• 한국물환경학회지
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• 제27권6호
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• pp.804-812
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• 2011

To prevent the overflow of various harmful chemicals, it is necessary to modify the chemical management system with an expansion to institutionally regulated substances. This modification should be preceded by selection of the priority chemicals, with a diverse chemical ranking system (CRS) applied to select the chemicals in developed countries. In Korea, a systematic CRS was used in a project related to soil and groundwater, however, it is inadequate to compare soil and groundwater CRS to that of surfacewater. In this study, a priority chemical ranking system for surfacewater was proposed through the analysis of international and domestic CRS cases. This was then applied to 161 chemicals to derive the priority list of harmful chemicals. As a result, Chemical RAnking of surFacewater polluTants (CRAFT) is presented for the protection of human health and the aquatic ecosystem from surfacewater pollutants. The components of CRAFT are the human health toxicity, aquatic ecosystem toxicity and reliability assessment factors. Three lists were derived from the 161 priority harmful chemicals for the protection of human health, aquatic ecosystem or both. It is expected that this result can be useful to prioritize harmful chemicals for the protection of human health and the aquatic ecosystem from Korean surfacewater.

• 한국학교ㆍ지역보건교육학회지
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• 제22권4호
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• pp.49-60
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• 2021

Objectives: Laboratories have various latent physical, chemical, biological, and ergonomical factors according to the diversification and fusion of research and development activities. This study aims to investigate the chemical exposure concentrations of college laboratories and evaluate their health risks, and use them as basic data to promote the health of college students. Methods: The sampling and analysis of harmful chemicals in the air in laboratories were performed using Method 1500 of the U.S. National Institute for Occupational Safety and Health (NIOSH)의 Method 1500. The harmful chemicals in the laboratories were divided into carcinogenic and non-carcinogenic chemicals. Risk assessment was performed using the cancer risk (CR) for carcinogenic chemicals and using the hazard index (HI) for non-carcinogenic chemicals. Results: The harmful chemicals in college laboratories consisted of acetone, diethyl ether, methylene chloride, n-hexane, ethyl acetate, chloroform, tetrahydrofuran, toluene, and xylenes. They showed the highest concentrations in laboratories A (acetone 0.001~2.34ppm), B (chloroform 0.95~6.35ppm), C (diethyl ether 0.08~8.68ppm), and D (acetone 0.07~14.96ppm). The risk assessment result for non-carcinogenic chemicals showed that the HI of methylene chloride was 2.052 for men and 2.333 for women, the HI of N-hexane was 4.442 for men and 5.05 for women. Thus, the HI values were higher than 1. The risk of carcinogenic chemicals is determined by an excess cancer risk (ECR) value of 1.0×10^-5, which means that one in 100,000 people has a cancer risk. The ECRs of chloroform exceeded 1.0×10^-5 for both men and women, indicating the possibility of cancer risk. Conclusion: College laboratories showed the possibility of non-carcinogenic health risks for methylene chloride, n-hexane, tetrahydrofuran (THF), toluene, and xylenes, and carcinogenic health risks for chloroform, methylene chloride. However, this study used the maximum values of measurements to determine the worst case, and assumed that the subjects were exposed to the corresponding concentrations continuously for 8 hours per day for 300 days per year. In consideration of the nature of laboratory environment in which people are intermittently exposed, rather than continuously, to the chemicals, the results of this study has an element of overestimation.

• 설비공학논문집
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• 제22권5호
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• pp.304-313
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• 2010

During recent years, various studies have demonstrated that indoor chemical pollution causes health problem and also negatively affect the performance of work by occupants. Building materials have been concerned as indoor chemical sources. Some of guidelines and certification system has been developed and resulted as dramatic decrease of harmful indoor chemicals such as formaldehyde and volatile organic compounds. Also, Home furniture and electrical devices has been concerned as one the primary influence the indoor chemical concentration in residential spaces. It is found that various kinds of electric home appliances have a significant source of chemical emission in indoor environments. In this study, the methodologies of detecting harmful chemicals from various kinds of products has been developed with large chamber measurement system and suggest some of the evaluation method for the chemicals from the home appliances as TV sets.

