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Environmental Technology Research Network
in the Asia-Pacific Region

DB for Research Project
Category(1) : Ocean
Category(2) : Reaction mechanism


  1. Project Name
  2. Duration
  3. Research Catagory 1
  4. Research Catagory 2
  5. Research Field
  6. Researchers
  7. Affiliation 1
  8. Affiliation 2
  9. Address
  10. Country
  11. Phone
  12. Fax
  13. Project Summary
  14. Publications
  15. International Joint Study with

National Institute for Resources and Environment(NIRE), Japan

  1. Japanese Study on the Behavior of Greenhouse Gases and Aerosols
  2. 1990-1999
  3. global change, air, water, ocean
  4. counter measures, reaction mechanism, measurement, monitoring, modeling
  5. chemistry, geophysics
  6. Takashi IBUSUKI, Koji TAKEUCHI, Shuzo KUTSUNA, Kazuhide KOIKE, Hitomi KOBARA
  7. Photoenergy Application Div., Global Warming Control Dept.
  8. NIRE, AIST, MITI
  9. 16-3 Onogawa, Tsukuba, Ibaraki 305
  10. Japan
  11. 81-298-61-8168
  12. 81-298-61-8158
  13. This project aims at conducting research and observation on long-term trend of greenhouse materials and on the material circulation and quantitative analysis of natural balance in order to estimate and predict influence of anthropogenic and natural greenhouse gases.
  1. Elucidation of Material Cycle in Coasl Environment and Development of Monitoring Techniques 2 1994-1998
  3. water, ocean, hazardous substances, sediments
  4. measurement, fate, monitoring, reaction mechanism
  5. chemistry
  6. Akira MIYAZAKI, Kenji BANSHO, Mamoru TOMINAGA, Hiroaki TAO, Akira@KIMURA, Takashi IMAGAWA, Nobuyoshi YAMASHITA
  7. Water Analysis Lab, Hydrospheric Environmental Protection Dept.
  8. NIRE, AIST, MITI
  9. 16-3 Onogawa, Tsukuba, Ibaraki 305
  10. Japan
  11. 81-298-61-8338
  12. 81-298-61-8308
  13. The objectives of this project are to use artificial chemical substances, rare earth metals, heavy metals and lead isotopes as tracers to investigate the material cycle in the coastal environments and to develop analytical techniques and monitoring technique. Based on three-dimensional analysis of the tracers, the transition in the flow of substances into the marine environments in recent years and behavior in the environment will be elucidated.
  14. 1)Nobuyoshi Yamashita, Ultra-trace level measurement of non-orhto planar PCBs in sea water using in situ filtrate/adsorption water sampler, Journal of NIRE, 4, 4, 315(1995)
  15. Kiel Univ.,Germany

Hokkaido National Industrial Research Institute(HNIRI), Japan

  1. Research on Deep Sea Sequestering of Carbon Dioxide
  2. 1991-1998
  3. global change, ocean, carbon dioxide. air
  4. reaction mechanism, impact assessment
  5. physics, physical chemistry
  6. Jun'ichi KAWABATA, Sogo SAYAMA, Takeshi OKUTANI, Saburo ITO,Hideo NARITA, Tsutomu UCHIDA
  7. Materials Division,Director of Research Planning, Bioscience and Chemistry Division, Resource Chemistry Section, Resources and Energy Division
  8. HNIRI, AIST, MITI
  9. 2-17 Tsukisamu-higashi, Toyohira-ku, Sapporo, Hokkaido 062
  10. Japan
  11. 81-11-857-8940
  12. 81-11-857-8981
  13. This study aims to develop a new method for the sequestering of CO2 in deep sea as CO2 hydrate. Under the temperature and pressure conditions of deep sea, the mixture of CO2 and water forms the crystalline molecular complex, called CO2 hydrate clathrate. CO2 molecules is enclosed within the lattice formed by water molecules, which are strongly hydrogen bonded with each other. As the density of CO2 hydrate is higher than that of sea water, CO2 hydrate would be sequestered in deep sea. To investigate the feasibility of deep sea CO2 sequestering, it is necessary to study the physical properties of CO2 hydrate. The object of this study are to investigate the formation and dissociation processes of CO2 hydrate and its physical properties.
  14. 1)Tsutomu Uchida et al., Raman spectroscopic analysis of growth process of CO2 hydrates (in Japanese), CO2 taisaku-gijutsu to kiso-kenkyu, Kagaku Kogaku symposium series 38, 125-130, 1993
    2)Tsutomu Uchida et al., Physical data of CO2 hydrate, Direct Ocean Disposal of Carbon Dioxide (ed. by N. Handa), Terrapub. Tokyo (in press)
  15. none
  1. Formation of biodegradable plastics from natural macromolecules
  2. 1993-1996
  3. ocean,global change,wastes
  4. reaction mechanism,source inventory
  5. chemistry,biology
  6. Jun HOSOKAWA,takahiro HIROTSU,Masashi NISHIYAMA,Hiroshi KABEYA,Kazutosi YOSHIHARA,Takamasa KUBO,Takashi ENDO,Ryouichi KITAGAWA
  7. Biological Material Div,Marine Resources Dept,SNIRI,AIST,MITI
  8. 2217-14,Hayashi-cho,Takamatsu,Kagawa 761-03
  9. Japan
  10. 81-878-69-3511
  11. 81-878-69-3553
  12. Theme of this study is to investigate novel biodegradable plastics from natural polymers (cellulose,chitosan,etc.) a little modified. The material has functions as physiological activity, other than biodegradability.
  13. 1)Jun Hosokawa et.al.,Biodegradable Film Derived from Chitosan and Homogenized Cellulose,Industrial & Engineering Chemistry Research,29,880-805,1990.
    2)Jun Hosokawa et.al.,Reaction between Chitosan and Cellulose on Biodegradable Composite Film Formation,Industrial & Engineering Chemistry Research,30,788-792,1991.
    3)Ryouichi Kitagawa et.al.,New Application of Cellulose and Chitosan for Biodegradable Polymer Material,Proc. 3rd Int. Sci. Workshop on Biodegradable Plastics and Polymers,Osaka,Japan,Eds. Y.Doi & K.Fukuda,Elsevier,Amsterdam,451-458,1994.