• 한국위험물학회지
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• 제6권2호
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• pp.7-12
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• 2018

Hydrochloric acid is a highly corrosive toxic substance and requires proper safety to minimize damage in case of leakage. Among the various risk-reduction facilities, the dike is a typical safety facility installed to protect the surrounding buildings and facilities by preventing the external spread of hazardous materials from the storage tank. In this study, the KORA program was used to assume leakage accident of hydrochloric acid storage tank. At this time, the extent of the damage effects of ERPG-2 were assessed for each of the three separation distance between the storage tank and the dike. The study found that the smaller the separation distance between the dike and the storage tank, the smaller the extent of damage caused by hydrochloric acid leakage, and the greater the impact of indoor conditions under the same conditions. Through this process, we are going to assist in selecting locations and installing facilities for new and existing businesses.

• 한국산업보건학회지
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• 제17권1호
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• pp.63-70
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• 2007

This study investigated the current management staus of chemical substance information on Material Safety Data Sheets(MSDS) and Chemical Information Cards(CIC) provided by Korea Occupational Safety & Health Agency(KOSHA) and also researched the kind and the characteristics of chemical substance information provided in other organizations. MSDS DB in Korean provided on KOSHANET(which is Kosha website) is 50,802 in total, among whom are single chemical substances with 31,870 kinds(18,932%) and are mixed chemical substances with 31,870 kinds(62.7%). The number of visiting MSDS DB on KOSHANET for the search of chemicals was 2,049,806. The number has increased each year. The CIC provided for workplaces is all 542 kinds : 14 harmful substances subject to permission, 168 harmful substances subject to management, 360 KOEL(Korean Occupational Exposure Limits) establishment substances. MSDS internationally provided by organizations producing MSDS DB was written with 16 sections, which is suitable for the writing basis of American Standards Institute(ANSI) and International Organization for Standardization(ISO) and provided chemical substance information on more than 100,000 kinds in most organizations.

• 한국안전학회지
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• 제25권2호
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• pp.65-70
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• 2010

Interest to the RTLS is increasing recently, and the RTLS is used in various fields. It is one of applications for locating and tracking using RFID tags which are attached to something like container, pallet, or all thing. In this study, a RTLS system was developed for efficient safe management in chemical industry. This system could manage dangerous substance and a personal history regarding entry. Detailed results of this study are as follows: (1) Through RTLS entry management system which is developed this study, the events along a movement of dangerous substances and the person in charge could be grasped and recorded. (2) A user, goods and a warehouse could be managed and monitored efficiently as using the developed RTLS history system. (3) RTLS system will contribute to efficient safety management of the chemical industry. Besides, RTLS system might be applied to the other industries like shipbuilding and car industry.

• 한국산업보건학회지
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• 제19권2호
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• pp.139-152
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• 2009

According to the third study on the distribution of chemical substances carried out by the Department of Environment in 2006, there were a total of 900 chemical substances whose respective annual usage amount exceeded 1,000 tons and, among them, 90 substances belonged to the 168 hazardous substances requiring management(53.6%). The work-related illnesses caused by hazardous substances requiring management in Korea between $1992{\sim}2005$ can be classified into four groups depending on the type of the chemical substances. These four groups are 23 organic substances including benzene, 12 metals including lead, 3 acids and bases including hydrogen chloride, and 6 gaseous substances including carbon monoxide. These hazardous substances requiring management were again classified depending on the threshold limit values. The chemicals whose TLV was lower than or equal to 0.005 ppm included 4 organic substances including methylene bisphenyl isocyanate and toluene-2,4-diisocyanate (TDI). The chemicals whose TLV was larger than 51 ppm included 22 organic substances including diethyl ether and 1,2-dichloroethylene. When we classified these hazardous substances requiring management according to the categories of GHS health hazards, we found that isobutyl acetate and magnesium oxide didn't belong to the 13 health hazard categories. Among the substances whose TLV is set and whose annual usage amount is more than 0.1 million ton, we recommended 12 chemical species including 4,4'-Methylenedianiline as new hazardous substances requiring management. All the recommended substances were found to be hazardous when we classified their health hazards.