• 한국식품영양과학회지
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• 제42권10호
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• pp.1701-1706
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• 2013

식품은 인간의 건강과 생존 유지를 위해 매우 중요한 역할을 하고 있으며, 건전하고 안전한 식품을 섭취하는 것은 인간의 삶에 무엇보다도 중요하다. 최근에는 기후변화 등 식품 안전과 관련한 주위 환경이 더욱 열악해지고 있는 실정이다. 정부차원에서도 다양한 방법으로 식품안전에 관한 소비자 교육 홍보 방법을 개발하고, 홈페이지, 리플렛 등 교육 자료를 통해 유해물질에 대한 정보를 제공하고 있다. 본 연구에서는 국내외 관련 정보 분석을 통해 상대적으로 인지도가 낮은 제조가공 과정 중 생성물질과 환경유래오염물질을 대상물질로 선정하였고, 이에 대한 교육 콘텐츠를 개발하였다. 이에 대해 서울시에 거주하는 여대생 120명을 대상으로 인식의 변화, 태도의 변화, 행동의 변화 등 교육효과를 확인하였다. 조사결과, 식품 중 유해물질에 대한 인식도는 교육 전에 비해 교육 후 98.8% 이상으로 증가함을 확인하였다. 건강을 해칠 수 있다는 불안감에 대해서는 교육 전 77.8%에서 교육후에는 막연한 불안감이 52.8%로 약 25.0% 포인트 감소하였다. 정부에서 식품 중 유해물질에 대한 저감화 방안을 홍보할 때 어떤 행동을 취할 것인 지를 질문했을 때 교육 전에 는 적극적으로 실천할 것이라고 응답한 경우가 12.3%, 노력한다는 응답자가 73.5%이었으나, 교육 후에는 56.1%가 적극적으로 실천할 것이라고 응답함에 따라, 좀 더 적극적으로 참여하겠다는 태도의 변화를 이끌어 냈다. 식품 중 유해물질 정보를 알았을 때의 소비 행동 조사결과, 관련 정보에 대해 자세히 알아보고 결정한다는 응답자가 교육 전 49.6%에서 교육 후에는 77.4%로 27.8% 포인트 증가하였고, 관련 식품은 무조건 구매하지 않겠다고 응답한 경우는 교육 전 45.4%에서 교육 후 20.9%로 24.5% 포인트 감소하였다. 이와 같이 유해물질에 대한 설득력 있는 정보제공을 통해 막연한 불안감을 해소할 수 있을 것이며, 앞으로 소비자와의 식품안전 소통채널 확대를 위해서는 지속적으로 소비자 대상 안전정보 제공을 위한 콘텐츠 개발 및 교육 홍보를 강화해 나가야 할 것이다.

• 디지털융복합연구
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• 제16권4호
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• pp.185-194
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• 2018

본 연구는 치과위생사들의 치과재료에 대한 물질안전보건자료(Material Safety Data Sheet, MSDS)의 인식도와 유해화학물질 취급 시 안전 실태에 대해 파악하고자 실시하였다. 연구는 광주광역시에 근무 중인 치과위생사 250명을 대상으로 2015년 1월부터 2월까지 조사하였고, 235명의 자료를 최종분석 대상으로 하였다. 그 결과 치과재료에 대한 MSDS 인지 정도는 연령이 높을수록 인지도가 높게 나왔으며(p<0.05), 치과병원에 근무하는 치과위생사(p<0.001)에서 유의하게 높았다. 치과재료의 유해화학물질위해성에 대한 인식도에 영향을 미치는 요인은 MSDS인식도(p<0.001)이었고, 유해화학물질 노출 시 응급처치에 대한 인식도에 영향을 미치는 요인은 유해위험성 교육을 받은 경험(p<0.001)으로 나타났다. 따라서 치과위생사들의 치과재료에 대한 MSDS 인식도와 유해화학물질 취급 시 안전 실태에 대해 파악함으로써 유해화학물질 취급 시 안전에 대한 올바른 인식 확립과 이로 인한 사고를 예방하기 위한 교육 프로그램 개발에 기초자료를 제공하고자 한다.

• 대한안전경영과학회지
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• 제15권3호
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• pp.37-50
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• 2013

It is not an exaggeration to say that modern chemicals take a leading place in our life, and people live with the chemicals, having a huge impact on their daily life. The chemical industry in South Korea, ranked seventh in the world, is one of the key industries that are forming greater part of Korean economy. The actual state of the chemical industries, however, is that over 14 tons of hazardous chemicals are being discharged annually and threaten people's lives with a lack of knowledge of its potential danger. In this way, not only beneficial to us, some of these substances, All chemicals, but also present a threat fundamentally our living environment to hazards to human health and the environment, accidents such chemicals, unlike accidents general understanding the scale of damage and propagation velocity has a complex very difficult risk profile, that can occur during deployment of an accident type is also very diverse. Is the actual situation of public concern against harmful chemicals management's is amplified by the chemical accident in the wake such accidents, government and corporate and reactive system and management system prior to the chemical accident the need for communication to exchange ideas with each other between residents, providing information is important. Therefore, the government departments and corporations, which manage variety of chemicals, ought to contribute toward a development of national security by rigid control over the Hazardous chemicals.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제27권4호
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• pp.267-277
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• 2016

Attention-deficit hyperactivity disorder (ADHD) is a common, childhood-onset, neuropsychiatric disorder with an estimated prevalence of 2-7.6% in Korean children. Although the etiology of ADHD is not well understood, evidence from genetic factor and environmental factor studies suggests that ADHD results from a gene environmental interaction. In the current study, we reviewed the evidence for and clinical implications of the hypothetical roles of organophosphate pesticides, organochlorine pesticides, polychlorinated biphenyls, phthalate, bisphenol, polyfluoroalkyl chemicals, polycyclic aromatic hydrocarbons, mercury, lead, arsenic, cadmium, manganese, tobacco, alcohol as harmful risk factors in the development of ADHD.

