scholarly journals Calculation Methods of Emission Factors and Emissions of Fugitive Particulate Matter in South Korean Construction Sites

2020 ◽  
Vol 12 (23) ◽  
pp. 9802
Author(s):  
Hyunsik Kim ◽  
Sungho Tae ◽  
Jihwan Yang

Recently, efforts to effectively reduce particulate matter by identifying its sources and trends have become necessary due to the sustained damage it has caused in East Asia. In the case of South Korea, damage due to fugitive dust generated at construction sites in densely populated downtown areas is significant, and particulate matter in such fugitive dust directly influences the health of nearby residents and construction workers. Accordingly, the purpose of the present study was to develop a method for calculating emission factors for PM10 and PM2.5 emission amounts in the fugitive dust generated in construction sites and to derive emission amount trends for major variables to predict the amounts of generated particulate matter. To this end, South Korean emission factors for PM10 and PM2.5 for different construction equipment and activities that generate fugitive dust were derived and a method for calculating the amount of particulate matter using the derived emission factors was proposed. In addition, the calculated total emissions using these factors were compared to those calculated using construction site fugitive dust equations developed for the United States, Europe, and South Korea, and the trend analysis of total emissions according to the major emission factor variables was conducted.

Author(s):  
Jaeyong Choi ◽  
Tay Hack ◽  
Julak Lee

Although some studies have focused on immigrants’ fear of crime in the United States, it is important to point out that the number of North Korean defectors to South Korea has rapidly increased since the 1990s. Therefore, understanding factors associated with fear of crime for North Korean immigrants, especially female defectors, is important for ensuring their successful transitions into South Korean culture. The present study used existing survey data from a sample of female North Korean defectors to explore factors related to fear of crime. Results indicate that the number of North Korean friends, language proficiency, and patriarchal attitudes toward gender were significant predictors of fear of crime for the North Korean female defectors. Findings are described and discussed as a potential source for policymaking to reduce North Korean immigrants’ acculturative stress and fear of crime and to encourage smooth transitions into new cultures.


2007 ◽  
Vol 39 (1) ◽  
pp. 47-60 ◽  
Author(s):  
Shida Rastegari Henneberry ◽  
Seong-huyk Hwang

The first difference version of the restricted source-differentiated almost ideal demand system is used to estimate South Korean meat demand. The results of this study indicate that the United States has the most to gain from an increase in the size of the South Korean imported meat market in terms of its beef exports, while South Korea has the most to gain from this expansion in the pork market. Moreover, the results indicate that the United States has a competitive advantage to Australia in the South Korean beef market. Results of this study have implications for U.S. meat exports in this ever-changing policy environment.


2021 ◽  
pp. 1-21
Author(s):  
HYUN KYONG HANNAH CHANG

Abstract Protestant music in South Korea has received little attention in ethnomusicology despite the fact that Protestant Christianity was one of the most popular religions in twentieth-century Korea. This has meant a missed opportunity to consider the musical impact of a religious institution that mediated translocal experiences between South Korea and the United States during the Cold War period (1950s–1980s). This article explores the politics of music style in South Korean diasporic churches through an ethnography of a church choir in California. I document these singers’ preference for European-style choral music over neotraditional pieces that incorporate the aesthetics of suffering from certain Korean traditional genres. I argue that their musical judgement must be understood in the context of their lived and remembered experience of power inequalities between the United States and South Korea. Based on my interviews with the singers, I show that they understand hymns and related Euro-American genres as healing practices that helped them overcome a difficult past and hear traditional vocal music as sonic icons of Korea's sad past. The article outlines a pervasive South Korean/Korean diasporic historical consciousness that challenges easy conceptions of identity and agency in music studies.


