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논문 기본 정보

자료유형
학술저널
저자정보
이태우 (국립환경과학원) 김지영 (국립환경과학원) 이종태 (국립환경과학원) 김정수 (국립환경과학원)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제28권 제4호
발행연도
2012.8
수록면
396 - 410 (15page)

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초록· 키워드

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The purpose of this study is to quantify the contribution of high emitting vehicles to mobile emission inventories. Analyzed emission data include NOx, HC, and CO results, which were measured through the vehicle Inspection and Maintenance (I/M) program in Seoul metropolitan area. The high emitting vehicles were identified as the top 5% worst polluting cars of the fleet. We estimated that 5% of the gasoline passenger car fleet, which is high emitters, generated 25.5% of NOx, 34.5% of HC, and 66.1% of CO emissions of total inventories for gasoline passenger car fleet in year 2010. In the study, we identified that the older vehicles (older than ten years) and high mileage vehicles (more than 120,000 km driven) comprised high emitter fleet with 70.9% and 71.2%, respectively.
The emission contribution of high emitters became larger in younger fleet than in the older fleet. This is due to the reduced emission rates in newly manufactured vehicles, which were developed under the more stringent emission regulation limits. This analysis implies that high emitters could be responsible for an even larger fraction of total vehicular emissions as more advanced technology vehicles are being incorporated into the current vehicle fleet.
The findings suggested that the high emitting vehicles should be primarily considered for in-use vehicle emission management program, such as I/M, accelerated vehicle retirement, or catalytic converter replacement, in order to enhance the effectiveness of selected program.

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Abstract
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2. 연구방법
3. 결과 및 고찰
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UCI(KEPA) : I410-ECN-0101-2013-539-003395790