• Title/Summary/Keyword: 중공업 오염

Search Result 9, Processing Time 0.036 seconds

Measure of Environmental Performance through Integrated Pollution Intensities (통합오염원단위 지수를 이용한 환경성과 측정)

  • Kang, Sang-Mok;Chung, Young-Keun;Cho, Joo-Hyun
    • Environmental and Resource Economics Review
    • /
    • v.14 no.1
    • /
    • pp.135-166
    • /
    • 2005
  • This paper measures integrated pollution intensities and changes in pollution intensity, and figure out environmental performance. We introduce a new definition of pollution intensity and its method measuring integrated pollution intensities. We distinguish 24 manufacturing industries into light industry and heavy industry, and divide heavy industry into pollution industry and the other residual heavy industry to measure the integrated pollution intensities and their changes. While the pollution industry within heavy industry, based on the integrated pollution intensity, was the most pollution-intensive, the other residual heavy industry within the heavy industry was the most successive in reducing pollutants. The annualized average index of the integrated pollution intensities grew as much as 9.1 percent, of which the annualized change in the index of pollution emission increased 13.3 percent, but the improvement of 3.9 percent in the change of output quantity offset the increase in the index of pollution emission. The changes in the integrated pollution intensity for the light and heavy industries were 1.125 and 1.042, respectively. The reason the heavy industry showed the lower change in the index of pollution intensity, while the change in the pollution industry was very high, was because the average change in the other heavy industry decreased around 9 percent.

  • PDF

The Impacts of Heavy Industrial Pollution Sources on The Real Estate Price Evidence from Maanshan City, China (중공업 오염원이 부동산 가격에 대한 미치는 영향 중국 마안산시 중심으로)

  • Wang, Rundong;Zhang, Zhixin;Huang, Shuai
    • The Journal of the Korea Contents Association
    • /
    • v.20 no.6
    • /
    • pp.717-729
    • /
    • 2020
  • As the environmental pollution problem in modern society is rapidly changing with industrialization, the environmental pollution problem has a direct or indirect effect on various fields. In particular, heavy industry pollutants can be a significant variable in site selection and realestate value. Therefore, this study is based on transaction data of 13apartment complexes in Maanshan City, a representative steel city in China, and uses the Hedonic Price Model to study the effect on real estate prices, mainly on heavy industry pollution during environmental pollution. The conclusion shows that the farther away from the source of pollution, the higher values are.

A Geo-statistical Assessment of Heavy Metal Pollution in the Soil Around a Ship Building Yard in Busan, Korea (통계지표를 활용한 부산지역 조선소 주변 토양 내 중금속 오염조사 연구)

  • Choi, Jung-Sik;Jeon, Soo kyung
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.24 no.7
    • /
    • pp.907-915
    • /
    • 2018
  • With the increase of metal usage in various industries, metal pollution and ecological toxicity in the environmental system have become a significant concern. A geo-statistical index has been widely used to determine contamination level with normalization through a background value. In this study, geo-statistical indexes such as an enrichment factor, accumulation index, and potential ecological risk index were used to assess metal pollution in soil at locations associated with shipbuilding manufacturing industries. Metal contamination, especially of Cu and Pb, was observed in some samples located closer to manufacturing sites. Enrichment factor and accumulation (IGEO) values were indicative of concerning levels of soil contamination in specific samples, and the soil contamination could be induced by anthropogenic sources. In further study, after more detailed sampling for soil and potential pollution sources, high interpretation techniques such as Pb isotope analysis and X-ray analysis will be needed to investigate source identification.

Sensitivity Analysis of $NO_x$ and HC on Generating Photochemical Oxidant by Using Box Model (BOX 모델을 이용한 $NO_x$ 및 HC가 광화학 옥시던트 생성에 미치는 영향에 관한 연구)

