표제지
목차
Abstract 7
Ⅰ. 서론 9
Ⅱ. 연구방법 및 내용 10
1. 연구개요 10
가. 측정소 현황 10
나. 연구내용 11
다. 측정방법 11
(1) 먼지질량 측정 11
(2) 이온성분 측정 11
(3) 탄소성분 측정 11
(4) 중금속 성분, 가스상 물질 및 입경별 시료 측정 12
Ⅲ. 연구결과 및 고찰 13
1. 기상 현황 13
2. 입자상물질 분석 결과 14
가. PM2.5 및 PM10 결과 14
나. 이온성분 결과 16
(1) 이온성분 16
(2) NH₄+ 이온의 특성 17
(3) PM2.5 중 SO₄2-/ NO₃- 이온농도 비율 18
다. 탄소성분 결과 18
라. 입경별 성분분석 결과 20
마. 각 성분별 분석결과 26
(1) 항목 별 상관계수 26
(2) PM2.5 구성성분 비율 26
3. 가스상물질 분석 결과 28
4. 사례분석 결과 29
가. 황사 사례 29
나. 고농도 사례 31
다. 교통량과 BC 관계 34
5. PM2.5 고농도 발생 조건 35
가. 농도와 풍속과의 관계 35
나. 농도 상위 5 % 역궤적 분석 36
다. 고농도 발생조건 분석 37
Ⅳ. 결론 38
참고문헌 39
〈Table 1〉 Ambient air monitoring system 12
〈Table 2〉 Seasonal composition of PM2.5 in Dae-jeon 15
〈Table 3〉 Seasonal composition of PM2.5 in Gwang-ju 15
〈Table 4〉 Ratios of ion concentration in PM2.5 18
〈Table 5〉 Monthly concentrations of total and secondary carbons 20
〈Table 6〉 Concentrations of each particle size in Dae-jeon 21
〈Table 7〉 Concentrations of each particle size in Gwang-ju 21
〈Table 8〉 Metal concentrations of each particle size at Dae-jeon and Gwang-ju 24
〈Table 9〉 Correlation coefficients between PM2.5 and ion concentrations of PM2.5, OC, EC, weather 27
〈Table 10〉 Concentrations of ion, OC and EC of Asian dust in Dae-jeon 30
〈Table 11〉 Concentrations of PM, ion, OC and EC in Asian dust at Gwang-ju 31
〈Table 12〉 Concentrations of Heavy metal in Asian dust at Gwang-ju 31
〈Table 13〉 Concentrations of PM, ion, OC and EC during high concentration event at Dae-jeon 32
〈Table 14〉 Concentrations of heavy metal during high concentration event at Dae-jeon 33
〈Table 15〉 Concentrations of PM, ion, OC and EC during high concentration event at Gwang-ju 34
〈Table 16〉 API and PM10 concentration of China 36
〈Table 17〉 Condition of high concentration episode in Dae-jeon PM2.5 37
〈Table 18〉 Condition of high concentration episode in Gwang-ju PM2.5 37
〈Figure 1〉 Sampling location of Dae-jeon and Gwang-ju. 10
〈Figure 2〉 Windrose in Dae-jeon and Gwang-ju. 13
〈Figure 3〉 Monthly variation of weather in Dae-jeon and Gwang-ju. 13
〈Figure 4〉 Monthly variation of PM mass concentration in Dae-jeon. 15
〈Figure 5〉 Monthly variation of PM mass concentration in Gwang-ju. 15
〈Figure 6〉 Ion concentration and ratios of PM2.5. 16
〈Figure 7〉 Ammonium balance comparison between measured and calculated concentrations based on NH₄NO3-NH₄HSO₄ ① and NH₄NO3-(NH₄)₂SO₄ ②. 17
〈Figure 8〉 Average monthly concentrations of OC, EC in Dae-jeon. 19
〈Figure 9〉 Average monthly concentrations of OC, EC in Gwang-ju. 19
〈Figure 10〉 Portions of each size in PM. 21
〈Figure 11〉 Composition of ion in each particle size at Dae-jeon. 22
〈Figure 12〉 Composition of ion in each particle size at Gwang-ju. 23
〈Figure 13〉 Composition and concentration of metal in each particle size at Dae-jeon. 25
〈Figure 14〉 Composition and concentration of metal in each particle size at Gwang-ju. 25
〈Figure 15〉 Ratio of chemical compounds in PM2.5. 28
〈Figure 16〉 Monthly variations of gases compound concentration in Dae-jeon. 29
〈Figure 17〉 Monthly variations of gases compound concentration in Gwang-ju. 29
〈Figure 18〉 Concentration trands of PM, ion, OC, EC in asian dust at Dae-jeon. 29
〈Figure 19〉 Concentration trands of PM, ion, OC, EC and metal in Asian dust at Gwang-ju. 30
〈Figure 20〉 Concentration trends of PM, ion, OC, EC and heavy metal during high concentration event at Dae-jeon. 32
〈Figure 21〉 Concentration trends of PM, ion, OC, EC and heavy metal during high concentration event at Gwang-ju. 33
〈Figure 22〉 The diurnal variation of BC concentration and traffic volume. 34
〈Figure 23〉 Correlation between EC and BC. 34
〈Figure 24〉 PM2.5 concentrations by wind speed variations. 35
〈Figure 25〉 Analysis of the backward trajectory in Dae-jeon, Gwang-ju. 36