70360899) ; TANIMOTO Hiroshi 独立行政法人国立環境研究所, 大気圏環境研究領域・大気化学研究室, 室長 (30342736) ; INOMATA SAtoshi 独立行政法人国立環境研究所, 大気圏環境研究領域・大気化学研究室, 主任研究員 (80270586)
• Project Period (FY): 2006 – 2010
• Keywords: 大気化学 / 海洋化学 / 生物地球化学 / 気候変動 / 微量気体 / PTR-MS / 同位体

Research Abstract

We developed an equilibrator inlet-proton transfer reaction-mass spectrometry (EI-PTR-MS) system for high-resolution measurement of the concentrations of multiple volatile organic compounds (VOCs) dissolved in seawater. The equilibration of six VOCs (dimethyl sulfide (DMS), isoprene, propene, acetone, acetaldehyde, and methanol) between seawater samples and the carrier gas, and the response time of the system, were evaluated by means of a series of laboratory experiments. Although equilibrium between the seawater sample and the carrier gas in the equilibrator was not achieved for isoprene and propene (likely because of their low water solubility), the other species did reach equilibrium. The EI-PTR-MS system was deployed during a research cruise in the western North Pacific Ocean. Evaluation of several seawater sampling methods indicated that there was no significant contamination from the sampling apparatus for the target VOCs. For DMS and isoprene, comparison of EI-PTR-MS measurements with measurements obtained with a membrane equilibrator-gas chromatography/mass spectrometry system showed generally good agreement. EI-PTR-MS captured the temporal variations of dissolved VOCs, including small-scale variability, which demonstrates that the performance of the EI-PTR-MS system was sufficient for simultaneous and continuous measurements of multiple VOCs of environmental importance in seawater.

Research Products

• [Journal Article] Determination of total N_2 fixation rates in the ocean taking into account both the particulate and filtrate fractions. (2010)
  • Author(s): Konno, U., U.Tsunogai, D.D.Komatsu, S.Daita, F.Nakagawa, A.Tsuda, T.Matsui, Y.-J.Eum, K.Suzuki
  • Journal Title: Biogeosciences 7 Pages: 2369-2377
  • Peer Reviewed
• [Journal Article] Origin and fate of deep-sea seeping methane bubbles at Kuroshima knoll, Ryukyu forearc region, Japan. (2010)
  • Author(s): Tsunogai, U., A.Kosaka, N.Nakayama, D.D.Komatsu, U.Konno, S.Kameyama, F.Nakagawa, H.Sumino, K.Nagao, K.Fujikura, H.Machiyama
  • Journal Title: Geochemical Journal 44 Pages: 461-476
  • 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, S., H.Tanimoto, S.Inomata, U.Tsunogai, A.Ooki, S.Takeda, H.Obata, A.Tsuda, M.Uematsu
  • Journal Title: Marine Chemistry 122 Pages: 59-73
  • Peer Reviewed
• [Journal Article] A quantitative examination of the detection sensitivities of proton-transfer reaction mass spectrometry for gaseous 2-propanol and acetic acid. (2010)
  • Author(s): Inomata, S., H.Tanimoto
  • Journal Title: Bull.Chem.Soc.Japan 83(8) Pages: 900-904
  • Peer Reviewed
• [Journal Article] Significance of N_2 fixation in dissolved fractions of organic nitrogen. (2010)
  • Author(s): Konno, U., U.Tsunogai, D.D.Komatsu, S.Daita, F.Nakagawa, A.Tsuda, T.Matsui, Y.-J.Eum, K.Suzuki
  • Journal Title: Biogeosciences 7 Pages: 2369-2377
  • Peer Reviewed
• [Journal Article] Tracing the fate of atmospheric nitrate deposited onto a forest ecosystem in eastern Asia using Δ^<17>O. (2010)
  • Author(s): Tsunogai, U., D.D.Komatsu, S.Daita, G.A.Kazemi, F.Nakagawa, I.Noguchi, J.Zhang
  • Journal Title: Atmospheric Chemistry and Physics 10 Pages: 1809-1820
  • Peer Reviewed