  • 김도용;산구극인;근등명;이상득
    • Proceedings of the Korea Air Pollution Research Association Conference
    • /
    • 2000.04a
    • /
    • pp.174-175
    • /
    • 2000
  • 대기오염은 화석연료를 사용한 산업혁명 이후에 본격적으로 나타난 현상이다. 특히, 중공업을 중심으로 하는 고도 성장기에는 대기오염물질의 배출이 급격히 증가하였으며, 인구집중이 심한 도시와 도시근교서의 대기오염은 사회문제로 대두되었다. 최근에는 산성비 및 온난화와 같은 지구규모의 환경문제로 발전되고 있다. 그 중에서 질소산화물(NOx)과 탄화수소(HC)에 의한 도시 대기오염은 점점 증가하는 추세이며, 특히, 광화학 옥시던트(Ox)는 발생 메카니즘이 복잡하며, 발생원과 오염지역과의 상호 연관성 파악이 어렵기 때문에 지금까지 대부분 환경평가 대상에서 제외되었으나, 향후의 환경 정책문제로 수용되고 있는 추세이다. (중략)

  • PDF

Remediation Efficiency Evaluation of Heavy Metal Contaminated Soils by Reactive Material Covered Vertical Drains in Incheon (반응물질이 도포된 연직배수재를 활용한 인천지역의 중금속 오염토양 정화에 관한 연구)

  • Shin, Eun-Chul;Eo, Jae-Won;Kim, Ki-Sung
    • Journal of the Korean Geosynthetics Society
    • /
    • v.14 no.2
    • /
    • pp.45-55
    • /
    • 2015
  • In Incheon area, 1960s of economic development planning and heavy industry center of efforts industrial park and port facilities, It is industrial land reclamation by coastal landfill, these industrial park has the characteristics of Low permeability lipid is embedded in the silty sand that was dredged. In this study, To evaluate the heavy metal adsorption ability to filter of drains that have been developed as environmentally friendly materials by applying the effective zeolite to heavy metal adsorption for soil pollution purification suitable for geological characteristics of Incheon. soil pollution Survey data and Literature search, which is the current through the industry, the most problematic was set to Cadmium (Cd) and Copper(Cu), Lead (Pb). and Using the Numerical Analysis using the Visual Modflow, was presented the most efficient drains set interval and format.

특집 - 남극 기지 건설 현황 및 전망 - 혹독한 자연환경을 극복한 세종기지, 국내 건설사(史)에 한 획 그어 - (제2남극기지 건설 올 하반기 가시화)

  • Lee, Jong-Su
    • 월간 기계설비
    • /
    • s.234
    • /
    • pp.45-53
    • /
    • 2010
  • 지난 1988년 2월 남극반도 남쉐틀랜드 군도의 킹조지섬과 넬슨섬으로 둘러싸인 맥스웰만 연안에 건설된 남극세종과학기지. 우리나라는 지구상의 유일한 비오염 지역인 극지 연구를 위해 세종기지를 건설하고 연구활동을 벌이고 있다. 세종기지 건설은 현대그룹의 현대건설, 현대엔지니어링, 현대중공업이 수행했다. 세종기지는 과학사적 의미와 함께 혹독한 자연환경을 극복하고 건설에 성공했다는 점에서 국내 건설사의 한 페이지를 장식하는 시설물이다. 이제 제2남극대륙기지 건설이 추진 중이다. 현재 건설 후보지 정밀 조사 중으로 정밀조사가 끝나면 건설사 선정 등 사업이 본격적으로 진행될 예정이다. 제2남극대륙기지 건설에 어떤 건설사 및 설비건설업체가 참여할지 주목된다. 한국해양연구원 극지연구소가 제공한 자료와 건설사 취재 등을 토대로 세종과학기지 건설과정을 살펴보고 제2남극대륙기지 건설계획을 전망해본다.

  • PDF

Estimation of air pollutant emissions from heavy industry sector in North Korea (북한의 중공업 부문 대기오염물질 배출량 추정)

  • Lee, Young Won;Kim, Yong Pyo;Yeo, Min Ju
    • Particle and aerosol research
    • /
    • v.17 no.4
    • /
    • pp.133-148
    • /
    • 2021
  • This study aims to estimate the amount of air pollutants emitted from heavy industry facilities in North Korea. To compare the emission in 2017 from the heavy industry sector in North Korea with South Korea, the heavy industry sector was classified with the South Korean classification (Matching Heavy Industry sector) and air pollutant emissions by Matching Heavy Industry sector in North Korea were estimated. The CO, NOx and SOx emissions of Matching Heavy Industry sector in North Korea are 22%, 73%, and 31% of the emission in South Korea, respectively. The air pollutant emissions in the Matching Heavy Industry sector in North Korea for CO, NOx and SOx were 0.6%, 124%, and 24% of the total air pollutant emission in North Korea estimated from EDGAR, respectively. As for the distribution of emissions by administrative district of the Matching Heavy Industry sector in North Korea, NOx was concentrated in the western part of North Korea, and CO and SOx emissions were concentrated in Hamgyong-bukto.

