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자료유형
학술저널
저자정보
저널정보
한국환경분석학회 환경분석과 독성보건 한국환경분석학회지 제14권 제4호
발행연도
2011.1
수록면
249 - 256 (8page)

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We investigated the temporal and spatial distribution of SO₂measured at 14 air pollution monitoring sites in Ulsan, Korea. The levels of SO₂in Ulsan have continuously decreased since the 1990s, and a recent (2005-2009) annual average concentration of 8 ppb is lower than the national guideline of 20 ppb. However, Ulsan has higher levels of SO₂than any other mega-city in Korea. The average level of SO₂at industrial sites (13.7ppb) is 2.4 times higher than those at residential and commercial sites. According to the measurement data,meteorological condition, and former air dispersion modeling results, it was confirmed that SO₂emitted from the industrial complex was transported to the residential area by sea-land breeze and southeastern seasonal winds. For the improved air quality in Ulsan, the current environmental policy permitting the use of high-sulfur oil (<4%) should be carefully evaluated. The emission of greenhouse gases and hazardous air pollutants (HAPs) as well as SO₂from plants using the high-sulfur oil should be monitored. Furthermore, separated environmental policies for the industrial and residential areas are required for more effective pollution management.

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