| Project/Area Number |
09480115
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | THE UNIVERSITY OF TOKYO |
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Principal Investigator |
KAJII Yoshizumi RCAST, THE UNIV. OF TOKYO, ASSOCIATE, 先端科学技術研究センター, 助教授 (40211156)
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| Co-Investigator(Kenkyū-buntansha) |
BANDOW Hiroshi OSAKA-PREFECT. UNIV. PROFESSOR, 工学部, 教授 (80124353)
HIROKAWA Jun RCAST, THE UNIV. OF TOKYO, RES. ASSOCIATE, 先端科学技術研究センター, 助手 (20262115)
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| Project Period (FY) |
1997 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥13,800,000 (Direct Cost: ¥13,800,000)
Fiscal Year 1999: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1998: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1997: ¥11,100,000 (Direct Cost: ¥11,100,000)
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| Keywords | OH RADICAL / HOィイD22ィエD2 RADIAL / NOx / ISOPRENE / SOLAR ULTRA-VIOLET / OZONE PRODUCTION / NOx / ボックスモデル計算 / 光化学オゾン生成 / HO2ラジカル / NOX / 反応性炭化水素 / RO2ラジカル / レーザー誘起蛍光 / 光分解 / 多重反射系 / 波長可変色素パルスレーザー / 非メタン炭化水素 / 大気光化学反応理論 |
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| Research Abstract |
DEVELOPMENT OF INSTRUMENT TO MEASURE THE CONCENTRATION OF HOX RADICALS IN AMBIENT AIR BY USING LASER INDUCED FLUORESCENCE TECHNIQUE WAS PERFORMED. TO GET ADVANCED KNOWLEDGE OF ATMOSPHERIC CHEMISTRY SYNTHETIC OBSERVATIONAL STUDIES OF OH AND OTHER REACTIVE TRACE GASES IN REMOTE ATMOSPHERE WERE CARRIED OUT IN 1998 AT OKI ISLAND AND IN 1999 AT OKINAWA ISLAND. IN OKI OBSERVATION WE FOUND NEW HOX RADICAL SOURCE IN NIGHTTIME AS OZONOLYSIS REACTION WITH BIOGENIC OLEFINS. IN OKINAWA WE SUCCEEDED TO MEASURE OH RADICAL AND AVERAGE CONCENTRATION IN NOON TIME WAS DETERMINED TO BE CA. 3 X 10ィイD16ィエD1 RADICALS CMィイD1-3ィエD1. OZONE PRODUCTION POTENTIAL IS FOUND To BE QUITE HIGH EVEN IN THE CLEAN REMOTE ISLAND LIKE OKINAWA. THERE ARE CONSIDERABLE AMOUNTS OF OZONE PRECOURSORS LIKE BIOGENIC OLEFINS AND ALSO BIGENIC NOx. OZONE PRODUCITON RATE IN NOON TIME WAS ESTIMATED TO BE 4 PPPB DAYィイD1-1ィエD1.
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