Author(s):  
Sung-Ju Kim ◽  
Bok Gyo Jeong

From the early 1990s to the present, the nonprofit sector in South Korea has grown exponentially in size and scope, resulting in increased calls for the development of nonprofit education programs to educate future leaders of the nonprofit sector in South Korea. This article reports on a study undertaking to determine the scope and dimensions of the nonprofit and non-governmental organization (NPO/NGO) education in South Korea, identifying university-based nonprofit education programs in South Korea and analyze curricular content employing Wish and Mirabella’s seven-category model for evaluating curricular content in nonprofit programs. At present, South Korea offers 23 NPO/NGO degree programs at 16 universities with a combined total of 634 courses being offered as part of these degree programs. In addition, there are 45 universities offering three or more NPO/NGO related courses outside of the identified 23 NPO/NGO degree programs among the top 50 South Korean Universities, including the aforementioned 16 universities. Our findings show that South Korean NPO/NGO degree programs are more focused on advocacy and public policy related topics than on other categories of curriculum content, and with very little focus on financial management related topics in particular. The paper concludes with a discussion of the unique structure of NPO/NGO degree programs compared with programs in the United States, highlighting the proportional difference between the internal and external functions.


Framed by War ◽  
2019 ◽  
pp. 148-173
Author(s):  
Susie Woo

This chapter looks at what happened to the Korean women and children who remained in South Korea. It sets the stage by describing how President Rhee’s 1953 directive to remove children with American fathers to the United States heightened the vulnerability of those who stayed. The South Korean government worked closely with Harry Holt and in 1954 established Korea’s first welfare agency, Child Placement Service, expressly to remove mixed-race children. The chapter describes how US racial identification practices used to determine which children were “part-black” were introduced to and became institutionalized in South Korea. It also describes how Korean women were erased in this process. They were coerced to give up their mixed-race children and were offered no support from either government. For the children, solutions ranging from segregated schools to welfare reports that pathologized them as “social handicaps” relegated this population to the margins. The chapter ends with a consideration of how mixed-race children and the mothers who fought to raise them navigated the ongoing legacies of US militarization in South Korea.


2019 ◽  
Vol 11 (7) ◽  
pp. 1906 ◽  
Author(s):  
Hui Yan ◽  
Guoliang Ding ◽  
Hongyang Li ◽  
Yousong Wang ◽  
Lei Zhang ◽  
...  

Construction activities generate a large amount of dust and cause significant impacts on air quality of surrounding areas. Thus, revealing the characteristics of construction dust is crucial for finding the way of reducing its effects. To fully uncover the characteristics of construction dust affecting surrounding areas, this study selected seven representative construction sites in Qingyuan city, China as empirical cases for field evaluation. In the experiment, the up-downwind method was adopted to monitor and collect TSP (total suspended particulate), PM10 and PM2.5 (particulate matter ≤10 µm and 2.5 µm in aerodynamic diameter, respectively) concentrations, meteorological data and construction activities of each site for 2 to 3 days and 18 h in a day. The results show that the average daily construction site makes the surrounding areas’ concentration of TSP, PM10 and PM2.5 increase by 42.24%, 19.76% and 16.27%, respectively. The proportion of TSP, PM10 and PM2.5 in building construction dust is 1, 0.239 and 0.116, respectively. The large diameter particulate matter was the major constituent and the distance of its influence was limited. In addition, construction vehicles were one of the main influencing factors for building construction dust. However, building construction dust was not significantly correlated with any single meteorological factor when it did not change too much. Findings of this research can provide a valuable basis for reducing the impact of building construction dust on surrounding areas.


2019 ◽  
Vol 11 (13) ◽  
pp. 3629 ◽  
Author(s):  
Hannah Cho ◽  
Sang-woo Ji ◽  
Hee-young Shin ◽  
Hwanju Jo

The South Korean government is pursuing a national project to use the complex carbonates found in coal ash to capture CO2 and promote coal ash recycling. One possible approach is the use of coal ash as fill material in mine reclamation, but environmental concerns have so far blocked the implementation of this procedure, and no relevant regulations or guidelines exist. In this study, we review international approaches to the environmental management of coal ash recycling and consider how the lessons learned can be applied to South Korea. Each studied country was proactively using coal ash for beneficial uses under locally suitable conditions. The United States, European Union, United Kingdom, Australia, and Japan are all putting coal ash to beneficial use following thorough analyses of the environmental impact based on several considerations, including bulk concentration, coal ash leachate concentration, field inspections, and water quality monitoring. Our findings can contribute to the development of proper regulations and policies to encourage the use of recycled coal ash in South Korea as an approach to managing carbon emissions and climate changes. There are currently no relevant regulations in South Korea, so we consider the adoption of the strictest standards at each stage of the other cases at the time of introduction. Based on our findings, detailed and appropriate management guidelines can be developed in the future. Establishing management plans for complex carbonates, verifying their environmental stability, and using them as fill material will provide clear benefits for South Korea in the future.


