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한라산 1100고지 대기 미세먼지의 화학조성 및 배출특성

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Alternative Title
Chemical Compositions and Emission Characteristics of Atomospheric Fine Particulate Matters at the 1100 Site of Mt. Halla, Jeju : during 2012~2013
Abstract
The PM_10 and PM_2.5 samples were collected at the 1100 m site of Mt. Halla in Jeju Island, which is a background site located at the atmospheric boundary layer (ABL), during the period of 2012-2013. Their ionic and elemental species were analyzed, in order to examine the chemical compositions and emission characteristics of fine particulate matters in accordance with the different meteorological phenomena. Mass concentrations of the PM_10 and PM_2.5 were 21.1±11.7 and 12.4±6.9 μg/m^3, respectively, during the non-event days. From the comparison of ion balance, the correlation coefficients (r) between the sums of cationic and anionic equivalent concentrations were 0.986 and 0.984, respectively, for PM_10 and PM_2.5 fine particulate matters, indicating the good correlations.
In PM_10 fine particulate matters, the concentrations of secondary pollutants such as nss-SO_4^2^-, NH_4^+, and NO_3^- were 5.51, 1.94 and 1.35 μg/m^3, respectively. In PM_2.5 fine particulate matters, their concentrations were 4.41, 1.65, and 0.53 μg/m^3, respectively. Meanwhile, the elemental compositions of PM_10 showed 46.6% for anthropogenic (Zn, Pb, Ni), 31.4% for soil (Al, Fe, Ca) sources.
Based on the study of size-fractionated particle compositions, the PM_2.5/PM_10 concentration ratios of nss-SO_4^2 and NH_4^+ were 0.8, 0.9, respectively, indicating that those species were mostly existed in PM_2.5 particles. On the other hand, marine and soil species such as Na^+, Cl^-, Mg^2^+, and nss-Ca^2^+ were rich in PM_10 particles.
From the study of source origins by the principal component analysis, the ionic species of PM_10 fine particulate matters were mostly originated from anthropogenic sources, followed next by marine, plant, and mixed soil-anthropogenic sources. While the compositions of PM_2.5 fine particulate matters were influenced mainly by anthropogenic sources, followed next by plant, marine, and mixed soil-anthropogenic sources.
During the Asian dust periods, the concentrations of nss-Ca^2^+ and NO_3^- were increased highly as 12.3 and 3.8 times in PM_10, and 3.4 and 5.3 times in PM_2.5, respectively, compared to non-event days. Especially, the concentrations of the crustal species such as Al, Fe, Ca, Mn, Ba, and Sr showed a noticeable increase during the Asian dust periods. For the haze events days, the concentrations of secondary pollutants increased 1.9~5.2 and 1.9~7.6 times in PM_10 and PM_2.5, respectively. Meanwhile, those for the mist event days were 1.6~2.1 and 1.2~2.1 times higher, respectively, in PM_10 and PM_2.5, compared to non-event days.
Author(s)
박성현
Issued Date
2018
Awarded Date
2018. 2
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000008455
Alternative Author(s)
Sung-Hyun Park
Affiliation
제주대학교 일반대학원
Department
대학원 화학과
Advisor
강창희
Table Of Contents
List of Tables ⅲ
List of Figures ⅴ
ABSTRACT ⅷ
I. 서 론 1
II.연구 방법 5
1. 미세먼지 시료 채취 5
1.1 시료 채취 지점 5
1.2 측정기기 5
2. 미세먼지의 시료 채취 및 분석 7
2.1 PM_10 미세먼지 시료 채취 7
2.2 PM_2.5 미세먼지 시료 채취 7
2.3 미세먼지 질량농도 측정 7
2.4 수용성 이온성분 분석 8
2.5 원소 성분 분석 10
III. 결과 및 고찰 13
1. 미세먼지 질량농도 13
2. 이온 수지 비교 16
3. 미세먼지 조성 18
3.1 PM_10 조성 18
3.2 PM_2.5 조성 26
3.3 PM_10 입자와 PM_2.5 입자 조성 비교 30
3.4 성분들 간 상관성 34
3.5 미세먼지 성분의 배출원 특성 39
3.6 기류 이동 경로별 조성비교 44
4. 기상현상별 화학조성 특성 47
4.1 황사 미세먼지의 화학조성 47
4.2 연무 미세먼지의 화학조성 59
4.3 박무 미세먼지의 화학조성 68
5. 해양 및 토양의 영향 76
5.1 해양 농축 인자 76
5.2 토양 농축 인자 79
6. 산성화 및 중화 특성 81
6.1 기상현상별 산성화 특성 81
5.1 기상현상별 중화 특성 85
Ⅳ. 결 론 87
Ⅴ. 참 고 문 헌 89
Degree
Master
Publisher
제주대학교 일반대학원
Citation
박성현. (2018). 한라산 1100고지 대기 미세먼지의 화학조성 및 배출특성
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General Graduate School > Chemistry
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