수원시 정자동 악취실태 조사

이태정,김동술,전준민 경희대학교 2006 環境硏究 論文集 Vol.15 No.-

The Jeongja housing development complex located in the northern Suwon city consists of around 30,000 households in a large scale apartment complex including 18,000 households near the Chitin Area. Since the apartment complex had been constructed near the existing chemistry and the medical and drug manufacturing factories, many public nuisances/grievances caused by malodorous smell were appealed by residents. For example, a total of 26 public nuisances against malodorous problems was recorded only in the year of 2005. Thus, the objective of the study is to intensively identify the odor causing chemical species and sources to deal with public nuisances, to prepare substantial management plans, and finally to attain pleasant air environment inside the study area. The odorous matters have been sampled 2 times at the following sites; near boundary areas between residential area and factory, public nuisance areas, and a background area. The highest dilution multiple factor was 17.5 on an average at the site, b2; however, it was below the emission standard of 20. The resulting factor at the site, al, was higher than the other sites, but the result did not exceed the emission standard The elevated ammonia concentration was observed at the sites near boundary areas of the Sinmyoung apartment, where located on the downward direction from the factory. The levels (112.7 pp. during the 1st survey and 81.9 pp. during the 2nd survey) were 2 to 3 times higher than the other sites.

입자상 오염물질의 대기환경기준에 관한 연구

허정숙,남보현,황인조,김동술 경희대학교 환경연구소 1999 環境硏究 論文集 Vol.9 No.-

We provide various fundamental statistics for PM-10 based on air quality monitoring data('96-'98) operated by the Ministry of Environment. The purposes of this paper are to examine the distribution of PM-10 level computed on the basis of a reference method adapted by USEPA and to review national ambient air quality standards for particulate matter in Korea. When we calcualted the 3-year('96-'98) average of the annual mean PM-10 concentrations at 24 monitoring sites. 21 sites were not met 50㎍/m(annual PM-10 standard in USA). Especially. Duckchon-dong and Shinpyung-dong sites at Pusan were recorded the highest concentration. Also, when we considered the 3-year average of the 99^(th) percentile values, 14 sites including Ssangmun-dong at Seoul and Duckchon-dong at Pusan among 23 were classified non-attainment area exceeding 150㎍/m(24-hour PM-10 standard in USA). We suggest that the air quality standards for PM-10 and PM2.5 in Korea must be actually regulated based on scientific review and the public health.

우리나라의 철강산업에서 대기오염의 관리 및 방지현황에 관한 연구

김동술,김신도,유정석 경희대학교 환경연구소 1994 環境硏究 論文集 Vol.5 No.-

국가 경제발전에 크게 기여하고 있는 철강산업은 에너지를 과소비하며, 폐기물을 대량 발생하는 공해 유발업종이기도 하다. 1970년 이후 철강산업은 지속적인 산업발전을 위하여, 생산설비의 확장과 함께, 대기의 질을 개선시키기 위하여 방지설비에도 많은 비용을 투자하였다. 대부분 산업체의 경우처럼, 국내 철강산업 역시 개발과 환경보존과의 조화라는 어려움을 가지고 있었으며, 각종 대기환경정책의 변화에도 적극적으로 대처하고 있다. 본 연구는 철강산업의 국가 경제발전에 주요 공헌산업으로서의 역할을 계속 유지하며, 철강산업이 국내 환경개선에도 선도적인 역할을 수행할 수 있도록, 우리실정에 적합한 대기오염 배출규제의 방향을 제시하고자 하였다. 이를 위해, 본 연구는 철강산업의 환경현황과 문제점, 대기오염 방지시설의 현황과 처리에 대한 경제성 등을 연구조사하였으며, 우리나라 대기환경규제의 비합리성을 지적하였다.

商法草案에 나타난 商行爲에서 본 商法의 性格

李東述 全北大學校 1957 論文集 Vol.1 No.-

韓國語의 形態素分析을 위한 辭典情報의 擴張

康東振,朴永述 경북대학교 사회과학연구소 1989 社會科學硏究 Vol.5 No.-

In this paper, to provide the maximum information concerning Korean morphology, the managing method of making code of combination information and regulation was used and especially the total character and meaningful information focusing on the "Che-on", "Yong-on" was extended and provided with dictionary information. This does not depend on the certain linguistic grammar or handling algorism, but is considered to provide for the important data in translation multilanguage as the usable extended dictionary information.

