• 한국소음진동공학회논문집
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• 제15권6호
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• pp.645-651
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• 2005

The construction noise Is one of the main causes of environmental impact. The complaints about it have been increasing every year. In order to reduce construction machinery noise, the product noise labeling for construction machinery has been recommended since 1 February 1996 and In the near future the government will convert the recommended product noise labeling to the mandatory product noise labeling for high noise construction machinery. Therefore, we investigated the noise and vibration level of 302 construction machines in construction work sites. This paper presents the basic data that will be used for setting the standard of construction machinery noise and predicting the noise level near construction work sites in environmental Impact assessment.

• 한국환경과학회지
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• 제4권5호
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• pp.517-526
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• 1995

The health symptoms assessment and urinary hippuric acid excretions of workers exposed to toluene occupationally in shoes workshops were investigated by the Questionnaire and the field monitoring. Based on the results, the acute health symptoms of workers exposed to toluene by questionnaire were fatigue(58.7%), irritation of the eyes, nose and throat(57.2%), and skin dryness(43.3%). And the complaints about workshop environment are odor, dust and noise. The mean values of urinary hippuric acid excretions in m식e and female were 1.08 $\pm$ 0.50 g/l, 1.59 $\pm$ 1.27 g/l in total workers, espectively.

• 환경영향평가
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• 제22권4호
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• pp.361-367
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• 2013

Noise and vibration occurs during construction intermittently, but with the most arise complaints. There is a need to efficiently manage the construction noise and vibration problems because in case a residential facility that requires calmness around the construction site adversely affects the living conditions of nearby residents. The ministry of environment has mandating the installation of soundproofing facilities for the management of construction noise. In order to enforce a particular construction, the mandatory install with soundproofing facilities before the start of construction, and after construction. However, Installation guide of soundproofing facilities for construction sites were not considered affected areas by noise and there is no provision of performance evaluation for soundproofing facilities. In this study, investigated the status and problems of the installation guide for soundproofing facilities in construction sites, we propose an efficient installation guide of soundproofing facilities for the reduction construction noise.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 춘계학술대회 논문집 전기설비전문위원
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• pp.67-70
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• 2005

HVAC transmission lines must be designed to satisfy environmental regulations. Therefore it is necessary to pre-evaluate environmental problems for transmission line designer using prediction program. In this study, environment design software, TLCALC 2001 for transmission lines was developed as a comprehensive window program. It has 6 modules that are audible noise, radio noise, television noise, magnetic field, electric field and conductor surface gradient. TLCALC 2001 solved a few problems in use of the existing foreign tools and took several advantages. Experienced designers can get the results of calculation within about 15 minutes. Because the use of TLCALC 2001 is easy and practical, this program will be usefully applied to the environmental friendly design and construction of HVAC transmission lines. In the future, it is expected that public complaints and social environmental cost will be reduced by the use of TLCALC 2001.

• 한국지반환경공학회 논문집
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• 제10권2호
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• pp.13-20
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• 2009

최근 우리나라의 국민들의 삶의 질이 향상됨에 따라 악취발생문제가 중요한 사회이슈가 되고 있다. 특히 환경기초시설에서 발생하는 악취물질로 인한 민원 중 약 67%가 하수처리장과 음식물쓰레기 처리시설에 의한 것으로 나타났으며, 해양오염방지법 시행규칙개정으로 2012년부터는 하수오니 등의 해양투기가 전면 금지될 예정에 있어 이들 시설의 처리량 증가에 따른 관리대책마련이 시급한 실정이다. 따라서 본 연구에서는 부산시 전역의 하수처리장과 음식물쓰레기처리시설중 상대적으로 폐기물발생량이 많은 5개 하수처리장과 5개 음식물쓰레기처리시설을 선정하여 슬러지 시료를 채집하고 이들 시료에 대한 공업분석, 원소분석, XRF 분석, 발열량분석 등을 통해 시료의 물리, 화학적 특성을 알아내었다. 또한 최종적으로 시료 내 황화수소 발생가능농도 측정을 통해 황화수소발생원단위를 산정, 악취민원의 근본적 대책마련을 위한 기초 자료로써 활용 하고자 하였다. 분석결과, 하수슬러지의 황화수소농도는 평균 57.3mg/kg, 음식물쓰레기처리시설의 것은 19.7mg/kg이었다. 최종적으로 총 10개 시설 폐기물의 황화수소 발생원 단위 산정결과 16,017,910.0mg/d로 예측 되었다.

