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국내 일반공항에서 항공기에 의한 대기오염물질과 온실가스의 배출량 산정 및 특성 분석
손장호 ( Zang Ho Shon ),손상근 ( Sang Keun Song ),윤태경 ( Tae Kyung Yoon ),이강춘 ( Gang Choon Lee ) 한국환경과학회 2013 한국환경과학회지 Vol.22 No.7
Emissions of air pollutants and greenhouse gases (GHGs) from aircraft activities at 11 small-scale airports were investigated using the emissions and dispersion modeling system (EDMS) version 5.1.3 during the two year period of 2009~2010. The number of landing and take-off (LTO) at these airports was dominant for the aircraft type B737, accounting for more than 60% of the total LTOs. Out of the 11 small-scale airports, Gwangju (GJ. RKJJ) airport was the larest emitter of air pollutants and GHGs, whereas Yangyang (YY.RKNY) airport was the smallest emitter. The emissions of Nox and VOCs in 2010 at the 11 airports ranged from 1.9 to 83 ton/y and 0.1 to 17 ton/y, respectively. In 2010, the emissions of CO2 ranged from 394 to 21,217 ton/y. The emissions of most air pollutants (except for NOx and PM10) and GHGs were estimated to be the highest in taxi-out mode. The highest emissions of NOx and PM10 were emitted from climb-out and approach modes, respectively. In addition, the total LTOs at the 11 small-scale airports accounted for the range of 9.3~9.9% of those at four major international airports in Korea. The total emissions of air pollutants and GHGs at the 11 airports ranged from 4.8 to 12% of those at the four major airports.
2015~2016년 경남지역의 PM<sub>2.5</sub>의 시·공간적 특성
손장호 ( Zang-ho Shon ) 한국환경과학회 2017 한국환경과학회지 Vol.26 No.9
Characterization of spatio-temporal variations in PM<sub>2.5</sub> in Gyeongnam (GN) province during 2015-2016 was investigated to assess the air quality in this area in terms of fine particles. Yearly mean concentrations of PM<sub>2.5</sub> ranged from 19.1 to 29.5 μgm<sup>-3</sup>. High concentrations of PM<sub>2.5</sub> were observed in spring (21.2-30.3 μgm<sup>-3</sup>) and winter (20.2-30.3 μgm<sup>-3</sup>). Low concentrations of PM<sub>2.5</sub> were generally observed in fall (16.2-23.2 μgm<sup>-3</sup>). PM<sub>2.5</sub> concentration was highest in the morning (10 AM). The fractions of PM<sub>2.5</sub> in PM<sub>10</sub> were 0.51-0.62 and two were significantly correlated (r=0.779-0.830), suggesting common sources (fossil fuel combustion, mobile sources, etc). CO was significantly correlated with PM<sub>2.5</sub> in highly urbanized areas such as the city of Changwon (CW, r=0.711), compared to other air pollutants (SO<sub>2</sub>, NO<sub>2</sub>, and O<sub>3</sub>), suggesting dominance of industrial combustion sources.
양산시 산업단지에서 측정한 악취물질의 농도 분포 특성 및 대기확산 모델링
송상근 ( Sang Keun Song ),손장호 ( Zang Ho Shon ),김유근 ( Yoo Keun Kim ),박흥재 ( Heung Jai Park ) 한국환경과학회 2009 한국환경과학회지 Vol.18 No.10
In this study, the environmental behavior of malodor pollutants (MPs: H2S, CH3SH, DMS, and DMDS) was investigated around areas influenced by strong anthropogenic processes based on observations and modeling study (a CALPUFF dispersion model). The MP emission concentrations were measured from 8 industrial source regions (tire plants (S1-S3), waste water disposal plant (S4), and oil refinery (S5) in an urban center area and paper mill/incineration plant (S6) and livestock feedlots (S7-S8) in Ungsang area) in Yangsan city during a fall period in 2008 (21 October 2008). Overall, the most MPs emitted from the urban center area were found to affect the malodor pollution in their downwind areas during early morning (06:00 LST) and nighttime (18:00 and 21:00 LST), compared with those in the Ungsang area. For malodor intensity, the most MPs in the urban center area (especially S1 and S2) were found to be a significant contributor, whereas CH3SH and H2S in the Ungsnag area (especially S6) were the dominant contributor. The model study showed agreement in the spatial distributions of simulated MPs with those of the observations. The largest impact of MPs in the urban center area on the malodor pollution in its residential areas occurred at S1, S2, and S3 sites during nighttime, while that of MPs in the Ungsang area occurred at S6 and S8 sites. This may be caused mainly by the high MP emissions and in part by wind conditions (prevailing northeasterly winds with low wind speeds of 2-3 m/s).
부산지역 해수욕장 개장시 교통량 변화에 따른 대기오염물질 배출량 및 농도 특성 분석
서우미 ( Woo Mi Seo ),손장호 ( Zang Ho Shon ),송상근 ( Sang Keun Song ) 한국환경과학회 2012 한국환경과학회지 Vol.21 No.9
The impact of a considerable increase in traffic volume on the emission and concentrations of air pollutants was investigated at three beaches (Haeundae (HB), Gwanganri (GB), and Songjeong (SB)) in Busan during beach opening period (BOP) in 2011. During the BOP, passenger car was the major vehicle type, followed by taxi, and van. CO was the major contributor of total air pollutant emissions followed by NOx, VOC, and PM10. For the temporal variation of the emission of air pollutants during the BOP, it was generally the highest in the afternoon followed by the evening and morning, except for SB. For the spatial variation of their emission, it was the highest at GB followed by SB and HB. The emissions of air pollutants during the BOP were generally higher than those during the Non-BOP, except for HB. In contrast, the significant impact of the traffic volume increase on the concentrations of air pollutants at monitoring sites near the three beaches during the BOP were not found compared to the Non-BOP due to the significant distances between monitoring sites of air pollutants and monitoring sites of traffic volume at the beaches.