• 한국화재소방학회논문지
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• 제30권5호
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• pp.130-136
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• 2016

본 연구에서는 2007년부터 2013년까지 수행된 소방안전 및 구조 구급 분야 기술 체계별 연구개발비 투자 현황을 분석하였으며 이를 바탕으로 국내 소방안전 및 구조 구급분야 연구개발 역량에 대해 조사 분석하였다. 국민안전처 소방안전 분야 연구비는 점진적으로 증가하는 추세이며, 소방안전 및 특수재난 대응 기술과 소방안전 및 특수재난 예방 대비 기술 관련 R&D에 80%에 이상의 예산이 투자되었음을 알 수 있었다. 소방안전 및 구조 구급 R&D의 역량을 분석한 결과, 7점 만점 기준으로 절반(3.5점)에 못 미치는 중간 정도의 수준인 것으로 조사되었다. 향후, 국민안전처 소방안전 분야 연구개발 발전을 위해서는 자원에 대한 운용 능력이 향상될 수 있도록 예산/법/제도 등 지원 체계의 유연성 및 합리성이 확보되어야 하며, 추가적으로 성과물이 실용화, 사업화, 상용화가 될 수 있도록 성과 확산 프로그램 사업이 필요하다고 판단된다.

• Toxicological Research
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• 제26권4호
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• pp.285-291
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• 2010

Recently, reproductive and neurobehavioral effects of bisphenol A (BPA) have been documented, and thus a review was requested for BPA management direction by the government. Therefore, this study was performed to establish a Korean tolerable daily intake (TDI) for BPA. An expert committee, consisting of specialists in fields such as toxicology, medicine, pharmacology, and statistics, was asked to evaluate BPA health based guidance values (HbGVs). Although many toxicological studies were reviewed to select a point of departure (POD) for TDI, rat and mouse reproductive studies by Tyl et al. (2002, 2006), which were performed according to GLP standards and OECD guidelines, were selected. This POD was the lowest value determined from the most sensitive toxicological test. The POD, a NOAEL of 5 mg/kg bw/day, was selected based on its systemic toxicity as critical effects. An uncertainty factor of 100 including interspecies and intraspecies differences was applied to calculate the TDI. According to the evaluation results, a TDI of BPA for Korean was suggested at 0.05 mg/kg bw/day. In addition, the BPA exposure level based on food consumption by the Korean population was estimated as 1.509 ${\mu}g/kg$ bw/day, and the HI was evaluated at 0.03 when the TDI of 0.05 mg/kg bw/day was applied. This HI value of 0.03 indicated that hazardous effects would not be expected from BPA oral exposures. Although highly uncertain, further studies on low dose neurobehavioral effects of BPA should be performed. In addition, it is recommended that the 'as low as reasonably achievable' (ALARA) principle be applied for BPA exposure from food packaging materials in newborn infants and children.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2015년도 학술발표회
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• pp.427-427
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• 2015

The storm water management and drainage relation are the key variable that plays a vital role on hydrological design and risk analysis. These require knowledge about spatial variability over a specified area. Generally, design rainfall values are expressed from the fixed point rainfall, which is depth at a specific location. Concurrently, determine the areal rainfall amount is also very important. Therefore, a spatial rainfall interpolation (point rainfall converting to areal rainfall) can be solved by areal reduction factor (ARF) estimation. In mainland of South Korea, for dam design and its operation, public safety, other surface water projects concerned about ARF for extreme hydrological events. In spite of the long term average rainfall (2,061 mm) and increasing extreme rainfall events, ARF estimation is also essential for Jeju Island's water control structures. To meet up this purpose, five fixed rainfall stations of automatic weather stations (AWS) near the "Hancheon Stream Watershed" area has been considered and more than 50 years of high quality rainfall data have been analyzed for estimating design rainfall. The relationship approach for the 24 hour design storm is assessed based on ARF. Furthermore, this presentation will provide an outline of ARF standards that can be used to assist the decision makers and water resources engineers for other streams of Jeju Island.

