• 한국환경보건학회지
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• 제41권4호
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• pp.259-267
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• 2015

Objectives: This study evaluated the regional and seasonal concentrations of ambient hazardous heavy metals in an industrial complex area in Daegu City. Methods: A total of 64 SPM (Suspended Particulate Matter) samples were collected in non-industrial and industrial areas during 2014 and were analyzed for hazardous heavy metals elements (As, Cd, Mn, Ni, Pb) with ICP after acid extraction. Results: SPM and hazardous heavy metals concentrations showed regional (industrial complex area>non-industrial complex area) and seasonal (spring, winter>fall, summer) variations. All of the hazardous heavy metals were influenced by anthropogenic sources. The pollution index of hazardous heavy metals was very low, showing roughly one-quarter of the level of the air quality guidelines of WHO. The correlation analysis among SPM and hazardous heavy metals indicated that components of non-industrial complex areas were more related to each other than those of industrial complex areas, and the correlation in the winter was higher than in other seasons. Conclusion: It is necessary to control air pollution sources and establish related policy because hazardous heavy metals from industrial areas can influence residential areas.

• 한국환경과학회지
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• 제14권4호
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• pp.435-444
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• 2005

A survey was conducted to 890 radiological technologists working at 44 general hospitals of 16 cities and provinces across the county to determine their stress level according to regions divided into the capital city, metropolitan areas and small- and medium-sized cities. For this purpose, such factors as their working environment, role playing, job conflict and job burden were compared and analyzed according to the regions. The findings may be summed up as follows: 1. In terms of working environment, radiological technologists in the capital city were found to have the least stress(23.46), followed by those in metropolitan areas(24.53) and small- and medium-sized cities(24.85). There was a significant difference according to the regions as for the item 'worry about influence of radioactive contamination(genetic, decisive and plausible)(P<0.001). 2. As for role playing, radiological technologists in small-and medium-sized cities appeared to receive the highest stress(l8.25) followed by metropolitan areas(l7. 71) and the capital city(l6.69). There was a statistically significant difference(P<0.001) according to the regions 3. Regarding job conflict, those who work in small- and medium-sized cities turned out to get the highest stress(15.66) compared to those in metropolitan areas(15.35) and the capital city(l4.44). In terms of job autonomy, there was no significant result from the survey in spite of the difference between metropolitan areas(14.87), small- and medium-sized cities(l4.79) and the capital city(l4.66). 4. Little difference was detected according to the regions as far as the job burden(excessive or too little) was concerned. But their was a significant regional difference in tenns of patient-related factors with the capital city(11.50), small- and medium-sized cities(l0.75), and metropolitan areas(1.63)(P<0.001).

• 한국경제지리학회지
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• 제9권2호
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• pp.261-272
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• 2006

본고는 캐나다의 도시권 획정을 고찰하였다. 구체적으로 캐나다 통계청(Statistics Canada)이 센서스 연도마다 정의하는 Census Metropolitan Area/census Agglomeration(CMA/CA)에 초점을 맞추었다. CMA/CA의 획정은 도시지역의 공간적 정의를 위한 밀도접근, 토지이용 접근, 기능지역 접근 중에서 기능지역 접근에 근거한다. 그러나 CMA/CA는 그 획정과정에서 밀도접근 및 토지이용접근을 토대로 캐나다 통계청이 정의하는 등질지역으로서의 도시지역(Urban Area, UA)을 활용한다는 특성을 갖는다. 실제로 인구 10,000명 이상의 UA는 CMA/CA의 중심부가 된다. 캐나다의 CMA/CA 고찰을 통해, 본고는 우리나라 도시권 획정에 고려할만한 주요사항을 제시하였다.

• Asian Journal of Atmospheric Environment
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• 제9권1호
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• pp.1-11
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• 2015

Increasing ozone concentrations are observed over Japan from year to year. One cause of high ozone concentration in the Kanto region, which includes areas inland from large coastal cities such as metropolitan Tokyo, is the transportation of precursors by sea breezes. However, high ozone concentrations are also observed in the morning, before sea breezes approach inland areas. In this point, there would be a possibility of residual ozone existing above the nocturnal boundary layer affects the ozone concentration in the following morning. In this study, we utilized the Weather Research and Forecasting model and the Community Multiscale Air Quality model to evaluate the effect of regional precursors and residual ozone on ozone concentrations over the inland Kanto region. The results show that precursors emitted from non-metropolitan areas affected inland ozone concentrations more than did precursors from metropolitan areas. Moreover, calculated results indicate downward transportation of residual ozone, resulting in increased concentration. The residual ozone was also affected by precursors emitted from non-metropolitan areas.

