• Journal of Cadastre & Land InformatiX
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• v.49 no.2
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• pp.83-92
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• 2019

The particulate matters show high values in winter and spring season, it has a bad influence on the outdoor people. That's why government needs to come up with countermeasures for social weak people like elementary school students. In this paper, new particulate matter stations select ed about elementary schools using spatial analysis. Seoul city areas were divided with 608 hexagon grids(500m), and then implement spatial analysis such as kernel analysis. Finally, new particulate matter stations select through the results of kernel density analysis and point displacement. The results show that, 10 hexagon grids about new particulate matter stations were selected and listed 15 elementary schools including 10 hexagon grids. The 15 elementary schools were including Gangbuk gu, Eunpyeong gu, Guro gu, Dong gu, Geumcheon gu, Dongdaemun gu, Gangdong gu, Songpa gu, Gwangjin gu and Gangnam gu. The results suggests a new management plan direction according to the spatial analysis, result in the process of selecting the measures for the '2018 School Fine Dust Comprehensive Management Measures' announced by the Ministry of Education. Also, this study can be expanded by adding specific buildings as well as the school.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.24-26
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• 2019

Air Pollution is increasing in Korea due to recent factory and environmental pollution and desertification in China. People are said to be wearing masks or reducing outdoor activities, but there is little effect on quarantine. Therefore, in order to clean up Air Pollution that has an adverse effect on the body, the government is planning to design a Prototype, an Air Pollution measuring system based on the Internet of Things.

• Air Cleaning Technology
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• v.32 no.4
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• pp.22-31
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• 2019

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.4
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• pp.829-835
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• 2017

Recently, the health issues triggered by fine dust matters occurred in higher frequency. Having adverse effects on health, particulate matters affect the human body indoors as well as outdoors. There is thus a need for a system to measure the concentration of particulate matters and control harmful particulate matters for human health in the indoor spaces where people live. The present study applied Internet of Things(IoT) technologies in order to increase the efficiency of the conventional fine dust measurement system. Especially, for the bidirectional communication environment, directly construct a separate server and applied to the system instead of a free cloud server also we used it directly in the school lab and home. When the proposed system is used in schools and homes, it can recognize the indoor environment quickly and it is expected that this will gradually contribute to the health of the individual. Users can also check the server data outside and deal with the current indoor situations.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.21 no.3
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• pp.43-48
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• 2022

A scattering dust collector in automobile brake pads was investigated in this study. The dust scattering was measured by mounting a booth with a particle counter for both the vehicle-induced wind and brake caliper locations. In addition, the collection effect of the dust scattering was analyzed using the designed dust collector. The results of this study can be used to develop an advanced dust collector and the field test modes for dust scattering in an automotive brake system.

• The Science & Technology
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• v.35 no.5 s.396
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• pp.47-50
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• 2002

황사 - 학술적으로는 '모래/먼지 폭풍'이라 불리우는 황사구름이 한반도를 덮쳤다. 그것도 한반도에서 황사를 관측한 이래 최악의 농도를 가진 인체에 유해한 상태였다. 정부는 전국에 황사 비상령까지 내렸고 초등학교는 휴교까지 했다. '황사태풍' 또는 '모래/먼지 폭탄'이라고 불리웠던 지난 3~4월의 황사에 대해 인공위성으로 추적하는데 성공한 대기환경연구실 정용승박사에게 듣는다.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2020.10a
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• pp.90-90
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• 2020

• KLA journal
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• v.45 no.5 s.348
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• pp.24-29
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• 2004

학교 교사의 끝, 길고 좁은 골마루의 끝부분, 보일러실의 옆, 1층이라고 하지만 반 지하, 굳게 잠겨 있는 자물쇠, 출입문을 열면 학교도서관(교실 두 칸 정도 규모의 도서실이지만 학교도서관이라고 통칭하자.)은 모습을 드러낸다. 코를 자극하는 오랜 된 책 냄새, 잔뜩 쌓인 먼지, 여기저기 흩어져 있는 책, 훼손된 책, 여름 장맛비에 잠겼다가 말라서 부풀어 오른 책, 곰팡이 핀 책, 어떻게 분류해 놓은 것인지 도저히 알 수 없는 서가배열, 어디서부터 손을 대어야 좋은지 모를 곳, 이런 곳이 학교도서관의 주소였다. 그런 학교도서관을 새 단장하는 일이 대부분 비정규직 사서교사의 몫이다.

• Journal of Korean Society of Environmental Engineers
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• v.29 no.12
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• pp.1390-1399
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• 2007

Samples of 45 school dust were collected in Daegu in January 2007, were sieved below 100 ${\mu}m$, and 14 elements were analyzed using ICP after an acid extraction. Results obtained from the source assessment of trace elements using enrichment factor showed that dust from playground were influenced by natural sources, while dust from classroom were influenced by urban anthropogenic sources. The measured values were remarkably higher in components from natural sources than in components from urban anthropogenic sources. Dust from classroom are highly concentrated than those from playground. Concentrations of dust in urban area are similar to those of dust in rural area and there was no significant difference in concentrations between classroom with playground soil and classroom with play-ground grass. Compared with other cities in Korea, concentrations of heavy metals in Daegu city were higher in classroom and lower in playground than those of heavy metals in other cities. Dust from classroom contained lower concentrations of trace elements than those from street in Daegu. Results of pollution indices of heavy metals indicated that playground was not contaminated with heavy metals and classroom was considered to be highly contaminated. No appreciable differences in playground were found between urban and rural areas but in case of classroom pollution, heavy metal concentrations were a little bit higher in urban areas than in rural areas. The correlation analysis among trace elements indicated that components in playground were significantly correlated, while components in classroom were less correlated. Trace element components of classroom dust were not significantly affected by those of playground dust.

• Air Cleaning Technology
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• v.32 no.4
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• pp.13-21
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• 2019