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NTIS 바로가기환경영향평가 = Journal of environmental impact assessment, v.28 no.2, 2019년, pp.113 - 128
박종성 (국립환경과학원 대기환경연구과) , 송인호 (국립환경과학원 대기환경연구과) , 김현웅 (국립환경과학원 대기환경연구과) , 임형배 (국립환경과학원 대기환경연구과) , 박승명 (국립환경과학원 대기환경연구과) , 신선아 (국립환경과학원 대기환경연구과) , 신혜정 (국립환경과학원 대기환경연구과) , 이상보 (국립환경과학원 대기환경연구과) , 김정호 ((주)에이피엠엔지니어링)
The concentration and coating thickness of black carbon (BC) were measured along with fine dust in the fall of 2018, at the Seoul Metropolitan Area Intensive Monitoring Station (SIMS). In fall, the concentration of
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
블랙카본의 특징은? | 내연기관 및 소각 등의 연소과정을 통해 배출되는 블랙카본(BC, Black Carbon) 및 검댕입자(Soot particle)는 빛을 산란시키기도 하지만 주로 흡수하여 보유하는 특성을 가지고 있어 지구기후복사에너지 균형에 중요한 역할을 하는 것으로 알려져 있다(Bond et al. 2013). | |
미세먼지와 블랙카본의 일변동 분포를 분석한 결과는? | 미세먼지와 블랙카본의 일변동 분포를 분석한 결과, 교통 혼잡 시간대에 급격히 증가하는 것으로 나타났다. 교통 혼잡 시간대에는 PM2.5가 평상시의 30 % 수준이 증가하였으며, 블랙카본은 약 50 % 이상 증가하여, 자동차와 같은 이동 오염원에 의한 영향으로 PM2.5에 대한 블랙카본의 기여도가 크게 증가하는 것을 시사하였다. | |
도시지역 BC 및 검댕입자의 오염원은? | 도시지역에서는 BC 및 검댕입자의 오염원으로서 자동차를 주목할 수 있다. 자동차엔진에서 가솔린과 디젤기관 연료원의 주성분은 C8H18, C12H26이며, 이론적인 완전연소 조건에서는 대부분 CO2와 H2O로 분해되지만 연료대비 산소가 부족하거나 연료와 산소의 불안정한 혼합으로 인한 불완전연소 조건에서는 탄화수소화합물이 유기 및 무기탄소와 같은 탄소성화합물로 배출된다. |
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