• 자원환경지질
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• 제25권3호
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• pp.317-336
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• 1992

The garden soils, main road dusts, residential road dusts, and playground soils/dusts of Seoul, Geumsan, Onsan, and Taebaek areas were analyzed in order to investigate the level of heavy metal pollution by urbanization and industrialization. The soil pH is in the range of 5.48~8.40 and was generally neutral. The color of soils and dusts is mainly Raw Umber to dark greyish Raw Umber. Some samples from Taebaek city, a coal mining area, showed a deep black color due to contamination by coal dusts. Major minerals of the dusts and soils are quartz, feldspars, and micas, reflecting the composition of the parent rocks. However, pyrite was found as a major mineral in the samples of industrial road dusts of Onsan, a smelting area, and resicential road dusts of Taebaek. Thus, the high level of heavy metals in mining and smelting areas can be explained with the sulfide minerals. The mode of occurences of heavy metals in Seoul, a comprehensive urbanized area, were related to the metallic pollutants and organic materials through observation by scanning eletron microscopy. In main road and residential road dusts of Onsan area, Cd, Zn, and Cu were extremely high. Some industrial road and residential road dusts of Seoul area showed high Cu, Zn, and Pb contents, wereas some garden soils and residential road dusts of Taebaek area were high in As content. In general, the heavy metal contents in dust samples were two to three times higher than those in soil samples. Main road dust samples were the most reflective from the discriminant analysis of multi-element data. Cadmium, Sb, and Se in Onsan area, As in Taebaek area, Pb and Te in Seoul area were most characteristic in discriminating the studied areas. Therefore, Cd in smelting areas, As in coal mining areas, and Pb in metropolitan areas can be suggested as the characteristic elements of each pollution pattern. The dispersion of heavy metal elements in urban areas tends to orignate in main roads and deposit in garden soils through the atmosphere and residential roads. The heavy metal contamination in Seoul is characteristic in areas with high population, factory, road, and traffic decsities. Heavy metal contents are high in the vicinity of smelters in Onsan area and are decayed to background levels from one kilometer away from the smelters.

• 한국환경보건학회지
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• 제45권1호
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• pp.1-8
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• 2019

Objectives: The purpose of this study was to estimate the ventilation rate of residential homes in Korea through tracer gas methods using indoor and outdoor concentrations of carbon dioxide ($CO_2$) and $CO_2$ generation rates from breathing. Methods: In this study, we calculated the number of occupants in a home by time through data on the average number of people per household from the Korean National Statistical Office and also measured the amount of $CO_2$ generation by breathing to estimate the indoor $CO_2$ generation rate. To estimate the ventilation rate, several factors such as the $CO_2$ generation rate and average volume of residential house provided by the Korean National Statistical Office, indoor $CO_2$ concentrations measured by sensors, and outdoor $CO_2$ concentrations provided by the Korea Meteorological Administration, were applied to a mass balance model for residential indoor environments. Results: The average number of people were 2.53 per household and Koreans spend 61.0% of their day at home. The $CO_2$ generation rate from breathing was $13.9{\pm}5.3L/h$ during sleep and $15.1{\pm}5.7L/h$ in a sedentary state. Indoor and outdoor $CO_2$ concentrations were 849 ppm and 407 ppm, respectively. The ventilation rate in Korean residential houses calculated by the mass balance model were $42.1m^3/h$ and 0.71 air change per hour. Conclusions: The estimated ventilation rate tended to increase with an increase in the number of occupants. Since sensor devices were used to collect data, sustainable data could be collected to estimate the ventilation rate of Korean residential homes, which enables further studies such as on changes in the ventilation rate by season resulting from the activities of occupants. The results of this study could be used as a basis for exposure and risk assessment modeling.

• 한국실내디자인학회논문집
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• 제23권2호
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• pp.30-39
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• 2014

Korean society is running fast toward a super aging society. This means that new solutions for new problems of aged people are needed. An important area to prove is the aging-friendly neighborhood environments supporting casual contacts and meetings of old residents. This study attempts to suggest neighborhood design indicators which support casual contacts and meetings of old residents. The subjects were 24 professionals who had studied on housing environment for the elderly. They answered through the on-line questionnaire. The questionnaire consisted of items which evaluate the appropriateness of classification of neighborhood area and the indicators of each area using 5-points Likert scale. Also open questions asking adding or eliminating areas or indicator and other opinions were included. On the basis of these answers, the aging-friendly neighborhood design indicators supporting contacts and meetings of old residents was developed. They are consisted of 7 areas in neighborhood and 60 indicators. Those areas were semi-public residential area, commercial area, cultural & educational area, health & medical area, park & green area, walkway, and public traffic facilities. This would be used to design the neighborhood environments that are aging-friendly and facilitating casual contacts and meetings of all residents, especially old residents.

• 한국조경학회지
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• 제27권2호
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• pp.130-139
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• 1999

The survey site, the Hyundai Apartment Complex in the Bundang Model Complex, includes three housing layout types; super high-rise, high-rise and low-rise apartment buildings. The site includes artificial ground over underground parking lots. The overall objective of this study is to evaluate social and physical factors of housing environments in each types of layout. The data has been complied from residents of apartment through questionnaire. The questionnaire include elements of neighborhood, outdoor space, parking zones, and the overall complex design in each layout types. The predictors of outdoor space satisfaction in apartment housing complex are found as follows: "abundance of trees in quantity", "the role as front yards", "harmony of buildings with landscape", "the more distance between buildings" and "maintenance quality of site". Layout of super high-rise apartment site is most satisfied. Introduction of car-free deck space is favored by resident because of safty and quiet resting area. However the low quality of green and lack of shades on the artificial land are identified as problems.on the artificial land are identified as problems.