• [Journal Article] Simultaneous determination of δ^<15>N and δ^<18>O of N_2O and δ^<13>C of CH_4 in nanomolar quantities from a single water sample. (2010)
  • Author(s): Hirota, A., U.Tsunogai, D.D.Komatsu, F.Nakagawa
  • Journal Title: Rapid Communications in Mass Spectrometry 24 Pages: 1085-1092
  • Peer Reviewed
• [Journal Article] Equilibrator inlet-proton transfer reaction-mass spectrometry (EI-PTR-MS) for sensitive, high-resolution measurement of dimethyl sulfide dissolved in seawater. (2009)
  • Author(s): Kameyama, S., H.Tanimoto, S.Inomata, U.Tsunogai, A.Ooki, Y.Yokouchi, S.Takeda, H.Obata, M.Uematsu
  • Journal Title: Analytical Chemistry 81 Pages: 9021-9026
  • Peer Reviewed
• [Journal Article] Enrichment of nitrous oxide in a water column in the Bering and Chukchi Sea area. (2009)
  • Author(s): Hirota, A., A.Ijiri, D.D.Komatsu, S.B.Ohkubo, F.Nakagawa, U.Tsunogai
  • Journal Title: Marine Chemistry 116 Pages: 47-53
  • Peer Reviewed
• [Journal Article] Enrichment of alkanes within a phytoplankton bloom during an in situ iron enrichment experiment in the western subarctic Pacific. (2009)
  • Author(s): Kameyama, S., U.Tsunogai, F.Nakagawa, M.Sasakawa, D.D.Komatsu, A.Ijiri, J.Yamaguchi, T.Horiguchi, H.Kawamura, A., Yamaguchi, A.Tsuda
  • Journal Title: Marine Chemistry 115 Pages: 92-101
  • Peer Reviewed
• [Journal Article] Determination of formaldehyde mixing ratios in air with PTR-MS : Laboratory experiments and field measurements. (2008)
  • Author(s): Inomata, S., H.Tanimoto, S.Kameyama, U.Tsunogai, H.Irie, Y.Kanaya, Z.Wang
  • Journal Title: Atmospheric Chemistry and Physics 8 Pages: 273-284
  • Peer Reviewed
• [Journal Article] Carbon isotopic characterization for the origin of excess methane in subsurface seawater. (2008)
  • Author(s): Sasakawa, M., U.Tsunogai, S.Kameyama, F.Nakagawa, Y.Nojiri, A.Tsuda
  • Journal Title: Journal of Geophysical Research 113 Pages: doi:10.1029/2007JC004217.
  • Peer Reviewed
• [Journal Article] Determination of the ^<15>N/^<14>N, ^<17>O/^<16>O, and ^<18>O/^<16>O ratios of nitrous oxide by using continuous-flow isotope ratio mass spectrometry. (2008)
  • Author(s): Komatsu DD, Ishimura T, Nakagawa F, Tsunogai U.
  • Journal Title: Rapid Communications in Mass Spectrometry 22 Pages: 1587-1596
  • Peer Reviewed
• [Journal Article] Sensitive determinations of stable nitrogen isotopic composition of organic nitrogen through chemical conversion to N_2O. (2008)
  • Author(s): Tsunogai, U., T.Kido, A.Hirota, S.B.Ohkubo, D.D.Komatsu, F.Nakagawa
  • Journal Title: Rapid Communications in Mass Spectrometry 22 Pages: 345-354
  • Peer Reviewed
• [Journal Article] Assessment of winter fluxes of CO_2 and CH_4 in boreal forest soils of central Alaska estimated by the profile method and the chamber method : a diagnosis of methane emission and implications for the regional carbon budget. (2007)
  • Author(s): Kim, Y.-S., N.Tanaka, F.Nakagawa, U.Tsunogai, M.Ueyama, Y.Harazono
  • Journal Title: Tellus 59B Pages: 223-233
  • Peer Reviewed
• [Presentation] High-resolution measurement of DMS and volatile organic compounds dissolved in seawater using equilibrator inlet- proton transfer reaction-mass spectrometry (EI-PTR-MS). (2010)
  • Author(s): Kameyama, S., H.Tanimoto, S.Inomata, U.Tsunogai, A.Ooki, Y.Yokouchi, S.Takeda, H.Obata, A.Tsuda, M.Uematsu
  • Organizer: American Geophysical Union 2010 Fall Meeting
  • Place of Presentation: San Francisco, USA.
