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수도권(SMA) 지역의 PM-10 농도 저감 원인 분석
손정석(Jung-Suk Son),박지훈(Ji-Hoon Park),노순아(Soon-A Roh),신혜정(Hye-Jung Shin),김소영(So-Young Kim),김수연(Soo-Yeun Kim),이민도(Min-Do Lee),김종춘(Jong-Chun Kim) 한국환경관리학회 2011 環境管理學會誌 Vol.17 No.3
Air pollution has been raised as a serious problem in the Seoul Metropolitan Area(SMA) as it is overcrowded and many pollution sources are widely scattered in and around the area. More importantly, much attention has been paid to PM-10, one of the fine particles regulated by national standards, because it has significant influence on human health, directly or indirectly, and causes inconveniences in our daily life. This study used mass concentration data of PM-10 in the SMA for the last decade (2000~ 2010) to find out the concentration trend. The study also qualified and quantified changes in mass concentration of PM10 based-on factors which affect mass concentrations such as meteorological factors, long-ranged air pollutants like yellow dust, existing air quality polities and the impact of changing mass concentrations of PM-10 by emissions.
노순아(Soon-A Roh),신혜정(Hye-Jung Shin),박지훈(Ji-Hoon Park),손정석(Jung-Sok Son),김소영(So-Young Kim),이민도(Min-Do Lee),장성기(Seong-Ki Jang),김종춘(Jong-Chun Kim),이석조(Suk-Jo Lee) 한국환경관리학회 2011 環境管理學會誌 Vol.17 No.3
This study examined the characteristics of PM concentration distribution monitored by its size at seven National Atmospheric Monitoring Stations from the March 2008 to May 2009. And it found that PM concentration showed a bimodal shape with two peaks : one between 0.32 and 0.56 ㎛ and the other between 3.2 and 5.6 ㎛. The study reckons that the concentration of PM-2.5 accounted for larger share than the rest of the particles since the highest concentration appeared in the range of 0.32∼0.56 ㎛, and the second highest on was between 1.8∼3.2 ㎛. The size of particles differed by station, particularly between 0.32 and 0.56 ㎛, and 0.56 and 1.0 ㎛. Other size ranges showed similar concentration ratios. Diameter interval appears relatively large difference by station in section 0.32∼0.56 ㎛ and 0.56∼1.0 ㎛, concentration ratios similar to other section. Though the size distribution of particle concentration is similar in seven stations, it is appeared that relatively large difference is observed in section 0.32∼0.56 ㎛ and 0.56∼1.0 ㎛. Considering the fact that emission sources emit different size of particles according to their chemical and physical formation process, this study assumes that there are differences in the size-segregated particle concentration as the size distribution of each station reflects the characteristics of emission in a region. The particle concentration of Seoul Metropolitan Area (SMA) was high in October 2008 and April 2009, in particular during Asian dust events.
항공관측 및 대기질 모델링을 활용한 장거리 이동물질 영향 연구
이성우(Sung-Woo Lee),최민혁(Min-Hyeok Choi),최진수(Jin-Su Choi),손정석(Jung-Suk Son),김성용(Sung-Yong Kim),장임석(Lim-Seok Chang),이성우(Sung-Woo Lee),김종춘(Jong-Chun Kim),반수진(Soo-Jin Ban),장성기(Seong-Ki Jang),황경철(Kyung-Chul 한국환경관리학회 2011 環境管理學會誌 Vol.17 No.3
This study was conducted as the Long-range Transboundary Air Pollutants (LTP) Project among Korea, Japan and China. The research aims to understand atmospheric environment in Northeast Asia as well as determine causes of air pollution in the region. It ultimately wants to provide scientific data for establishing air pollution reduction measures. To this end, several activities were performed including aircraft measurement, upper and synoptic atmosphere analysis, and modeling analysis. Aircraft measurement was carried out in 2010 during two intensive measurement periods in vertical and zonal paths. The first measurement period was between May 15~25 for 7 times, and the second one was November 15~22 for 8 times. The highest pollutants concentration was observed in 20 May 2010. On this day, the mean concentration of SO₂ was 5.56 ppb, CO was 0.23 ppm, O3 was 9.47ppb, NOx was 4.01 ppb, PAN was 1.37 ppb, and particle number was 194.968 N/㎤, higher than the other measurement days. The modeling result during the aircraft measurement was quite reliable as it was performed based on the 2006 INTEX-B emission data. In addition, high concentration events and tracts of air pollutant movement were well simulated in the model. But the modeling result also requires some further improvement as it tends to underestimate their absolute values.