2017 ◽  
Vol 17 (3) ◽  
pp. 259-283 ◽  
Author(s):  
Woo Chang Kang ◽  
Ji Yeon Hong

AbstractIn this paper, we examine the extent to which wartime violence against civilians during the Korean War affects people's current attitudes toward South Korea and other involved countries. Using a difference-in-differences (DID) approach that compares the cohorts born before and after the war, we find that direct exposure to wartime violence induces negative perceptions regarding perpetrator countries. As many of the civilian massacres were committed by the South Korean armed forces, prewar cohorts living in violence-ridden areas during the war demonstrate significantly less pride in South Korea today. In contrast, postwar cohorts from those violent areas, who were exposed to intensive anti-communist campaigns and were incentivized to differentiate themselves from the victims, show significantly greater pride in South Korea, and greater hospitality toward the United States than toward North Korea, compared to prewar cohorts in the same areas and to the same cohorts born in non-violent areas.


Author(s):  
Engr. Jeferd E. Saong ◽  
Abigail L. Babaran ◽  
Glenn Dale A. Balaho

Construction sites generate high levels of dust typically from concrete, silica, asbestos, cement, wood, stone, and sand. Workers who are exposed to the said environment are faced with the risk of inhaling particulate materials that might lead to adverse respiratory problems. The lack of publication on the awareness of construction workers on the risk associated with silica dust exposure was the basis of the study. This study assessed the level of awareness of construction workers on the risk associated with silica dust exposure and the safety practices to minimize it. Purposive sampling was used in the selection of 65 respondents from different construction sites located in Baguio City, Philippines. A survey questionnaire containing four point Likert scales were used to determine the level of awareness on the health effects, mode of transmission, and sources of silica dust. The study further assessed the level of safety practices in mitigating the effects of silica dust exposure. The respondents were moderately aware (M=2.52) of the health effects, moderately aware (M=2.69) of the mode of transmission, and moderately aware (M=3.08) of the sources of silica dust. The results further showed that the respondents moderately practiced (M=2.84) activities to mitigate the health effects of silica dust exposure and moderately practiced (M=3.17) the use of personal protective equipment in the construction site. The results suggest that construction workers must be made more aware of the health effects of silica dust exposure and, mitigation activities and utilization of personal protective equipment must be strictly imposed in the construction site.


2021 ◽  
Vol 12 ◽  
Author(s):  
Xinhao Yang ◽  
Yitong Wang ◽  
Ruining Zhang ◽  
Yuan Zhang

Construction noise is an integral part of urban social noise. Construction workers are more directly and significantly affected by construction noise. Therefore, the construction noise situation within construction sites, the acoustic environment experience of construction workers, and the impact of noise on them are highly worthy of attention. This research conducted a 7-month noise level (LAeq) measurement on a construction site of a reinforced concrete structure high-rise residential building in northern China. The noise conditions within the site in different spatial areas and temporal stages was analyzed. Binaural recording of 10 typical construction noises, including earthwork machinery, concrete machinery, and hand-held machinery, were performed. The physical acoustics and psychoacoustic characteristics were analyzed with the aid of a sound quality analysis software. A total of 133 construction workers performing 12 types of tasks were asked about their subjective evaluation of the typical noises and given a survey on their noise experience on the construction site. This was done to explore the acoustic environment on the construction site, the environmental experience of construction workers, the impact of noise on hearing and on-site communications, and the corresponding influencing factors. This research showed that the noise situation on construction sites is not optimistic, and the construction workers have been affected to varying degrees in terms of psychological experience, hearing ability, and on-site communications. Partial correlation analysis showed that the construction workers’ perception of noise, their hearing, and their on-site communications were affected by the noise environment, which were correlated to varying degrees with the individual’s post-specific noise, demand for on-site communications, and age, respectively. Correlation analysis and cluster analysis both showed that the annoyance caused by typical construction noise was correlated to its physical and psychoacoustic characteristics. To maintain the physical and mental health of construction workers, there is a need to improve on the fronts of site management, noise reduction, equipment and facility optimization, and occupational protection.


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