표제지
목차
논문개요 10
I. 서론 12
1. 연구 배경 12
2. 연구 목적 15
3. 연구 대상 지역 16
3.1. 서울 16
3.2. 고산, 제주도 16
II. 연구 자료 18
III. 모델 22
1. 기체-입자 열역학 평형 모델 (SCAPE2) 22
2. 기체-입자 평형 모델을 이용한 수분함량 예측 24
2.1. NH₄+-SO₄²--NO₃--Water 시스템(이미지참조) 24
2.2. Na+-NH₄+-SO₄²--NO₃--Cl--Water 시스템(이미지참조) 27
2.3. Na+-NH₄+-SO₄²--NO₃--Cl--Ca²+-K+-Mg²+-CO₃²--Water 시스템(이미지참조) 29
3. 빛 산란 계수 모델 (ELSIE) 33
IV. 결과 35
1. 서울 대기 입자 35
1.1. 상대습도에 따른 입자의 흡습성 36
1.2. 대기 이온 농도 변화에 따른 입자 질량 농도와 광학 특성 변화 39
1.2.1. 입자 질량 농도 변화 39
1.2.2. 입자의 광학 특성 변화 44
2. 고산 대기 입자 50
2.1. 상대습도에 따른 입자의 흡습성 51
2.2. 대기 이온 농도 변화에 따른 입자 질량 농도와 광학 특성 변화 53
2.2.1. 입자 질량 농도 변화 53
2.2.2. 입자 광학 특성 변화 57
V. 요약 및 결론 59
VI. 참고 문헌 63
ABSTRACT 67
감사의 글 69
Table 2-1. Ambient relative humidity (RH), temperature (Temp.) and species concentration (㎍ m-3) at Seoul and Gosan(이미지참조) 20
Table 4-1. Seasonal characteristics of particle at Seoul 35
Table 4-2. The ammonium richness of calculated particle with ambient species concentration at each season at Seoul 43
Table 4-3. Seasonal characteristics of particle at Gosan 50
Table 4-4. Sensitivity of seasonal ammonium richness with changing ionic concentration at Gosan 56
Figure 1-1. Map of the measurement sites, Seoul and Gosan, Jeju Island 17
Figure 2-1. The average inorganic ion equivalent fractions of PM2.5 at (a) Seoul and (b) Gosan(이미지참조) 21
Figure 3-1. Variation of particle water content and solid salts' concentrations with relative humidity in a… 26
Figure 3-2. Variation of particle water content and solid salts' concentration with relative humidity in a… 28
Figure 3-3. Variation of particle water content and solid salts' concentration with relative humidity in a… 31
Figure 3-4. Comparison of the variations of particle water content with relative humidity for… 32
Figure 4-1. Variation of particle water content and solid salts' concentrations with relative humidity in (a) spring, (b) summer, (c) fall and (d) winter 37
Figure 4-2. Sensitivity of particle dry mass concentration and total mass concentration with ambient… 40
Figure 4-3. Change of particle size distribution with relative humidity (RH)… 45
Figure 4-4. Sensitivity of dry particle light scattering coefficient and total particle light scattering coefficient… 46
Figure 4-5. Sensitivity of total particle light scattering coefficient with ionic concentration changes… 49
Figure 4-6. Variation of particle water content and solid salts' concentrations with relative humidity in (a) spring, (b) summer, (c) fall and (d) winter 52
Figure 4-7. Sensitivity of particle dry mass concentration and total mass concentration with ambient… 54
Figure 4-8. Sensitivity of total particle light scattering coefficient with ionic species concentration… 58
Figure 5-1. Sensitivity of total particle light scattering coefficient with ambient total… 61