장성기(Seong-Ki Jang),성민영(Min-Young Sung),신아윤(A-Youn Shin),최진수(Jin-Su Choi),손정석(Jung-Suk Son),안준영(Joon-Young Ahn),김종춘(Jong-Chun Kim),신은상(Eun-Sang Shin) 한국환경관리학회 2011 環境管理學會誌 Vol.17 No.3
This study is aimed at finding the characteristics of long-term trends in wet and dry deposition in Korea. NIER(National Institute of Environmental Research) has monitored major ion components of wet and dry deposition since 1999. The institute also has carried out researches in order to estimate the critical loads for ecosystem based on the collected data from 1999 to 2009. Sampling was conducted at 38 acid deposition monitoring sites and major ion components such as SO₄²?, Cl?, NO₃?, NH₄?, Na?, K?, Ca²? and Mg²? were analyzed by using ion chromatograph. The results helped find out changes in acid deposition for ten years(1999∼2009) in Korea. The data from 10 monitoring sites showed that average annual pH for the monitoring period was 5.1 with the maximum pH level of 6.2 in Imsil(2007) and its minimum level of 4.2 in Deajeon(2008). Of 10 monitoring sites, pH levels of Gwangju, Daejeon, Seoul, Taean and Gangwha have decreased and there was not much change of pH in rural areas. The total deposition of sulfur showed a decreasing trend of 1.44, 1.89, 2.02, 1.26, 1.33, 1.28 g/㎡ㆍyear from 2005 to 2010 while the total deposition of nitrogen was 1.29, 1.72, 2.58, 2.14, 2.49, 2.31 g/㎡ㆍyear during the same period showing an increasing trend. Sulfur concentration was lower in 2008 and 2009 compared to that of 2006 and 2007 and, in particular, the concentration monitored at Seoul was slightly higher than others. As for nitrogen, its concentration was observed to be high in some part of the Seoul Metropolitan Area(SMA) and low in 2009.
이민도(Min-Do Lee),김소영(So-Young Kim),김종춘(Jong-Chun Kim),김영환(Young-Hwan Kim),서석준(Suk-Joon Seo),김수연(Soo-Yeun Ki),손정석(Jung-Suk Son),박지훈(Ji-Hoon Park),임용재(Yong-Jae Lim) 한국환경관리학회 2011 環境管理學會誌 Vol.17 No.3
In this study, various techniques for measurement and analysis of PAHs in the ambient air were verified in order to select a more reliable method. Sampling and analysis of PAHs were done by the EPA TO-13a method. QA/QC of the measurement was conducted to minimize errors in sampling and analyzing processes. The linearity of calibration curve of the PAH standards was good (R²=0.99). Audit accuracy was evaluated using 5 internal standards of PAHs (Naphthalene-d8, Acenaphthene-d₁?, Phenanthrene-d₁?, Chrysene-d₁₂, Perylene-d₁₂). Relative standard deviations of the internal standard of the PAHs were ranged from 1.48% for D8-naphthalene to 7.46% for D10-Phenanthrene. The detection limit of benzo(a)pyrene among 16 PAHs standards for quantitation was 15.11 pg.
최진수 ( Jin Soo Choi ),박진수 ( Jin Soo Park ),안준영 ( Joon Young Ahn ),오준 ( Jun Oh ),손정석 ( Jung Suk Son ),김현재 ( Hyun Jae Kim ),성민영 ( Min Young Sung ),이용환 ( Yong Hwan Lee ),이상덕 ( Sang Deok Lee ),홍유덕 ( You De 한국환경분석학회 2015 환경분석과 독성보건 Vol.18 No.1
We looked into the characteristics and long term variations of chemicals affecting the acidity of precipitation. To this end, we analyzed the data collected at three acid deposition monitoring sites for the period from 1999 to 2013. Three monitoring sites include Seoul, Taean, and Jeju island. Required parameters such as pH, electric conductivity(EC), and concentrations of eight major ionic species were measured. In order to assure accuracy and precision of the data, values of measured electric conductivity were compared against values of calculated electric conductivity. Moreover, comparison between and was made in accordance with EANET°Øs QA/QC method to assure data reliability. During the monitoring period, the deposition was slightly acidic with pH value ranging between 4.6 and 4.9. Precipitation with pH 4.1 to 4.5 was most frequently observed with occurrence frequency of 27%. The analysis of seasonal variations of atmospheric concentration of pH showed that pH level was highest in spring season due to the influx of yellow sand and high pH levels in soils. The study also found that pH levels of samples collected at Seoul and Taean monitoring sites were lowest in autumn. On the other hand, pH level in Jeju was lowest in winter season. Increase in concentrations of NO3 - in precipitation was commonly observed at three monitoring sites. The concentrations of NO3- and NH4 + which affect the acidity of precipitation at Seoul and Taean monitoring sites showed increasing trend.