• 제목/요약/키워드: metropolitan cities

검색결과 801건 처리시간 0.026초

PMF 모델을 이용한 수도권 내 3개 도시에서의 PM10 오염원의 기여도 추정 (Estimation of PM10 Source Contributions on Three Cities in the Metropolitan Area by Using PMF Model)

  • 이태정;허종배;이승묵;김신도;김동술
    • 한국대기환경학회지
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    • 제25권4호
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    • pp.275-288
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    • 2009
  • The Korean government strengthened the environmental polices to manage and enhance Metropolitan Area air quality, and also has enforced "Special Act on Seoul Metropolitan Air Quality Improvement (SASMAQI)" issued in Dec. 2004. Recently government expanded the Seoul Metropolitan Air Quality Management District (SMAQMD) to the outskirts satellite cities of Seoul area through the "Revised Law Draft of SASMAQI". The SMAQMD has been alloted the allowable emission loads to the local governments on the basis of the carrying $PM_{10}$ capacity. However, in order to establish the effective air quality control strategy for $PM_{10}$, it is necessary to understand the corresponding sources which have a potential to directly impact ambient $PM_{10}$ concentration. To deal with the situations, many receptor methodologies have been developed to identify the origins of pollutants and to determine the contributions of sources of interests. The objective of this study was to extensively identify $PM_{10}$ sources and to estimate their contributions at the metropolitan area. $PM_{10}$ samples were simultaneously collected at the 3 semi-industrialized local cities in the Seoul metropolitan area such as Hwasung-si, Paju-si, and Icheon-si sites from April 15 to May 31, 2007. The samples collected on the teflon membrane filter by one $PM_{10}$ cyclone sampler were analyzed for trace metals and soluble ions and samples on the quartz fiber filter by another sampler were analyzed for OC and EC. Source apportionment study was then performed by using a positive matrix factorization (PMF) receptor model. A total of 6 sources were identified and their contributions were estimated in each monitoring site. Contribution results on Hwasung, Paju, and Icheon sites were as follows: 33%, 27%, and 27% from soil source, 26%, 26%, and 21% from secondary aerosol source, 11%, 11%, and 12% from biomass burning, 12%, 6%, and 5% from sea salt, 7%, 15%, and 19% from industrial related source, and finally 11%, 15%, and 16% from mobile and oil complex source, respectively. This study provides information on the major sources affecting air quality in the receptor sites and thus it will help to manage the ambient air quality in the metropolitan area by establishing reasonable control strategies, especially for the anthropogenic emission sources.

도시민의 농촌어메니티자원 체험욕구 분석 (An Experience Needs Analysis on the Rural Amenity Resources of Urbanites)

  • 윤희정
    • 한국조경학회지
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    • 제36권1호
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    • pp.28-37
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    • 2008
  • This study intends analyzes the experience urbanites need regarding rural amenities when visiting rural areas for leisure. For this purpose, 18 rural amenities that can be experienced at 65 traditional rural villages and are designated by the rural development administration(RDA) were selected. Based on rural amenity selection, a questionnaire survey was conducted in 10 cities with 1,052 urban residents. The cities were divided into 5 metropolitan cities(Seoul, Busan, Daegu, Kwangju and Daejeon) and 5 small cities in each province(Chuncheon, Suwon, Jeonju, Chungju and Pohang). The study results suggest that of the 18 rural amenities, urbanites want greater experience with landscape resources near water and forests, health resources related to food and traditional resources such as traditional architecture and culture. Those amenities not chosen were animals, famous people and agricultural landscapes. In addition, women indicated more experience needs than men. Specifically, women want to experience the rural amenities dealing with tradition and health. In addition, people under 40 want to experience active program related festivals(events) and arts and crafts, whereas the group over 40 prefers a non-active program, such as observing the rural landscape and planting. College graduates want to experience the landscape while college students prefer arts and crafts and festivals(events). Those with below average salaries want to experience the most rural amenities. There were no differences in experience needs between those surveyed in metropolitan cities and those in small cities. Finally, the people who visited rural areas within the last year want to experience water, plants, agricultural landscape, health and rural life resources more than other groups, and there is correlation between plans to visit rural villages and experience needs. The results of this study provide insightful information for rural planning strategies such as selection of the type of marketing segments.

