• Proceedings of the Korea Air Pollution Research Association Conference
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• 2004.05a
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• pp.253-254
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• 2004

• Journal of The Korean Association For Science Education
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• v.37 no.6
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• pp.911-920
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• 2017

The purpose of the study is to investigate the effects of community-based SSI programs (SSI-COMM) regarding "fine dust" on promoting middle school students' understanding of community issues and their character and values as citizens. SSI-COMM on fine dust was implemented in 4 middle schools located in Seoul, and 151 7th graders participated in the program lasting over 8 weeks. Data was collected through two questionnaires (i.e. students' understanding of issues, and character and values as citizens) and individual interviews with selected students. Results indicated that there were statistically significant increases in their understanding of fine dust issue after the program. In addition, the program significantly contributed to enhancing students' character and values, especially in the domains of social and moral compassion and socioscientific accountability. Student interviews revealed that they became more aware of the local community problems caused by fine dusts and started to consider what efforts should be made to solve them. They also felt individual responsibility for the occurrence of fine dust, and the need for participation and practice of community activities for vulnerable groups in affected areas.

• Journal of Korean Elementary Science Education
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• v.41 no.3
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• pp.468-479
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• 2022

In this study, we developed an environmental education program for fine dust using artificial intelligence-based tools. We applied this program to elementary school students to investigate its effect on environmental sensitivity and self-efficacy. The study was conducted on 29 sixth-grade elementary school students. The analysis of the pre- and post-tests gave the following results. First, the fine dust environmental education program using artificial intelligence-based tools was effective in improving the environmental sensitivity of elementary school students. Second, it had a positive effect on improving the self-efficacy of elementary school students, and third, it had a positive effect on the elementary school students' perception of the environment. After applying the program, students became more interested in the environment and fine dust. Additionally, they had a sense of environmental protection practice in connection with their daily lives. As such, it is concluded that the fine dust environmental education program using artificial intelligence-based tools had a positive effect on the environmental sensitivity and self-efficacy of elementary school students.

• Journal of Korean Society of Environmental Engineers
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• v.32 no.3
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• pp.287-295
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• 2010

Dust samples have been collected from streets, schools, subway stations and households in Daegu metropolitan city. Samples were sieved through a 100 ${\mu}m$ mesh and the concentration of 14 elements have been determined using by ICP after acid extraction. Results showed that Ca, Fe, K, Mg, Mn, Na and V were influenced by natural sources while Cd, Cr, Cu, Ni, Pb and Zn were influenced by anthropogenic sources. The measured values were remarkably higher in components from natural sources than in components from anthropogenic sources. In particular, school dust had higher levels of Ca and Pb and subway station dust had higher levels of Cu and Zn. The percentage composition of chemicals from subway stations, households, and schools were remarkably higher in components from anthropogenic sources than that from streets. It is well recognized that anthropogenic sources were affected by indoor dust. Results of pollution index of hazardous heavy metals indicated that schools, households, and subway stations were more contaminated than streets and urban areas typically had higher pollution index than rural areas. The correlation analysis among trace elements seem to suggest that there were correlations between components of soil/road dust resuspension, and components of waste incineration and fuel combustion.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2005.11a
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• pp.150-152
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• 2005

• Journal of Cadastre & Land InformatiX
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• v.51 no.2
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• pp.141-150
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• 2021

Fine dust is a substance that greatly affects human health, and various studies have been conducted in this regard. Due to the human influence of particulate matter, various studies are being conducted to predict particulate matter grade using past data measured in the monitoring network of Seoul city. In this paper, predictive model have focused on particulate matter concentration in May, 2019, Seoul. The air pollutant variables were used to training such as SO₂, CO, NO₂, O₃. The predictive model based on Adaboost, and training model was dividing PM₁₀ and PM_2.5. As a result of the prediction performance comparison through confusion matrix, the Adaboost model was more conformable for predicting the particulate matter concentration grade. Although air pollutant variables have a higher correlation with PM2.5, training model need to train a lot of data and to use additional variables such as traffic volume to predict more effective PM₁₀ and PM_2.5 distribution grade.

• Korean Journal of Remote Sensing
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• v.34 no.5
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• pp.763-775
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• 2018

In this study, the effects of wind fences on the dispersion of the particles emitted from a constructing site located in the building-congested area in Busan, Korea, using geographic information system (GIS) and a computational fluid dynamics (CFD) model. We averaged the wind speeds observed for 10 years at the Busan automated synoptic observing system (ASOS) and we used the averaged wind speed as the wind speed at the reference height (10 m above the ground level). The numerical simulations were performed for 16 inflow directions, before and after the construction of wind fences with the heights of 5 m and 10 m (total 48 simulations). The detailed flows were analyzed for the northeasterly and south-southwesterly cases which predominantly observed at the Busan ASOS. In the northeasterly case, high concentration appeared at the elementary school next to the construction site due to transport by the airflow coming from the northeast. In the 5-m wind fence case, the wind speeds were slightly weaker and the spread of the fugitive dust was slightly less than those in the no wind fence case. In the 10-m wind fence case, the dust concentration at the elementary school has the maximum reduction of 37%. In the south-southwesterly case, the flow pattern became complicated in the construction site due to the terrain and buildings. Fugitive dust was stagnant at the south side of the construction site but rather spread to the north, increasing the concentration at the elementary school. After the wind fence was built, the concentrations inside the construction site became high as the wind speeds decreased inside, but, the concentrations in the elementary school rather decreased.

