報告書番号

E284010

タイトル（和文）

IMPACT OF BACKGROUND OZONE ON THE GROUND-LEVEL OXIDANT CONCENTRATION IN THE METROPOLITAN AREA

タイトル（英文）

IMPACT OF BACKGROUND OZONE ON THE GROUND-LEVEL OXIDANT CONCENTRATION IN THE METROPOLITAN AREA

概要 （図表や脚注は「報告書全文」に掲載しております）

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概要 （英文）

OZONE CONCENTRATIONS WERE MEASURED AT URBAN AND RURAL STATIONS IN THE KANTO DISTRICT FROM AUGUST TO SEPTEMBER 1982.THE CONTRIBUTION OF BACKGROUND OZONE TO THE GROUND LEVEL AIR QUALITY IN THE TOKYO METROPOLITAN AREA WAS DISCUSSED BASED ON THE DATA OBTAINED.TYPICAL MEAN OZONE LEVELS OF 16-25 PPB WERE ESTIMATED IN THIS PERIOD. METEOROLOGICAL ANALYSIS SUGGESTED THAT INTRUSIONS OF STRATOSPHERIC OZONE INTO LOWER TROPOSPHERE TOOK PLACE BEHIND CYCLONIC DISTURBANCES. HOWEVER,THE HYPOTHESIS THAT STRATOSPHERIC OZONE CONTRIBUTES TO LARGE AMOUNTSOF OZONE IN THE POLLUTED ATMOSPHERE COULD NOT BE SUPPORTED FROM THE ANALYSIS. DIURNAL VARIATIONS OF OZONE CONENTRATION WERE GENERATED NOT BY THE INTRUSION OF STRATOSPHERIC OZONE BUT BY THE PHOTOCHEMICAL REACTION NEAR THE GROUND IN THE URBAN SUMMER ATMOSPHERE.

報告者

キーワード