  • Year and Date: 2010-12-15
• [Presentation] Sensitive, high-resolution measurement of dimethyl sulfide dissolved in seawater using proton transfer reaction-mass spectrometry : Development, applications, and first results. (2010)
  • Author(s): Tanimoto, H., S.Kameyama, S.Inomata, U.Tsunogai
  • Organizer: The 5th International Symposium on biological and environmental chemistry of DMS(P) and related compounds
  • Place of Presentation: Goa, India.
  • Year and Date: 2010-10-20
• [Presentation] Analysis of variations and hotspots of dimethyl sulfide in surface seawater of the western North Pacific Ocean : Results with equilibrator inlet-proton transfer reactionmass spectrometry (EI-PTR-MS). (2010)
  • Author(s): Kameyama, S., H.Tanimoto, S.Inomata, U.Tsunogai, A.Ooki, Y.Yokouchi, S.Takeda, H.Obata, A.Tsuda, M.Uematsu
  • Organizer: The 5th International Symposium on biological and environmental chemistry of DMS(P) and related compounds
  • Place of Presentation: Goa, India.
  • Year and Date: 2010-10-20
• [Presentation] 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): Tanimoto, H., S.Kameyama, S.Inomata, U.Tsunogai, A.Ooki, S.Takeda, H.Obata, A.Tsuda, M.Uematsu
  • Organizer: 3rd Bi-Annual Symposium "Future Ocean", Chemistry at Marine Interfaces.
  • Place of Presentation: Kiel.
  • Year and Date: 2010-09-16
• [Presentation] 大気・海洋表層の有機化合物:高時間分解能計測からプロセスを探る (2010)
  • Author(s): 谷本浩志
  • Organizer: 2010年度日本海洋学会春季大会シンポジウム「太平洋における物質循環のキープロセス(招待講演)
  • Place of Presentation: 東京海洋大学大講義室
  • Year and Date: 2010-03-26
• [Presentation] 窒素栄養塩類の分子別窒素同位体組成の鉛直分布と亜熱帯海域における窒素循環 (2009)
  • Author(s): 角皆潤, 代田里子, 今野祐多, 廣田明成, 小松大祐, 中川書子
  • Organizer: 東京大学海洋研究所共同利用シンポジウム「微量元素・同位体を用いた海洋の生物地球化学研究の最新動向と展望」
  • Place of Presentation: 東京大学海洋研究所講堂
  • Year and Date: 20090629-20090630
• [Presentation] 西部北太平洋亜熱帯域におけるδ^<15>N_<NO3->の鉛直分布 (2009)
  • Author(s): 角皆潤, 小松大祐, 代田里子, 大久保智, 今野祐多, 中川書子
  • Organizer: 日本海洋学会春季大会
  • Place of Presentation: 東京大学本郷キャンパス
  • Year and Date: 20090405-20090409
• [Presentation] Recent PTR-MS activities at NIES : Instrumentation and field measurements. (2009)
  • Author(s): Tanimoto, H., S.Inomata, S.Kameyama, U.Tsunogai
  • Organizer: 4th international PTR-MS conference(招待講演)
  • Place of Presentation: Obergurgl.
  • Year and Date: 20090216-20090221
• [Presentation] EI-PTR-MSを用いた表層海水中DMS及びVOCの高時間分解能測定 (2009)
  • Author(s): 亀山宗彦, 谷本浩志, 猪俣敏, 角皆潤, 大木淳之, 横内陽子, 武田重信, 小畑元, 津田敦, 植松光夫
  • Organizer: 東大海洋研共同利用研究集会「白鳳丸航海KH-08-02データシンセシス
  • Place of Presentation: 東京大学海洋研究所講堂
  • Year and Date: 2009-12-11
• [Presentation] Tracing nitrate and nitrous oxide in surface ocean using stable isotopes (Invited Plenary Talk) (2009)
  • Author(s): Tsunogai, U.
  • Organizer: SOLAS Open Science Conference
  • Place of Presentation: Barcelona, Spain(Plenaryセッション招待講演)
  • Year and Date: 2009-11-16
• [Presentation] Significance of N_2 fixation in dissolved fractions of organic nitrogen. (2009)
  • Author(s): Konno, U., U.Tsunogai, D.D.Komatsu, S.Daita, F.Nakagawa, A.Tsuda, T.Matsui, Y.-J.Eum, K.Suzuki
  • Organizer: SOLAS Open Science Conference
  • Place of Presentation: Barcelona, Spain.