• 한국수산과학회지
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• 제45권5호
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• pp.414-422
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• 2012

This study evaluated the effect of the inland pollution sources on the bacteriological water quality in Narodo area after rainfall events. Following 16 mm of rainfall, the water discharged from Dohwa Stream and contaminants from Balpo village had a very limited effect on bacteriological water quality in adjacent area and the affected area did not extend to the designated area. In comparion, after 33 mm of rainfall, the density of fecal coliforms at stations located in the mouth of Dohwa stream and the discharg point of contamination sources located in Balpo village were lower than after 16 mm of rainfall. These results were obtained during an extreme high tide near the coast the contaminants discharged from Dohwa stream and Balpo village. Therefore, it is necessary to conduct a detailed survey to examine the dffects of tides on the diffusion characteristics of the contaminants discharged from Dohwa stream and Balpo village in order to manage of Narodo area efficiently.

• 한국식품위생안전성학회지
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• 제25권2호
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• pp.180-184
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• 2010

본 연구는 식품안전 사건에 따른 소비자들의 구매행동 변화를 조사할 목적으로 2008년 발생한 멜라민사건을 예로 하여, 사건 전후의 주부들의 의식 및 행동 변화를 조사하기 위하여 2009년 3월 전라북도 군산지역에 거주하고 있는 주부 565명을 대상으로 설문조사를 실시하였다. 그 결과 우리나라 식품안전 수준에 대해서 52.3%가 불만족스러워 하는 것으로 나타났으며, 멜라민 사건 발생 후 어느 정도의 시간이 경과하였지만 조사대상자의 74.6%는 여전히 멜라민을 독성이 높은 물질로 인식하고 있는 것으로 나타났다. 멜라민 관련식품의 구매수준을 5점 척도에 의해, 사건 발생 전, 발생기간, 사건 종료 후(즉, 조사시점)의 수준을 분석한 결과, 각각 $2.47{\pm}0.97$, $1.80{\pm}0.92$, $1.62{\pm}0.92$(p<0.001)로, 사건발생 후 어느 정도의 시간이 경과하였음에도 구매수준은 더욱 낮아 진 것으로 나타났다. 독성 인식수준에 따른 구매수준에 변화에 있어서는 독성수준이 낮다고 인식하고 있는 사람은 관련제품 구매에 큰 변화가 없었으나, 높다고 인식하고 있는 사람은 구매수준에 있어 더 많은 감소를 나타냈다(p<0.05). 식품안전인식 수준에 따른 구매수준에 변화에 있어서도 국내 식품안전수준이 안전하다고 인식하고 있는 사람은 여전히 관련제품의 구매에 큰 변화가 없는 것으로 나타났다(p<0.05). 결론적으로 식품안전 수준에 대한 사전인식과 해당 유해물질에 대한 정확한 정보가 사건발생후의 식품구매행동에 많은 영향을 미친다고 볼 수 있으며, 소비자와의 체계적이고 다각적인 방향으로의 위해정보교류의 필요성이 한층 커지고 있다고 볼 수 있다.

• 한국안전학회지
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• 제33권1호
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• pp.103-108
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• 2018

Since tower cranes are susceptible to wind loads, the operation of the tower crane should be ceased when it exposed to a strong wind. For this reason, even in Korea, the operation limit for wind loading on the tower crane is regulated by a law. Recently the Korean law in which provided the wind speed limit to cease the tower crane operation has been revised from "instantaneous wind speed of 20 m/s" to "instantaneous wind speed of 15 m/s". Although this revision is expected to reduce safety risks in tower crane operation, some field operators still insist to lower the wind speed limit. However, in many countries "wind speed of 20 m/s" is normally used as the maximum in-service wind speed for tower cranes. Therefore, the investigation of the proper wind speed for regulation would be helpful to secure the safety of the tower crane operation under windy condition. In this study the validity of the revised wind speed limit is investigated with the surveys targeted to both tower crane practitioners and parties of concerned in construction companies, in which various questions was provided for a suitable wind speed limit and the answers were analyzed. The results showed that the revised wind speed limit is acceptable to tower crane practitioners as well as the parties of concerned in construction companies and is satisfying the structural stability requirement for in-service state tower crane. Therefore, it can be concluded that the revised wind speed limit is valid in humanly safety point of view.