강설 중 분진 및 금속원소의 침착

김성천,김동술 경희대학교 자연과학종합연구원 1995 자연과학논문집 Vol.1 No.-

The 21 snow samples were collected from 9 different sites in Korea. Then we analysed chemical compositions, deposition fluxes and velocities of dustfall, and metallic elements in snow in Korea. The results were as follows; The concentration difference of upper and lower layer of snow showed wide range. As for dry deposition, K was highest in Suwon, Ca and Zn were highest in Kwangju. As for wet deposition, Zn, and Ca were highest in Sunchang and Namwon. The range of pH in snow was 4.95-5.85 in the upper layer and 5.00-5.58 in the lower layer. The correlation coefficient of pH and conductivity was r^(2)=0.55 in the upper layer and r^(2)=0.86 in the lower layer. The correlation coefficient of total dissolved solid and conductivity was r^(2)=0.85 in the upper layer and r^(2)=0.86 in the lower layer. Deposited dustfall in snow was 470.0 ton/km^(2)/yr in Seoul, 387.7 ton/km^(2)/yr in Suwon, and 115.4 ton/km^(2)/yr in Kwangju. Zn flux was highest in Ansung; on the other hand, Cd and Cr fluxes were highest in Seoul. Dry deposition velocity of upper layer in January were Zn 0.13 ㎝/s, Pb 0.01 ㎝/s, Ca 0.21 ㎝/s, Fe 0. 02 ㎝/s, Mn 2.13 ㎝/s, Cu 0.19 ㎝/s, and in Feburary Ca was 0.055 ㎝/s.

PMF 모델을 이용한 대기 중 PM-10 오염원의 확인

황인조,김동술 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.6

The objective of this study was to extensively estimate the air quality trends of the study area by surveying concentration trends in months or seasons, after analyzing the mass concentration of PM-10 samples and the inorganic elements, ion, and total carbon in PM-10. Also, the study introduced to apply the PMF (Positive Matrix Factorization model that is useful when absence of the source profile. Thus the model was thought to be suitable in Korea that often has few information about pollution sources. After obtaining results from the PMF modeling, the existing sources at the study area were qualitatively identified. The PM-10 particles collected on quartz fiber filters by a PM-IO high-vol air sampler for 3 years (Mar. 1999~Dec. 2001) in Kyung Hee University. The 25 chemical species (AI, Mn, Ti, V, Cr, Fe, Ni, Cu, Zn, As, Se, Cd, Ba, Ce, Pb, Si, Na^(+), NH₄^(+), K^(+), Mg²^(+), Ca²^(+), CI^(-), N0₃^(-), SO₄^(2-), TC) were analyzed by ICP-AES, IC, and EA after executing proper pre-treatments of each sample filter. The PMF model was intensively applied to estimate the quantitative contribution of air pollution sources based on the chemical information (128 samples and 25 chemical species). Through a case study of the PMF modeling for the PM -10 aerosols, the total of 11 factors were determined. The multiple linear regression analysis between the observed PM-10 mass concentration and the estimated G matrix had been performed following the FPEAK test. Finally the regression analysis provided source profiles (scaled F matrix). So, 11 sources were qualitatively identified, such as secondary aerosol related source, soil related source, waste incineration source, field burning source, fossil fuel combustion source, industry related source, motor vehicle source, oil/coal combustion source, non-ferrous metal source, and aged sea-salt source, respectively.