• 한국초전도ㆍ저온공학회논문지
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• 제4권1호
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• pp.61-65
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• 2002

It becomes difficult and high in cost to construct new ducts and/or tunnels for power cables in metropolitan areas. This paper presents possible applications of an HTS superconducting power cables for transmitting electric power in metropolitan areas. Reflected were its important distinction such as compactness for installation in underground ducts and considerably high efficiency compared with present underground cables. In this paper, system modeling, transmission capacity and voltage class of compact HTS cables which should be applied to existing ducts were reviewed. Based on this, the following items on urban transmission system are examined. (1) A method of constructing a model system to introduce high temperature superconducting cables to metropolitan areas is presented. (2)The maximum outer diameter of HTS cables to be accommodated in exiting ducts is calculated based on the design standards for current cable ducts. (3)The voltage level that can be accommodated by existing ducts is examined.

• 지역연구
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• 제40권2호
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• pp.75-89
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• 2024

비수도권 중소도시의 도시서비스 효율성 저하 문제가 심화됨에 따라 지역거점을 통한 압축적 도시 공간을 형성하고자 철도역세권 개발의 필요성이 강조되고 있다. 대도시 주요 역세권은 복합단지 형태로의 개발이 이루어지고 있지만, 중소도시 역세권의 개발 입지적 특성에 대한 분석은 부족한 실정이다. 본 연구는 전국의 고속철도 역세권을 대상으로 개발 사업여건과 잠재수요의 특성을 분석하여 수도권 대도시, 비수도권 대도시, 비수도권 중소도시의 도시유형에 따른 입지적 특성 차이를 파악하고, 이에 적합한 개발방식을 알아보는 것을 목적으로 한다. 분석결과, '수도권 대도시 역세권'은 높은 잠재수요와 열악한 사업여건을 갖고 있는 것으로 분석되었다. 반면에 비수도권의 경우에는, '중소도시 역세권'은 양호한 사업여건과 낮은 잠재수요의 특징, '대도시 역세권'은 중간적 성격을 가지는 것으로 분석되었다. 이는 대도시와 중소도시 역세권 개발에 있어 서로 다른 개발방식의 필요성을 시사한다. 본 연구의 분석결과는 대규모 비용의 투입이 필요한 대도시 역세권은 잠재수요를 극대화하기 위한 민간참여형 사업을, 중소도시 역세권은 양호한 사업여건을 바탕으로 공공주도형 사업을 진행하거나 지역 특성에 기반한 개발을 통해 민간참여를 유도하는 것이 바람직함을 보여주고 있다.

• 한국환경복원기술학회지
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• 제23권6호
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• pp.1-14
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• 2020

Under the 「National Land Planning and Utilization Act」, Development Restriction Zones(DRZ) is one of the designated use district where the Minister of Land, Infrastructure and Transport deems it necessary to control urban development in order to prevent urban sprawl and conurbation and ensure a healthy living environment for citizens by conserving the natural environment surrounding metropolitan cities. DRZ was first designated around the Seoul Metropolitan city in 1971, and had been expanded to the 14 metropolitan areas across the country since 1977. The designated areas were accounted for about 5.4% of the total national land and its importance was demonstrated by contributing to control urban sprawl, curbing real estate speculation, and providing green space to citizens. However, DRZ has been repeatedly relaxed its regulations and allowed development under government. As a result, much of the green areas was damaged and several cities were merged and extended(conurbation). In particular, deregulation implemented for the purpose of securing land as part of national projects and local outstanding business(i.g. constructions of national rental housing, industrial complex, and international stadium) have caused continuous environmental damage around the metropolitan cities. In addition, the habitat fragmentation is in serious situation. Thus, the systematic plans for managing DRZ are necessary, since it is concerned that urban environment become deteriorate in the mid- to long-term. This study aims to continuously protect the urban environment from lifting DRZ. Therefore, firstly, we examined the environmental status through analyzing DRZ Management Plan which shall be drawn up by the Special Metropolitan City Mayor, the Metropolitan City Mayor or the Mayer/Do governor having jurisdiction, every five years to collectively manage DRZ. Secondly, we investigated the actual condition in DRZ based on the case study of Management Plan in Metropolitan areas(i.e. Seoul Metropolis, Gyeonggi-do, and Incheon Metropolis). Finally, we suggested the seven feasible improved political plan for managing DRZ.