• 한국항해항만학회지
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• 제26권1호
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• pp.112-119
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• 2002

80,000 G/T급 크루즈선이 입항할 수 있는 터미널을 계획하고 있는 제주신항에 대하여 자연 ·환경 조건 및 방파제 등의 구조물 등을 고려하여 선박조종시뮬레이션을 실시하여 입 ·출항 및 접 이안의 안전성을 평가하고자 한다. 안전성 평가는 항로경계의 침범여부, 구조물과의 최근접거리, 선박조종자의 주관적 평가를 통계적으로 해석하는 방법을 이용하였다.

• 한국안전학회지
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• 제31권2호
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• pp.18-25
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• 2016

The incandescent lamp is an electric light fixture with a tungsten filament heated to a high temperature, by passing an electric current through it, until it glows with visible light. The hot filament is protected from oxidation with a glass bulb that is filled with inert gas. The incandescent lamp has fire risk when combustible materials are close to its glass bulb. Because its lamp has the property which converts 90~95 percents of the electric power to heat energy. 2015 national fire statistics show that fires caused by lighting fixtures were 652 cases, and incandescent lamps(44 cases) and halogen lamps(53 cases) accounted for 15 percents in those of high heating light fixtures. Since incandescent lamp fires account for about 45 percents in the high heating light fixture, we could not overlook the fire risks by the incandescent lamp. Although many studies related with those have been conducted, incandescent lamp fires are continuously occurred. This study was carried out to study the fire risk of ignition of wood due to radiant heat of incandescent lamp. Radiant heat flux of the incandescent lamp was predicted by applying point source model, and critical distance for ignition of wood was calculated by applying integral model. The results from this study could applied to fire prevention activities related to light bulb, and it could be used in fire cause investigations related to radiant heat of incandescent lamp.

• Safety and Health at Work
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• 제4권1호
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• pp.52-62
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• 2013

Objectives: To investigate the association between psychological distress and obesity among law enforcement officers (LEOs) in the United States. Methods: Self-reported data on psychological distress based on six key questions were obtained from LEOs who participated in the National Health Interview Survey (2004-2010). We used Prochaska's cut-point of a Kessler 6 score ${\geq}5$ for moderate/high mental distress in our analysis. Mean levels of body mass index (BMI) were compared across three levels of psychological distress. Results: The average age of LEOs (n = 929) was 39.3 years; 25% were female. Overall, 8.1% of LEOs had moderate or high psychological distress; 37.5% were obese (BMI ${\geq}30$). Mean BMI increased with increasing psychological distress (no distress, BMI = $27.2kg/m^2$; mild distress, $27.6kg/m^2$; and moderate/high distress, $33.1kg/m^2$; p = 0.016) after adjustment for age, race, income, and education level among female officers only. Physical activity modified the association between psychological distress and BMI but only among male LEOs (interaction p = 0.002). Among male LEOs reporting low physical activity, psychological distress was positively associated with BMI ($30.3kg/m^2$ for no distress, 30.7 for mild distress, 31.8 for moderate/high distress; p = 0.179) after adjustment, but not significantly. This association was not significant among males reporting high physical activity. Conclusion: Mean BMI significantly increased as psychological distress increased among female LEOs. A longitudinal study design may reveal the directionality of this association as well as the potential role that physical activity might play in this association.

• 수산해양기술연구
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• 제43권2호
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• pp.149-159
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• 2007

Marine casualties of fishing vessels were analyzed to reduce the sacrifice of human life using data of the Korean Maritime Safety Tribunal from 1995 to 2004 in Korea. The occurred number of fishing vessel casualties were likely to be higher portion than non-fishing vessels, but the occurring ratio of fishing vessel casualties were marked 2.96 times lower than that of non-fishing vessel casualties. The occurring ratios of bigger fishing vessel casualties were higher than smaller ones. Most marine casualties were resulted from the human factors such as poor watchkeeping, negligent action for engine and etc. The trend of marine casualties showed that the machinery damage hold the first and collision accidents took the second, but on a point of cause of them, operating errors took first and poor handling or inspection of machinery held the second place. Because those two casualties took major portion, and very important problems for safety of fishing vessels, so we ought to try to reduce the factors before everything else. In addition, since collision, sinking and capsizing in marine casualties have led to death, missing and injury of lives, it is necessary for navigation operators to take more educations and training intended to reduce the marine casualties systematically and continuously.