• 가정과삶의질연구
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• 제21권2호
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• pp.117-130
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• 2003

This study was conducted to examine elderly users' satisfaction with welfare services and the environments of the senior citizen centers in mid-sized and small cities in Korea. Three hundred and two elderly users were surveyed for this study. Age and gender differences in the level of satisfaction were found. The male elderly users and older users were more satisfied with the education programs than the female and younger users. The elderly people who reside in single-family residences were more satisfied with the educational programs and part-time job opportunities offered at the center than the elderly users who were living in apartment buildings. This could be explained by the fact that dwellers of single housing had more freedom and more room for self-regulation in scheduling their program participation, whereas the apartment building residents had rarely experienced social exchanges with their neighbors. There were significant differences in satisfaction with the environments of the centers by gender, marital status, age, level of education, religion, and housing type. The group differences were explained by the abundance of community activities that are centered around younger and female participants. Based on these findings, it is suggested that more specialized educational and social programs should be developed for the younger users in their early 60s, that co-ed religious activities and hobby programs should be expanded, and that the home-visiting welfare staff should regularly provide the elderly users the information on programs and activities.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• 제1호
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• pp.67-74
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• 2001

Now that importance of landscape planning unique to each area is emphasized, it is necessary to conduct landscape planning by taking advantage of natural environments unique to each ares, because its natural environments are regarded as one of the assets the area possesses. This study targets at Kawachinagano City, Osaka, one of the residential areas that I not only rich in natural and historical elements, but also has been rapidly growing. The purposes of this study are to evaluate change in landscape structure over time by analyzing relation between landform and pattern of expanding the built-up area at three time points of 1932, 1967, and 1994 with GIS (ARC/INFO 7.0.3, ARC/View 3.0 (ESRI)), as well as to make some suggestions for planning landscape unique to the area. Data on main ridges, sub ridges, main rivers, and other landform were read from the elevation map, and data on woodland, and parks and open spaces (having more than 3 ha area) were read from the existing land use map. The data were used to understand the natural structure of the city from topographic viewpoint. Next, the existing land use map prepared with data on the built-up area and urban axes consisting of roads and streets were overlaid on the elevation map in order to understand relation between pattern of expanding the built-up area and the natural structure.

• 토지주택연구
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• 제14권4호
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• pp.111-120
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• 2023

주거 공간에서의 시간 증가와 외부 미세먼지, 황사 등의 영향 그리고 코로나 19 이후에 실내 공기질에 대한 중요성이 점차 중요해지고 있다. 이를 해결하기 위해 주거 공간에서 기계환기의 영향이 중요해지고 있고, 국내에서는 시간당 환기횟수 0.5회에 대한 법적 기준이 있다. 하지만, 급배기구의 위치는 구체적인 기준이 없어서 관습적으로 사용되고 있다. 본 연구에서는 급배기구 위치에 따른 주거 공간의 환기 성능 영향을 분석하고자 하였다. 실험은 외부 영향을 최소화할 수 있는 대형 챔버안에 있는 목업주택에서 추적가스법 중 농도감소법을 이용해서 실제 현장시험을 진행하여 실험을 진행했다. 실험 결과 거실 공간에서 일반적으로 사용하는 급기구 2개, 배기구 2개 조합은 급기 1개 배기 2개 조합보다 공기연령이 낮았으며, 급기와 배기를 1개씩 사용하는 것보다 급기나 배기를 여러개 사용하는 것이 측정점에서 오차율이 적어 실내 환기성능이 유사한 것을 확인했다.

• 한국실내디자인학회논문집
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• 제28호
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• pp.68-76
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• 2001

Owing to the mass-housing policies of high-density and high-rise, the residential environments in Korea have come to be uniform and monotonous. Nevertheless, the design competitions introduced for th first time in 1980s have played significant roles in developing the fresh ideas and concepts in housing design. It is important to review the ideas played proposed in competitions until now in order to spread them into other housing developments. In this context, this study classified the types of unit plan and analyzed their design characteristics in the proposals of housing design competitions in 1990s.

• 한국지역사회생활과학회지
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• 제25권4호
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• pp.567-579
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• 2014

Housing environments of individuals and families can have considerable influence on their quality of life. This study examines the factors influencing housing satisfaction and compares them between rural and urban areas. A total of 3,958 households collected from a nationwide survey were analyzed using an ordered probit model. The results indicate that housing satisfaction was influenced by individual, housing, and neighborhood attributes. The factors that differentiated between rural and urban models were sex, housing type, and relationships with neighbors. The results have important policy issues for improving rural housing.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.258-259
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• 2011

This paper shows the load characteristics of IH (Induction Heating) Cookers which are those of essential appliances for electrifying residential buildings in smart places. Load experiments are carried out in the same manner as like previous two studies. The results will be used to develop new load models for smart places including heat pump loads for analyzing changed power system environments by the smart grid.