대도시 유해대기오염물질 관리를 위한 블랙카본 모니터링
Black Carbon Monitoring for Managing Hazardous Air Pollutants in the Metropolitan Area
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PM은 오늘날 국제적으로 가장 널리 통용되는 먼지의 지표이다. 우리나라도 1995년 PM10 환경기준을 도입하였고 2015년부터 PM2.5 환경기준을 시행하고자 준비 중이다. 그러나 PM 관리는 비산먼지,장거리 이동, 2차 생성 등 까다롭고 복잡한 문제를 고려하여야 한다. 이번 논문에서는 서울을 비롯한 대도시에 대하여 BC 모니터링을 제안하였다. 경유차 배출과 생물성 연소 등 불완전 연소에 의한 유해물질을포괄적으로 대변할 수 있고, CO2 다음으로 중요한 지구 온난화 물질이며, 입자의 화학성분임에도 다른물질과 달리 비교적 저렴하게 농도를 감시할 수 있기 때문이다. 대도시는 인구 밀도가 높아 배출원에 인접한 고농도 지역에도 인구가 많으며 보호받아야 할 취약계층이 오히려 열악한 환경에 빈번하게 노출되는 문제를 안고 있다. 논문의 제안이 수용되어 BC 배출과 농도 분포를 파악하기 위한 조사가 실시되고값싸고 간편한 측정장비가 갖추어진다면 도시 곳곳에서 BC를 모니터링함으로써 유해물질을 감시할 수있다.
Abstract
Particulate matter(PM) is widely used as an indicator of the airborne particles. Korea introduced a PM10 air quality standard in 1995 and is preparing to introduce a PM2.5 air quality standard in 2015. However, PM management needs to consider difficult and complex issues such as fugitive dust, long-range transport, and secondary formation. In this paper, black carbon(BC)monitoring for metropolitan areas including Seoul is proposed. BC can broadly represent hazardous materials as a result of incomplete combustion such as diesel exhaust and biomass burning, is a significant contributor to global warming next to CO_2, and, albeit particles, can be monitored at low cost relative to other particle components which require detailed chemical analysis. In most metropolitan areas, high populations exist within and adjacent to emission sources around which low-income populations mainly live, and thus these populations are disproportionately affected by poor environmental conditions. If the studies investigating the spatial distribution of BC emissions and concentrations are performed, and inexpensive and simple devices for monitoring BC are available for the proposed work, hazardous materials can be monitored using BC as a surrogate as appropriate.
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