  • Year and Date: 2009-11-16
• [Presentation] High-resolution measurement of multiple volatile organic compounds dissolved in seawater using equilibrator inlet-proton transfer reaction-mass spectrometry (EI-PTR-MS). (2009)
  • Author(s): Tanimoto, H., S.Kameyama, S.Inomata, U.Tsunogai, A.Ooki, S.Takeda, H.Obata, A.Tsuda, M.Uematsu
  • Organizer: SOLAS Open Science Conference
  • Place of Presentation: Barcelona, Spain.
  • Year and Date: 2009-11-16
• [Presentation] Equilibrator Inlet-Proton Transfer Reaction-Mass Spectrometry (EI-PTR-MS) for sensitive, high-resolution measurement of dimethyl sulfide dissolved in seawater. (2009)
  • Author(s): Kameyama, S., H.Tanimoto, S.Inomata, U.Tsunogai, A.Ooki, Y.Yokouchi, S.Takeda, A.Ooki, Y.Yokouchi, S.Takeda, H.Obata, A.Tsuda, M.Uematsu
  • Organizer: SOLAS Open Science Conference
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 2009-11-16
• [Presentation] EI-PTR-MSを用いた西部北太平洋亜寒帯域における溶存揮発性有機化合物(VOC)の高時間分解能測定 (2009)
  • Author(s): 亀山宗彦
  • Organizer: 2009年度日本海洋学会秋季大会
  • Place of Presentation: 京都大学吉田キャンパス
  • Year and Date: 2009-09-26
• [Presentation] 「改良^<15>Nトレーサー法による西部北太平洋海域における海洋窒素固定速度定量」(2C06) (2009)
  • Author(s): 今野祐多・小松大祐・代田里子・桑原潤・木戸唯介・中川書子・角皆潤・松井崇人・鈴木光次
  • Organizer: 2009年度日本地球化学会第56回年会
  • Place of Presentation: 広島大学
  • Year and Date: 2009-09-16
• [Presentation] Microscale heterogeneities in the stable carbon and oxygen isotopic compositions of the international standard calcite materials. (2008)
  • Author(s): Ishimura, T., Tsunogai, U., Nakagawa, F.
  • Organizer: AGU 2008 Fall Meeting
  • Place of Presentation: San Francisco, USA.
  • Year and Date: 20081215-20081219
• [Presentation] 亜熱帯域の大気-海洋相互作用 (2008)
  • Author(s): 角皆潤, 小松大祐, 代田里子, 今野祐多, 桑原潤, 中川書子, 亀山宗彦, 猪俣敏, 谷本浩志
  • Organizer: 東京大学海洋研究所共同利用シンポジウム「亜熱帯海洋学の最前線
  • Place of Presentation: 東京大学農学部
  • Year and Date: 20081211-20081212
• [Presentation] 「海洋表層における生物起源微量気体の生成・分解過程とその気候変化への応答」W-PASS (2008)
  • Author(s): 角皆潤, 中川書子, 谷本浩志, 猪俣敏
  • Organizer: 第3回特定領域研究「大気海洋物質循環」全体会議
  • Place of Presentation: 埼玉県熊谷市ヘリテイジ・リゾート
  • Year and Date: 20081110-20081112
• [Presentation] 海洋における総一次生産量定量に向けた溶存酸素分子の高精度三酸素同位体組成定量法開発 (2008)
  • Author(s): 佐久間博基, 石村豊穂, 中川書子, 角皆潤
  • Organizer: 2008年度日本質量分析学会同位体比部会
  • Place of Presentation: 愛知県民の森
  • Year and Date: 20081105-20081107
• [Presentation] メタンとエタンと一酸化二窒素の濃度と炭素・窒素・酸素安定同位体組成を同時に定量する (2008)
  • Author(s): 角皆潤, 廣田明成, 小松大祐, 中川書子
  • Organizer: 2008年度日本質量分析学会同位体比部会
  • Place of Presentation: 愛知県民の森
  • Year and Date: 20081105-20081107
• [Presentation] 三酸素同位体指標を用いた大気中一酸化二窒素の収支について (2008)
  • Author(s): 小松大祐, 石村豊穂, 中川書子, 角皆潤
  • Organizer: 日本地球惑星科学連合2008年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 20080525-20080530
• [Presentation] PTR-MS-based method for measuring dissolved nonmethane hydrocarbons (or volatile organic compounds) in seawater : Instrumentation and preliminary results. (2008)
  • Author(s): Kameyama, S., Tanimoto, H., Inomata, S., Tsunogai, U.
