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자료유형
학술저널
저자정보
한범순 (서울대학교) 곽경환 (강원대학교) 백종진 (서울대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제32권 제5호
발행연도
2016.10
수록면
536 - 546 (11page)

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The diurnal variations of O₃ and NO₂ in an urban park and the effects of air temperature and wind speed on the diurnal variations are investigated. O₃ and NO₂ concentrations were observed at a site in an urban park of Seoul from 27 July 2015 to 9 August 2015. The O₃ and NO₂ concentrations observed in the urban park are compared to those observed at the Gangnam air quality monitoring station (AQMS). The O₃ concentration is higher in the urban park than at the Gangnam AQMS in the daytime because the amount of O₃ dissociated by NO is smaller as well as partly because the amount of O₃ produced in the oxidation process of biogenic volatile organic compounds (VOCs) is larger in the urban park than at the Gangnam AQMS. The NO₂ concentration is lower in the urban park than at the Gangnam AQMS during day and night because the observation site in the urban park is relatively far from roads where NOx is freshly emitted from vehicles. The difference in NO₂ concentration is larger in the daytime than in the nighttime. To examine the effects of air temperature and wind speed on the diurnal variations of O₃ and NO₂, the observed O₃ and NO₂ concentrations are classified into high or low air temperature and high or low wind speed days. The high O₃ and NO₂ concentrations in the daytime appear for the high air temperature and low wind speed days. This is because the daytime photochemical processes are favorable when the air temperature is high and the wind speed is low. The scatter plots of the daytime maximum O₃ and minimum NO₂ concentrations versus the daytime averages of air temperature and wind speed show that the daytime maximum O₃ and minimum NO₂ concentrations tend to increase as the air temperature increases or the wind speed decreases. The daytime maximum O₃ concentration is more sensitive to the changes in air temperature and wind speed in the urban park than at the Gangnam AQMS.

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Abstract
1. 서론
2. 실험 방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2017-539-001636470