• 대한환경공학회지
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• 제29권12호
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• pp.1366-1370
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• 2007

본 연구는 김포공항 주변 거주민을 대상으로 항공기 소음에 대한 성가심 반응에 영향을 미치는 변수에 대해 알아보았다. 성가심 반응에 영향을 미칠 것으로 예상되는 독립변수는 소음변수와 비소음 변수로 구분된다. 소음 변수로는 항공기 소음원의 소음도와 도로소음 및 생활소음, 그리고 비소음 변수로는 인구통계변수와 태도변수가 성가심 반응에 미치는 영향을 분석하였다. 분석결과 소음 변수 중 다른 소음원의 경우는 성가심 반응에 큰 영향을 미치지 않았으며, 비소음 변수 중 인구통계 변수도 성가심 반응에 영향을 미치지 않았다. 그러나 비소음 변수 중 태도변수로 구분된 민원의 경우 성가심 반응에 큰 영향을 미쳤다.

• 한국환경과학회지
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• 제13권6호
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• pp.519-525
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• 2004

Air pollution from the Daegu industrial complex (Die) in Korea has been a common nuisance and cause of complaints for nearby residents. The current study measured the indoor and outdoor levels of six VOC (benzene, toluene, ethylbenzene, and three isomeric xylenes) at two residential areas with a different proximity to the ODIC, plus the ambient levels at two industrial areas within the boundary of the DDIC. The QA/QC program included the range of correlation coefficient (0.94-0.99) for calibration curves, within the permissible range. Toluene was the most abundant VOC in the ambient air both in residential and industrial areas. Both indoor and outdoor air concentrations of all target VOC except benzene were higher in residential area near the DIC compared to that further away from the DIC. Moreover, the ambient air concentrations of all target VOC except benzene for two industrial sites (A and B) were significantly higher than the outdoor or indoor air concentrations in the two residential areas. The findings further suggested that VOC ambient levels measured in a residential area near the DIC be used as a potential indicator of odor-causing unidentified air pollutants transported from the DIC. Moreover, it was found that the elevated ambient toluene levels outweighed the indoor sources with respect to the environmental exposure of residents nearby the DIC. However, in the residential area further away from the DIC, the toluene indoor sources outweighed the outdoor sources.

• 한국생산제조학회지
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• 제21권5호
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• pp.836-841
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• 2012

The repair of road pavement and manhole has been resulted long construction times and traffic jams, environmental pollution from construction wastes, and budget waste due to excessive construction costs. In order to resolve such problems, we have developed the new construction method using C-ring, which can fix and raise the manhole securely. This technology is the method by driving in a wedge after inserting C-ring and expanding it in order to raise manhole to the regular height. This has been approved by the test reports of KOLAS(Korea Laboratory Accreditation Scheme), and was confirmed safety, durability and reliabilty in result. In this paper we approved this technology was able to short working times to around 20% and construction costs to around 50% with compare other construction methods. Also, environmental pollution and civil complaints will be prevented because there will be no longer any noises, vibrations, dust, or construction wastes.

• 한국BIM학회 논문집
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• 제11권1호
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• pp.39-46
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• 2021

Urban residents in crowded complexes are making increasing civil complaints about noise and demanding pleasant and comfortable residential environments. Because noise is one of the most important factors related to urban residents' dissatisfaction with their living environments, the present study investigates the direct and indirect effects of noise-related outdoor environmental factors on residential level satisfaction, using noise level data from 29 noise-measuring stations in Seoul. From 62 multi-family apartment complexes near these stations, the authors collected GIS-based environmental attribute data, as well as survey data including the residents' personal characteristics and indicators designed to measure latent psychological characteristics: noise sensitivity and residential noise level satisfaction. This study then utilized structural equation models to analyze the direct variables influencing the latent variables of noise sensitivity and residential noise level satisfaction, as well as the complex relationships among all variables. The result showed that residents who are exposed to less noise, possibly due to living in apartments facing relatively quiet roads, protected by soundproof walls, or surrounded by densely planted trees, tend to be less noise sensitive, which makes them more satisfied with the ambient noise level. Therefore, critical outdoor environmental variables can be used to reduce noise sensitivity and improve residential noise level satisfaction.

• 한국산업융합학회 논문집
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• 제26권6_3호
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• pp.1305-1314
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• 2023

The global ship repair and modification market is expected to grow up to approximately $ 30 billion by 2025. Korea's shipbuilding industry is leading the world grounded on its international competitiveness in design and production technology. The reality, however, is that the ship repair and modification industry is centered on Gyeongnam, and there are only two to three ship repair workplaces that can repair large ships. Therefore, domestic ship repair companies target small and medium-sized ships mainly. This is because there are few workplaces equipped with a large dock in which large ships like LNG ships can be inspected regularly or repaired, complaints are severe for environmental problems, and related environmental regulations are so strict that it is very hard to obtain government approval for the extension of ship repair and modification workplaces or the opening of new shipbuilding sites. Besides, on account of the workers' high wages, few experts related, and higher ship repair price compared to that of Southeast Asia, most of the volume of repairing large ships including domestic LNG ships is being lost to Southeast Asian or Chinese markets. In this study, the work process and pre-work preparation process for ship hull (winch, windlass, hatch cover, ramp door, cargo gear, anchor chain) repair were analyzed and presented to foster domestic ship repair experts and revitalize related industries.