• 한국경제지리학회지
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• 제26권3호
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• pp.190-201
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• 2023

본 연구는 비수도권 신산업 클러스터 기업의 역외 이전 요인을 살펴보고자 충청권 바이오헬스 기업을 대상으로 심층 사례 연구를 진행하였다. 기존 연구에서 상대적으로 간과된 클러스터 내 핵심 이해관계자들의 경험과 인식을 중심으로 한 내러티브 형식의 연구를 통해 비수도권에서 창업한 기업가가 기업의 성장 과정에서 수도권으로 이주하는 주요 요인과 이를 결심하기까지의 과정 등을 살펴보았다. 충청권 클러스터 내 주요 이해관계자 61명과 인터뷰를 통해, 기업가는 창업 초기 과정에는 지역의 이해관계자로부터 다양한 혜택을 받지만, 회사가 본격적인 성장 과정에 진입하게 되면 전문인력 확보와 시장 접근성 등의 문제로 수도권 이전을 고심하게 된다. 이에, 충청권에서 창업하여 기업을 이전하지 않은 기업과 이전한 기업의 사례를 바탕으로 비수도권 클러스터가 지닌 구조적인 문제점을 살펴보고, 이를 위한 정책 시사점을 제시한다.

• The Korean Journal of Ecology
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• 제21권2호
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• pp.125-131
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• 1998

Histological damage and growth inhibition of Pinus densiflora were analysed in different areas around the Metropolitan area of Seoul urban (heavily polluted), suburban (lightly polluted), and rural(unpolluted) areas. Soil properties of each area were also investigated. Contact angles of water droplet on needle leaves growing in polluted areas were lower than that in unpolluted area. Transpiration rates of needle leaves growing in polluted areas were more rapid than that in unpolluted area. These results represented that needle leaves growing in polluted areas were more susceptible to water deficit than that growing in unpolluted area was. Growths of annual ring of Pinus densiflora growing in polluted areas were lower than that in unpolluted area. On the other hand, soil pH in polluted areas was lower than that in unpolluted area. That is, the former was more acidified than that the latter was. Ca and Mg contents in polluted areas were lower than that in unpolluted area, while Al contents in polluted areas were higher than that in unpolluted area. These soil properties revealed that the effects of acid precipitates in urban and suburban areas were severer than that in rural area.

• 토지주택연구
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• 제15권1호
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• pp.77-97
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• 2024

본 연구의 목적은 국외와 국내 생태면적 관련 제도의 평가지표 항목 차이를 고찰하고 분석지표를 도출한 후 준공된 공동주택단지를 대상으로 생태면적률이 전체 적용되기 전과 후, 최근 준공 공동주택단지의 생태면적 분석지표로 구분하여 생태면적 특성 적용 차이점을 분석하고 그 시사점을 제시하는 것이다. 연구의 공간적 범위는 준공이 완료된 수도권과 비수도권 공동주택단지를 대상으로 하였다. 준공된 공동주택단지 36개소를 분석 대상지로 선정, 생태면적 기초자료를 구축 후 그 자료를 활용하여 생태면적률, 생태면적 다양성, 생태면적 연계성의 세가지 분석지표로 구분하여 수도권 지역, 비수도권 지역의 지역별, 분양주택단지･임대주택단지 등의 공동주택단지 유형별, 대규모･중규모･소규모의 단지 규모별로 분석하였다. 분석 결과 생태면적률과 생태면적 공간유형 다양성은 비수도권 지역보다 수도권 지역이, 임대주택단지보다 분양주택단지가 더 높고 다양한 것으로 나타났다. 공동주택단지 규모가 소규모보다는 중규모, 대규모일 경우가 생태면적률이 더 높고 생태면적 다양성도 더 다양하게 반영되었다. 생태면적 연계성의 경우 수도권 지역이 비수도권 지역보다 생태면적 연계 개소와 연계 유형이 더 많고 다양하게 나타났다. 본 연구의 시사점은 생태면적률과 생태면적 다양성을 확보하기 위해 공동주택단지 개발시 중규모, 대규모 개발을 고려할 필요가 있다. 생물다양성 향상을 위해 공동주택단지 내부와 외부의 생태면적 네트워크 연계가 필요하다. 향후 단지내부의 생태면적 네트워크 연계 후속연구가 필요하다.