충청권 화력발전소에 의한 수도권지역 오염 부하량 증가

이태정,김동술 경희대학교 2005 環境硏究 論文集 Vol.14 No.-

For the efficient control of atmospheric quality, it is important to predict the influence accurately of which the air pollution emitted into the atmosphere. Consequently, various methodologies have been developed for its assessment. Atmospheric dispersion model enable to simulate the atmospheric condition occurred due to the emission of pollutants. Traditionally, simple approaches such as the box model or the Gaussian plume model have been used to assess urban air quality. The use of Eulerian grid models, which provide a more realistic and comprehensive description of the urban atmosphere, has been increasing over the past few years. The result of model is largely affected by the amount of emission, the characteristics of physical and chemical process, meteorology input data, and the receptor which the concentration is calculated. The aim of this study is to assess pollutants mass loading contribution at the metropolitan area by firepower plants of Chungcheong area using the Models-3 Community Multi-scale Air Quality (CMAQ) modeling system coupled with the MM5. As the basic work for executing the model, the amount of emission of air pollutants in Korea at 2001 was computed and the meteorology condition was analyzed as well. CMAQ showed the similar result relatively with observed values in the case of study period. As the result of this study, firepower plants in Chungcheong area contribute the maximum SO₂ 31.1%, NO₂ 21.8%, and PM1O 7.4% at the metropolitan area. For the efficient control of atmospheric quality and define of attainment object, it is necessary to assess and control other area sources.

VOCs의 시료채취 및 보관에 따른 안정성 검토

봉춘근,김동술,김영두,김광래 경희대학교 환경연구소 2002 環境硏究 論文集 Vol.11 No.-

This study was fulfilled to evaluate the durability of VOCs for different sampling methods. The sampling methods widely used to collect atmospheric VOCs are Canister method (EPA method TO-141, Absorbtion tube method (EPA method TO-17), and Tedlar-bag method, and those methods are used in this study. The samples were analyzed after 0, 1, 3, 7, 15, 30 days to figure out the durability of components while keeping under low temperature (4℃) and room temperature (about 20 ℃). Each sample collected by above sampling method was analyzed by high resolution gas chromatography (GC) with flame ionization detector (FID). The test results were shown that the compounds in canisters and absorbtion tubs were stable, but the ones in tedlar-bags were not stable. Heavy components such as Toluene, m/p-Xylene in absorbtion tubes were kept their stability for a long time longer than the ones in canisters. However, the reducing rates of heavy components in canisters were not bigger than those of Tedlar-bags. The VOCs sample collected and stored in tedlar-bag are unstable for analysis, even after a days. As a result of this study, it is found that Canister method and Absorbtion tube method are reliable for collection and storage for a variety of ozone precursors compared to Tedlar-bag method. It is strongly recommended that the samples collected using Tedlar-bag need to be analysed shortly after sampling.

철도디젤차량에서 배출되는 오염물질의 배출량 산정방법 개발

박덕신,김동술 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.4

Up to the present time, many methods to estimate emissions from a particular diesel engines have wholly depended on the quantity of diesel fuel consumed. Then, the recommended emission factors were normalized by fuel consumption, and further total activity was estimated by the total fuel consumed. One of main purposes in the study is newly to develop emission factors for the railroad diesel rolling stock (RDRS) and to estimate a total amount of major gaseous pollutants from the RDRS in Korea. Prior to develop a Korean mode emission factor, the emission factor from the USEPA was simply applied for comparative studies. When applying the USEPA emission factors, total exhaust emissions from the RDRS in Korea were estimated by 28,117tons of NOx. 2,832.3tons of CO, and 1,237.5tons of HC, etc in 2001. In this study. a emission factor for the RDRS. so called the KoRail mode (the Korean Railroad mode) has been developed on the basis of analyzing the driving pattern of the Gyeongbu-Line especially for the line-haul mode. Explicitly to make the site specific emission factors, many uncertainty problems concerning weighting factors for each power mode, limited emission test, incomplete data for RDRS, and other important input parameters were extensively examined. Total exhaust emissions by KoRail mode in Korea were estimated by 10,960tons of NOx, and 4,622tons of CO, and so on in the year of 2001. The emissions estimated by the USEPA mode were 2.6 times higher for NOx. and 1.6 times lower for CO than those by the KoRail mode. As a conclusion, based on the emission calculated from both the USEPA mode and the KoRail mode, the RDRS is considered as one of the significant mobile sources for major gaseous pollutants and thus management plans and control strategies for the RDRS must be established to improve air quality near future in Korea.