노동력 고령화가 인적자본 취업비중과 1인당 지역총생산에 미치는 효과: 우리나라 광역시와 도를 중심으로 (The Effect of Workforce Aging on Human Capital Job and Regional Economic Performance in Korea: focusing on Metro Cities and Provinces)

  • 이성훈;이향수;정용훈
    • 디지털융복합연구
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    • 제18권5호
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    • pp.25-31
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    • 2020
  • 본 연구는 우리나라 광역시와 도를 중심으로 1995-2017년의 지역별 패널통계를 활용하여 노동력 고령화가 인적자본 취업비중과 1인당 지역총생산에 미치는 영향을 분석하였다. 지역별 고정효과를 반영한 2단계 최소자승 패널 회귀 분석 결과에서 노동력 고령화는 광역시의 인적자본 취업비중과 1인당 지역총생산에는 영향이 없는 반면, 도의 인적자본 취업비중과 1인당 지역총생산은 유의한 수준에서 감소시키는 것으로 나타났다. 또한 서비스 사업체 비중은 광역시의 인적자본 취업비중에 긍정적 영향을 미치지만 도에서는 그 효과가 유의하지 않게 나타났으며, 광역시에서는 인적자본 취업비중이 1인당 지역총생산 증가에 유의하게 기여하고 있지만 도의 경우는 물리적 자본이 1인당 지역총생산 증가에 유의하게 기여하고 있는 것으로 나타났다. 이와 같은 광역시와 도에 따른 다른 분석결과는 노동력 고령화에 대응하는 인적자본과 1인당 지역총생산 증가를 위한 광역시와 도의 최적화된 정책은 지역에 따라 차별화시켜야 함을 시사한다.

자동차 교통사고에 의한 도시유형의 특성 (Characteristics of Cities Types by Automobile Traffic Accidents)

  • 한주성
    • 한국경제지리학회지
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    • 제10권2호
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    • pp.137-152
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    • 2007
  • 본 연구는 자동차 교통사고에 의한 도시를 유형화하고, 각 유형의 교통사고 특성을 밝히는 것을 목적으로 한다. 자동차 교통사고에 의한 유형도시는 4가지로, A유형은 서울시로 '자동차 용도와 사고유형'과 가장 강한 관련을 맺고 있고, B유형은 오산시로 교통사고 발생규모가 매우 큰 도시이다. C유형은 서울시의 위성도시와 광역시, 남동임해공업지역에 분포하는데, 교통사고의 발생규모가 작은 도시군이다. D유형은 의정부시를 포함한 57개 도시로 전국에 분포하는데, 전국평균보다 자동차 교통사고가 많은 도시군이다. 자동차 교통사고에 의한 각 도시유형과 교통사고 원인과의 관계에서 서울시는 안전거리 미확보, 기타 지역의 도로형태, 보행자 부상이 탁월하며, 오산시는 도로형태에서는 단일로 기타지역에서 많이 발생하며, 중앙선 침범, 14세 이하의 어린이 교통사고가 많이 발생하는 것이 그 특징으로 나타났다. 그리고 C유형은 제1당사자 법규위반에 기타가 포함되었으며, 도로형태에서 교차로 6m 미만에서의 교통사고가 많다는 점, 14세 이하의 어린이 교통사고와 보행자 부상에 의한 교통사고가 많은 것이 특징이다. 마지막으로 D유형은 제1당사자 법규위반, 교차로 운행방법, 61세 이상 부상 14세 이하의 부상, 보행자 부상이 많은 것이 특징이다.

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도시계획에 있어서 준농림지 성장관리의 문제점과 대책 (A Issue of Semi-agricultural Zones Management and Countermeasure in City Planning)

  • 임명구
    • 한국디지털건축인테리어학회논문집
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    • 제7권2호
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    • pp.25-32
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    • 2007
  • Cities should be developed and managed deliberately since reckless development and selfish expansion deteriorate the quality of life in the cities by creating various problems in transportation, residence and environment. In particular, the semi-agricultural zones have been designated in order to address such problems as the overpopulation caused by the influx of people into the cities and promote balanced regional development and eco-friendly cultivation of the land across the nation. But the problems of metropolitan areas, such as the overpopulation and lack of infrastructure, are spreading even to the semi-agricultural zones, which should be the last areas to be developed into cities. We should blame the indolence of our policies on land first, rather than the selfish cities that slip from the grip of the law. This study concludes that the self-agricultural zones should be developed and managed with plans by the public sector rather than the autonomous development by the private sector.