• 한국토양비료학회지
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• 제48권4호
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• pp.312-317
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• 2015

This study was conducted to evaluate effects of diethylene triamine penta acetic acid (DTPA) treatment on growth of red pepper and nutrient availability to salt accumulated soil in the plastic film house. The treatments were no application (Control), chemical fertilizers (NPK), DTPA (0.06, 0.13, and 0.19 mM) and the half of chemical fertilizers (NPK) with DTPA 0.06 mM. Fruit yield of red pepper showed no significant difference between the treatments (control, NPK, DTPA 0.06 mM, 0.13 mM, except for DTPA 0.19 mM. Red peppers were killed by DTPA 0.19 mM treatment because the high concentration of DTPA was toxic to crop. However, dry mass (stem and leave) and nutrient uptake of red pepper in DTPA 0.06 mM treatment increased significantly compared with those of control. In particular, nutrient uptake of red pepper in DTPA 0.06 mM treatment increased in the order of Fe, Mn, and Zn > Ca and Mg > K, as the magnitude of the stability constants of DTPA. Thus the application of DTPA 0.06 mM was the most effective for the alleviation of nutrient accumulation in the plastic film house soils.

• 한국안전학회지
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• 제31권1호
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• pp.111-117
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• 2016

Natural disasters can cause major accidents in chemical facilities where they can lead to the release of hazardous materials which in turn can result in fires, explosions or toxic dispersion. Technological disasters triggered by natural disasters are referred to as NaTech(Natural Disaster Triggered Technological Disaster). These trends increase the probability of catastrophic future disasters and the potential for mass human exposure to hazardous materials released during disasters. In the present study, we proposed some methods for effective disaster management by conducting case study of major NaTech. First, establishing information sharing system of chemical accident for stakeholders and improving disaster manuals and standards of central and local government and co-operation support system. Second, activating information service of emergency planning and community right to know. Third, improving the integrated chemical accident database including NaTech accidents.

• 농업과학연구
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• 제35권1호
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• pp.53-67
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• 2008

The principle goal of environmentally-friendly agriculture is to maintain and conserve water and agriculture environment including drinking water resources by properly using agricultural materials such as agricultural chemicals, chemical fertilizers, and other agricultural materials according to act 19 of foster law of environmentally-friendly agriculture. To achieve these goals, we have to establish Integrated Nutrient Management(INM) and Integrated Pesticide Management(IPM) which are most important core technologies for environmentally-friendly rice cultivation. However, there are lack of criteria and technology for evaluation category according to soil management and its soil classes to practice an environmentally-friendly agriculture. Therefore, we should eatablish the standards to produce the safe agricultural products based on the soil physical and chemical characteristics which are basic properties of soil to accomplish the principle aims of environmentally-friendly agriculture.

• 대한안전경영과학회지
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• 제10권4호
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• pp.11-20
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• 2008

The present management of the domestic and international advanced enterprises is transferring the systems and the regulations to the prevention system management. Expecially, KOSHA (Korea Occupational Safety & Health Agency) in Korea has supported to set up the OSHMS (Occupational Safety & Health Management System) by KOSHA 18001 since 1997. But small & medium enterprises (SMS) have many difficulties to set up the OSHMS because of limited natural and human resources. Therefore, this study is developed and proposed the certification standard of an OSHMS for SMS based on the case study on advanced countries, actual conditions of SMS in Korea, and opinion of specialists.

• Bulletin of the Korean Chemical Society
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• 제30권12호
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• pp.3016-3020
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• 2009

The chemical bond parameters of Y-123, Eu-123, Pr-123 and Gd-123 compounds have calculated using the chemical bond theory of complex crystals. Their hardness have been predicted by the chemical bond definition of hardness. The calculated results indicate that the Ba-O and RE-O types of bond have a lower covalent character and the Cu-O types of bond have greater covalency. The hardness values increase as the unit cell volume of the rare earth superconductor structures decrease.

• 한국가스학회지
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• 제15권6호
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• pp.8-13
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• 2011

유해 위험 요인이 있는 시설물의 안전에 대한 의식을 고취시키기 위해서는 현장 종사자뿐만 아니라 관리자와 경영자도 해당 시설물에 대한 모니터링이 가능해야 한다. 그러나 우리나라에 있는 대부분의 CNG충전소는 로컬 형식의 모니터링 시스템이 사용되고 있으며 이러한 점을 고려하여 웹상에서 운용할 수 있는 충전소 관리 시스템을 개발 하였다. 개발된 시스템은 U-GSMS(Ubiquitous Gas Safety Management System)라고 명명 하였다. U-GSMS는 크게 프로그램 부분과 하드웨어 부분으로 나눌 수 있다. 프로그램 부분은 안전과 운영을 관리 할 수 있는 시스템으로 구성하였으며 하드웨어 부분은 가스시설물에 적용할 수 있는 센서, 센서간의 통신 그리고 센서와 기기 간의 통신을 위하여 USN(Ubiquitous Sensor Network)기술을 적용하여 무선 통신 시스템을 구축하였다. 이 논문에서는 주로 U-GSMS 중 프로그램에 관하여 기술하였다.