• The Journal of the Korea Contents Association
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• v.21 no.6
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• pp.620-628
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• 2021

This study was conducted to investigate public's perception of the effects of particulate matter (PM) in oral health and to provide specific motivation to prevent oral disease by PM. A total of 134 adults were selected as final analysis subjects from some people all over the country. The data collected is analyzed using SPSS 21.0 for windows. Frequency analysis was used to identify general characteristics and hygiene habit. For identifying perception of effects of PM on oral health, crossover analysis was used. The largest number of people recognized that the level of PM had deteriorated, compared to five years ago. That perception was highest among those in 30 years of age and service professions. Those who check the concentration of PM are more concerned with oral health care when the PM is occurred in high concentration. People who perceive PM as a threat to the oral health are more concerned about oral health care when the PM is occurred in high concentration. It is concerned those who are aware of the relationship between PM and oral health specifically manage the oral health to protect the oral cavity from PM.

• KLA journal
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• v.53 no.3
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• pp.24-27
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• 2012

채 10년도 안되는 기간동안 학교도서관은 천국과 지옥을 오가고 있다. 2002년부터 교육인적자원부(현 교육과학기술부) 주도로 시작된 '학교도서관활성화사업'을 통해 낡은 학교도서관 시설은 현대식으로 바뀌었으며, 교원으로서 사서교사는 1998년부터 지속적으로 현장에 배치되었고, 2007년 "학교도서관진흥법"이 제정되면서 나름 학교도서관에 대한 구체적인 법적 관심을 받았다. 먼지 쌓이는 교실 한 칸도 되지 않던 창고같던 학교도서관은 늘어난 장서와 PC를 포함한 다양한 IT 기기, 편안하게 책을 읽을 수 있는 교구 등을 갖추면서 나름 도서관답게 바뀌기 시작했던 시기이다. 학교도서관 운영의 주체성과 자율성을 가질 수 있는, 많지는 않더라도 교사라는 지위로 사서교사가 전국의 초 중등학교에 지속적으로 배치되던 시기이기도 하다. 도서관 관련 법에서 늘 구석에 있던 학교도서관은 "학교도서관진흥법" 및 시행령이라는 단독법안으로 제정되어 법리 상 관심을 받던 시기였다. 여기에 더해 책 읽기에 대한 관심이 커지면서 학교도서관을 중심으로 다양한 책읽기 프로그램 등이 운영되고 나름 학교도서관이 활성화되는 것 같았다. 하지만 화려하게 바뀐 학교도서관은 자격이 있는 인적자원 배치와 지속적인 장서의 공급 등을 통해 유지되기보다는 운영시간 연장 등 시설 자체의 운영에 초점이 맞춰지는 시기로 바뀌었다. 98.6%에 이르는 학교도서관 설치 대비 46% 밖에 되지 않는 인적자원의 배치 현황, 그나마 학교도서관에 배치된 인적자원의 14.7%만이 정규직 사서교사, 사서(직원)이라는 현실은 안정적이고 지속적인 인적자원 배치에 대한 기대를 더 이상 할 수 없는 어려운 시기로 바뀌었음을 보여준다. 단독법안으로 학교도서관의 진흥과 활성화에 기여할 것으로 기대했던 "학교도서관진흥법"은 학교도서관 관련 시설, 인적자원, 운영에 대한 분명하고 명확하지 않은 법조항 때문에 관점에 따라 다양한 해석을 할 수 있어 오히려 학교도서관의 발전을 저해한다는 일부의 비판도 받았다.

• Journal of Cadastre & Land InformatiX
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• v.48 no.2
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• pp.185-195
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• 2018

In the Seoul Metropolitan City, the PM(pariculate matter) application used by the citizens provides the PM concentration of the nearest monitoring stations located on the PM monitoring stations. Currently, the selecting method of the PM monitoring network considered by the Ministry of Environment is based on considering the monitoring station distribution and population density only. In this study, we analyzed the distance between PM monitoring station and the administrative center point in addition to the above considerations. The number of test sites was verified and the range of coverage of each monitoring stations was indicated by using the Voronoi algorithm and hexagon grid. The spatial position problem of the PM monitoring station was suggested by spatial data analysis. The variables of spatial data analysis are single-family houses, apartments, $1^{st}$ class neighborhood, $2^{nd}$ class neighborhood, garbage disposal plant, hazardous material disposal facility, factory, and the density map. The analysis result of the selection criterion considering the additional variables for new PM monitoring stations was presented, in addition to the selection criteria provided by the Ministry of Environment.