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수도권 도시유형별 내부 인구이동 영향요인 분석 (Analysis of the Factors Affecting on Internal Population Migration in Seoul Metropolitan Area)

  • 김상원;이훈래
    • 한국산학기술학회논문지
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    • 제17권9호
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    • pp.737-744
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    • 2016
  • 본 연구는 지역간 인구이동보다는 내부 인구이동이 증가하고 있는 수도권을 대상으로 전출입 인구현황을 파악하고, 도시유형을 분석한 후 유형별 인구이동 영향요인을 분석하였다. 수도권 시 군 구별 전출입 인구를 분석한 결과, 서울시는 송파구, 인천시는 서구, 남동구, 경기도는 용인시, 화성시 등으로 인구가 집중하였다. 수도권 시 군 구간 전출입 현황에서는 수원시에서 화성시, 성남시에서 용인시로 이동하는 인구가 많았다. 고용밀도와 인구밀도를 변수로 한 도시유형분석에서는 4개의 도시유형(도심형, 자족형, 주거형, 도농형)으로 분류되었다. 도심형인 유형1은 전세가격, 도로연장, 지하철역 수, 자족형인 유형2는 총소득 증가율, 주택보급률, 도로연장, 주거형인 유형3은 주택보급률, 도시공원면적, 전세가격, 인구밀도, 도농형인 유형4는 사업체밀도, 주택보급률, 주택공급, 지하철역 수, 교육시설 등이 인구이동에 영향을 주는 것으로 분석되었다. 이중 주택보급률은 전입인구에 긍정적인 영향을 미쳤으나 인구밀도의 경우 전출인구에 영향을 주었다. 도로, 지하철역 수의 경우 도심형은 전출인구에 영향을 주었으나, 자족형과 도농형에서는 전입인구에 영향을 미치는 것으로 나타나 유형별로 각기 다른 영향을 보였다.

대도시에 거주하는 65세 이상 노인들의 현존치아수와 의치장착상태: 제6기(2013-2015년) 국민건강영양조사 자료 이용 (The number of existing permanent teeth and the denture status of elderly adults aged 65 years and above living in metropolitan cities using data from the Korean National Health and Nutrition Examination Survey)

  • 김지수;김세연;전은주;정승화;김진범
    • 한국치위생학회지
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    • 제18권6호
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    • pp.921-932
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    • 2018
  • Objectives: The aim of this study was to investigate the number of existing permanent teeth and the denture usage status in elderly adults aged 65 years and above living in metropolitan cities and to confirm the degree of oral health inequality caused by the differences in oral conditions in each metropolitan city using the Lorenz curve and the Gini coefficient. Methods: The raw data for the analysis were obtained from the dataset of the sixth Korea National Health and Nutrition Examination Survey conducted between 2013 and 2015. The subjects included 1,764 people who underwent oral examination and answered questions. The complex samples general linear model was used to analyze the number of existing permanent teeth adjusted for age and monthly household income. The proportion of edentulousness and the denture status was analyzed using complex samples crosstabs. Results: The number of existing permanent teeth in the elderly adults aged 65 years and above was lowest in Ulsan (15.41) and highest in Gwangju (20.44). The proportion of edentulousness was highest in Busan (14.5%) and lowest in Daejeon (4.0%). With regard to the proportion of denture users, Busan had the highest tendency for denture usage (50.4%) and Gwangju had the lowest tendency (34.9) (p=0.172). The Gini's coefficient for the number of existing teeth was lowest in Busan (0.332). Oral health inequality was most severe in metropolitan cities. Conclusions: We found that oral health inequality exists among elderly adults living in the metropolitan cities of Korea using the Lorenz curve and Gini's coefficient.

