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논문 기본 정보

자료유형
학술저널
저자정보
이영재 (국립환경과학원) 정선아 (국립환경과학원) 조미라 (국립환경과학원) 김선정 (국립환경과학원) 박미경 (국립환경과학원) 안준영 (국립환경과학원) 유영숙 (국립환경과학원) 최원준 (국립환경과학원) 홍유덕 (국립환경과학원) 한진석 (국립환경과학원) 임재현 (국립환경과학원)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제30권 제5호
발행연도
2014.10
수록면
434 - 448 (15page)

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초록· 키워드

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The aerosol characteristics between haze episode and Asian dust event were identified in January and March, 2013 in Gwang-ju of Korea to investigate the metal elements, ionic concentrations and carbonaceous particles of PM<SUB>2.5</SUB> and PM<SUB>10</SUB>. In the haze episode, the concentrations were increased 1~3.2 times of ionic species and 1.6~2.7 of metal elements. Especially, the concentration of NO₃<SUP>-</SUP>, SO₄<SUP>2-</SUP>and NH₄<SUP>+</SUP> consists of 50 percent in ionic species during haze episode that was higher than Asian dust event. This suggests that secondary aerosols from anthropogenic air pollution were mainly contributed by haze episode. During the Asian dust event, increase of metal concentrations was higher than haze episode because of remarkable increase of Ti, K and Fe originated from soil. The concentrations of carbonaceous particles were increased 2.5 times during haze episode, and 2.4 times of OC and 2.1 times of EC during Asian dust event in PM<SUB>2.5</SUB>. However, these aerosol mass concentration does not affect the OC/EC ratio. The average equivalence ratios of cations/anions in PM<SUB>2.5</SUB> were 0.99 in haze episodes and 0.94 during non-event day. The neutralization factor of NH₃ was higher than that of CaCO₃. Futhermore, NH₄<SUP>+</SUP> aerosol was aged due to atmospheric stagnation that might be affected by the haze episode.

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Abstract
1. 서론
2. 연구 방법
3. 결과 및 고찰
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2015-530-002671007