Monitoring of Polycyclic Aromatic Hydrocarbon Residues in Environmental Samples in Korea (국내 PAHs 오염 우려지역의 환경 시료 중 PAHs 잔류량 모니터링)

  • Lim, Jong-Soo;Kim, Seong-Soo;Park, Dong-Sik;Joo, Jin-Ho;Lim, Chun-Keun;Hur, Jang-Hyun
    • The Korean Journal of Pesticide Science
    • /
    • v.11 no.2
    • /
    • pp.95-105
    • /
    • 2007
  • The aim of this study was to determine the residual amounts of PAHs in environmental samples such as crop, soil and water collected from paddy, upland fields and forestlands near industrial zone and/or a thermal power plant in South Korea. All of the samples were analyzed by GC-mass spectrometer. The average contents of total PAHs in soil samples were 140.2 ${\mu}g\;kg^{-1}$ and the range was from 4.3 to $662.9{\mu}g\;kg^{-1}$. The detection of benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene and dibenzo(a,h) anthracene which have strong carcinogenecity was ranged from 14.2 to 167.8 ${\mu}g\;kg^{-1}$. The residual amounts and detection frequency of PAHs in soil samples from the iron and heavy industrial areas near Pohang and Busan were 3-folds more than those of the other areas. Amounts of PAHs in upland soil samples was 1.5 folds higher than those of paddy soil samples, suggesting that it may be related to the content of organic matter in soil. The average contents of total PAHs in crop samples were 9.7 ${\mu}g\;kg^{-1}$ which ranged from 4.5 to 52.2 ${\mu}g\;kg^{-1}$. However, the residual amounts of PAHs in water samples were not detected. These results showed that soils and crops were slightly contaminated with PAHs. Therefore, the investigation should be continued for evaluating a safety or risk assessment through expansion of regions and crops.

A Study on the Structural Reinforcement of the Modified Caisson Floating Dock (개조된 케이슨 플로팅 도크의 구조 보강에 대한 연구)

  • Kim, Hong-Jo;Seo, Kwang-Cheol;Park, Joo-Shin
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.27 no.1
    • /
    • pp.172-178
    • /
    • 2021
  • In the ship repair market, interest in maintenance and repair is steadily increasing due to the reinforcement of prevention of environmental pollution caused by ships and the reinforcement of safety standards for ship structures. By reflecting this effect, the number of requests for repairs by foreign shipping companies increases to repair shipbuilders in the Southwest Sea. However, because most of the repair shipbuilders in the southwestern area are small and medium-sized companies, it is difficult to lead to the integrated synergy effect of the repair shipbuilding companies. Moreover, the infrastructure is not integrated; hence, using the infrastructure jointly is a challenge, which acts as an obstacle to the activation of the repair shipbuilding industry. Floating docks are indispensable to operating the repair shipbuilding business; in addition, most of them are operated through renovation/repair after importing aging caisson docks from overseas. However, their service life is more than 30 years; additionally, there is no structure inspection standard. Therefore, it is vulnerable to the safety field. In this study, the finite element analysis program of ANSYS was used to evaluate the structural safety of the modified caisson dock and obtain additional structural reinforcement schemes to solve the derived problems. For the floating docks, there are classification regulations; however, concerning structural strength, the regulations are insufficient, and the applicability is inferior. These insufficient evaluation areas were supplemented through a detailed structural FE-analysis. The reinforcement plan was decided by reinforcing the pontoon deck and reinforcement of the side tank, considering the characteristics of the repair shipyard condition. The final plan was selected to reinforce the side wing tank through the structural analysis of the decision; in addition, the actual structure was fabricated to reflect the reinforcement plan. Our results can be used as reference data for improving the structural strength of similar facilities; we believe that the optimal solution can be found quickly if this method is used during renovation/repair.