Changes in dietary habits and chronic diseases before and after COVID-19 by regions using data from the 2018-2020 Korea Community Health Survey and Consumer Behavior Survey for Foods: a cross-sectional study

  • Surim Park;Eun-hee Jang;Seungmin Lee
    • 대한지역사회영양학회지
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    • 제28권2호
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    • pp.124-140
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    • 2023
  • Objectives: This study examined the changes in dietary habits, the prevalence of chronic diseases, and mental health problems in the regional areas of the Republic of Korea before and after the COVID-19 pandemic to provide evidence of the status of regional health inequalities. Methods: This study analyzed Korean adults aged 19 or older who participated in the Korea Community Health Survey (n = 686,708) and Consumer Behavior Survey for Foods (n = 19,109) from 2018 to 2020. The participants were classified according to their residence area (Seoul metropolitan area, Metropolitan cities, Provinces); 2018-2019 were defined as before COVID-19, and 2020 as after COVID-19. The dietary behaviors, chronic diseases, and mental health problems were measured using a self-report questionnaire. Results: After COVID-19, the eating-out usage rate in the Seoul metropolitan area and Provinces decreased compared to before COVID-19 (P < 0.001), and when responding that they eat out, the frequency of eating out with household members in the Seoul metropolitan area increased (P = 0.024). The deliveries/takeout usage rate in the Provinces decreased after COVID-19 compared to before (P < 0.001). After COVID-19, the prevalence of obesity decreased in all regions (P < 0.001), and the prevalence of hypertension increased significantly in the Provinces (P = 0.015). The prevalence of diabetes mellitus increased continuously before and after COVID-19 in all regions (P < 0.002). High-risk subjective stress levels increased significantly in the Seoul metropolitan area (P < 0.001), and sleep duration significantly increased in all regions (P < 0.001). Major depressive disorder was reduced significantly in Metropolitan cities (P = 0.042) and Provinces (P < 0.001). Conclusions: After the COVID-19 pandemic, the prevalence of chronic diseases and mental health problems showed regional differences along with changes in dietary habits. It is necessary to reflect the regional differences in dietary habits in future policies resolving regional health inequalities.

경상북도 4개 도시의 녹지파편화 현상 비교 (Comparison of urban forest fragmentation between four cities in Kyungpook, Korea)

  • 장갑수;박인환
    • 환경영향평가
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    • 제8권4호
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    • pp.13-23
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    • 1999
  • This study was carried out to investigate the degree of impact from road construction and forest fragmentation after urbanization. And this study was also conducted to compare the urban forest fragmentations of four cities, Taegu, Pohang, Kyungju, and Kumi, in Kyungpook, Korea, with referring the Landsat TM remotely sensed data. Taegu metropolitan city has the largest forest volume of our surveying sites, comparing with three other cities-Kyungju Pohang Kumi city in kyungpook, Korea. The forest has been fragmented during urbanization, the number of forest patch has been increased, therefore, the patch size has been smaller. The forest in Pohang and Kyungju city represented the intermediate aspect between Taegu Metropolitan city and Kumi city, it means forest of the region has been stable condition. Road construction brings to increasing edge habitat area. However, as the core area was decreased, the habitats have been unstable. This result can be a basis on the management of the forest which is the origin of biodiversity. Hereafter, if the research, based on the multi-temporal remote sensing data, is proceeded continuously, the forest fragmentation will be able to be reduced. We will be able to settle urban forest management more practically.

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장기요양보험 등급판정 대상자의 지역별 방문간호 서비스 이용 만족도 및 요구도: 대도시, 중소도시, 농촌 지역을 중심으로 (Regional Comparison of Home Visiting Care Service Satisfaction among Elder Beneficiaries of the Long Term Care Insurance)

  • 곽찬영
    • 지역사회간호학회지
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    • 제27권2호
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    • pp.114-123
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    • 2016
  • Purpose: This study aims at comparing levels of service satisfaction with and needs for visiting nurse(VN) services among their beneficiaries in order to make a plan for extending VN services. Methods: The number of the subjects of this study is 270 in total. They were selected in random sampling in which 30 VN service recipients were randomly selected from each of 7 regions based on their grades and region types. Results: The highest total score for satisfaction with the VN services was 46.30, which the rural residents gave to their received VN services, then the metropolitan residents gave 44.57, and the small and middle size cities' residents 43.64. On the other hand, the highest total score for needs for VN services was 33.03, which the small and middle size cities' residents gave to their received VN services, then the rural residents gave 31.68, and the metropolitan residents 30.88. Conclusion: As the small and middle size cities' residents showed low satisfaction with and high needs for local VN services, policies need to be made to promote service providers' expertise and accessibility.