  • Organizer: 2008 Ocean Sciences Meeting
  • Place of Presentation: Orlando, USA.
  • Year and Date: 20080302-20080307
• [Presentation] Source of D-enriched hydrogen molecule in urban areas ; photochemical decomoposition of anthropogenic NMHCs? (2007)
  • Author(s): Konno, U., Komatsu, D.D., Tsunogai, U., Nakagawa, F.
  • Organizer: AGU 2007 Fall Meeting
  • Place of Presentation: San Francisco
  • Year and Date: 20071210-20071214
• [Presentation] Enrichment of nitrous oxide in water column of Bering sea and Chukchi sea. (2007)
  • Author(s): Hirota, A., A.Ijiri, D.D.Komatsu, S.B.Ohkubo, F.Nakagawa, U.Tsunogai
  • Organizer: OS43B-1241, AGU 2007 Fall Meeting
  • Place of Presentation: San Francisco
  • Year and Date: 20071210-20071214
• [Presentation] Determination of formaldehyde mixing ratios in polluted air with PTR-MS : Laboratory experiments and field measurements. (2007)
  • Author(s): Inomata, S., H.Tanimoto, S.Kameyama, U.Tsunogai, H.Irie, Y.Kanaya, Z.Wang
  • Organizer: AGU 2007 Fall Meeting
  • Place of Presentation: San Francisco
  • Year and Date: 20071210-20071214
• [Presentation] Determination on the Triple Oxygen isotopic Compositions of Nitrate in Ocean. (2007)
  • Author(s): Tsunogai, U., D.D.Komatsu, S.B.Ohkubo, T.Ishimura, S.Daita, F.Nakagawa
  • Organizer: 21st Century COE International Symposium on The Origin and Evolution of Natural Diversity
  • Place of Presentation: Hokkaido University.
  • Year and Date: 20071001-20071005
• [Presentation] Determination of triple oxygen isotopic compositions of nitrate by using continuous-flow isotope ratio MS. (2007)
  • Author(s): Komatsu, D.D., S.B.Ohkubo, T.Ishimura, F.Nakagawa, U.Tsunogai
  • Organizer: 21st Century COE International Symposium on The Origin and Evolution of Natural Diversity (poster)
  • Place of Presentation: Hokkaido University.
  • Year and Date: 20071001-20071005
• [Presentation] High precision dissolved trace gas monitoring in ocean using membrane inlet mass spectrometry (2007)
  • Author(s): Ohya, T., Konno, U., Hirota, A., Komatsu, D.D., Ishimura, T., Nakagawa, F., Tsunogai, U.
  • Organizer: International Symposium on The Origin and Evolution of Natural Diversity (poster), Sapporo, Japan
  • Place of Presentation: Hokkaido University.
  • Year and Date: 20071001-20071005
• [Presentation] Accurate determination of formaldehyde mixing ratios in polluted air with PTR-MS : Laboratory characterization and field measurements. (2007)
  • Author(s): Kameyama, S., Inomata, S., Tanimoto, Tsunogai, U., Irie, H., Kanaya, Y.
  • Organizer: 12th Asian Chemical Congress
  • Place of Presentation: Kuala Lumpur.
  • Year and Date: 20070823-20070825
• [Book] 生物学大辞典(「物質循環」「炭素循環」「窒素循環」「再生産」「燐の循環」執筆) (2010)
  • Author(s): 石川統・黒岩常祥・塩見正衞・松本忠夫・守隆夫・八杉貞雄・山本正幸編
  • Total Pages: 1634
  • Publisher: 東京化学同人
• [Book] 実験化学講座(第5版) 第20-2巻環境化学(「第3.1.16章同位体比測定(p.256-265)」執筆) (2007)
  • Author(s): 日本化学会編
  • Total Pages: 519
  • Publisher: 丸善
• [Book] 地球化学講座第7巻環境の地球化学(「第6章メタンハイドレートと地球環境(p.161-182)」執筆) (2007)
  • Author(s): 蒲生俊敬編
  • Publisher: 倍風館