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논문 기본 정보

자료유형
학술저널
저자정보
이제승 (서울특별시보건환경연구원) 최유리 (서울특별시보건환경연구원) 김현수 (서울특별시보건환경연구원) 어수미 (서울특별시보건환경연구원) 김민영 (서울특별시보건환경연구원)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제27권 제5호
발행연도
2011.10
수록면
558 - 568 (11page)

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초록· 키워드

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Hazardous volatile organic compounds (HVOCs) have been increasingly getting concern in urban air chemistry due to photochemical smog as well as its toxicity or potential hazards. In this study, we investigated their concentra- tions and the properties in tunnel, urban roadside and residential area. As a result, among 36HVOCs measured in this study, BTEX (benzene, toluene, ethylbenzene, xylene) and dichlorodifluoromethane, 1,2,4-trimethylbenzene, trichlorofluoromethane were detected above the concentration of 1 μg/m<sup>3</sup> in every sampling site and the most abun- dant compound was toluene. The other compounds were detected at trace level or below the detection limit. In addi- tion, we found that three CFCs (chlorofluorocarbons), such as CFC-12, CFC-11, CFC-113, were persistently detected because of the emission in the past. Toluene to benzene ratio (T/B) at tunnel and roadside were calculated to be 4.3~5.3 and at residential area 15.4, suggesting that the residential area had several emission sources other than car exhaust. The ratio of X/E (m,p-xylene to ethylbenzene) ratio was calculated to be 1.8~2.1 at tunnel, 1.7 at roadside and 1.2 at residential area, which means this ratio reflected well the relative photochemical reactivity between these com- pounds. Good correlation between m,p-xylene and ethylbenzene (r<sup>2</sup> >0.85) were shown in every study sites. This indicated that correlation between C<sub>2</sub>-alkylbenzenes were not severely affected by 3-way catalytic converter. In this study, it was demonstrated that the concentration of benzene was very low, compared with national air quality standard (annual average of 5 μg/m<sup>3</sup>). Its concentration were 2.52 μg/m<sup>3</sup> in roadside and 1.34 μg/m<sup>3</sup> in residential area. We thought this was the result of persistent policy implementation including the reduction of benzene content in gasoline enforced on January 1, 2009.

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Abstract
1. 서론
2. 연구방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2013-539-000954175