• 센서학회지
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• 제32권5호
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• pp.259-266
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• 2023

The use of various adulterants and harmful chemicals is rapidly increasing in various sectors such as agriculture, food, and pharmaceuticals, and they are also present in our surroundings in the form of pollutants. The regular and repeated intake of harmful chemicals often adversely affects human health. The prolonged exposure of living beings to such adverse components can lead to severe health complications. To avoid the unlimited utilization of these chemical components, a sensing technology that is sensitive and reliable for low-concentration detection is beneficial. Surface-enhanced Raman spectroscopy (SERS) is a powerful method for identifying low-range concentrations of analytes, leading to great applications in molecular identification, including various diagnostic biomarkers. SERS in chemical, gas, and biological sensors can be an excellent approach in the sensing world to achieve rapid and multiple-analyte detection, leading to a new and efficient approach in healthcare monitoring.

• 대한치과기공학회지
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• 제32권3호
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• pp.221-232
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• 2010

Purpose: It is necessary for dental technicians exposed to hazardous chemicals in the dental laboratories to be informed of the various harmful effects of chemicals for their health and safety. The purposes of this study was to investigate the actual condition of the use of MSDS in dental laboratories and the recognition rate of MSDS for dental technicians. Methods: 231 dental technicians who were self-written questionnaire. The results were analyzed by SPSS 12.0. The answers to the questionnaire underwent frequency analysis, chi-square test and correlation analysis were performed to investigate association between health effects and recognition rate of chemical information. Results: The results from the effects of damage caused by chemicals 60.7%, and when it was less than 2 years working experience 47.6%. Currently any dental laboratories(rooms) was not furnished MSDS(0%) and even similar data furnishing rate was only 17.3%. Answer rate of 'Do not know about MSDS' was 73.6%. In addition to, education in the types and characteristics of chemicals(74.5%) does not receive all the higher education. For the question of 'To prevent human risks and accidents, is to provide chemical information needed', the answer rate of 'needed' was 87.2%. Moreover, the answer rate of 'To provide chemical information that could prevent accidents' was 76.6%. Therefore it was found that dental technicians need to be provided for chemical information. In addition, they wanted to get education related to chemicals used in the workplace(80.5%), and 90.9% was answered that they was willing to keep MSDS in they workplace. Conclusion: This study investigated the current dental laboratories(rooms) and the MSDS for the awareness and recognition of workers was very low, education was not being conducted properly. The dental laboratories(rooms) of the compact characteristics of the MSDS was not reasonably accessible and the furnishing location, dental laboratories(rooms) for the real item was needed for improvement. MSDS for dental technicians through education and promotion of information about chemicals and chemicals was to prevent health problems caused by the MSDS that will raise awareness of the necessity.

• 한국작물학회지
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• 제40권4호
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• pp.487-493
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• 1995

본 실험은 콩나물 재배과정 중에 일어나는 부패문제를 해결하기 위하여 사용이 허가된 산성 식품 첨가제들을 대상으로 그 이용 가능성을 찾아보고자 수행되었다. 다소 노화된 은하콩을 재료로 콩나물 배축의 부패에 관여하는 균(부패균)을 순수 분리하여 그 특성을 조사하였고, propionic acid 등 8가지 약제처리가 부패균의 증식 억제효과를 인왕배지상에서 검토하였다. 또한 1% 이하의 약액처리가 콩나물 발아와 유묘생장에 미치는 영향을 조사하여 약해유발의 가능성도 검토하였으며 그 결과들을 요약하면 다음과 같다. 1. 부패균으로 확인된 3종류의 균계를 대상으로 Gram stain등 8가지 미생물학적 검정을 통하여 분석한 결과 상호 약간의 특성 차이는 있었으나 Pseudomonas속의 균계로 판단되었으며, 분리된 곰팡이류 중에는 부패균이 없었다. 2. 5% 이상의 농도에서는 공시약제 중 sodium hypochlorite의 부패균 증식억제 효과가 가장 컸으나 발아를 극심하게 저해하여 실용성이 없다고 판단되었다. 3. Propionic acid, acetic acid, calcium propionate, sodium propionate등의 약제 효과가 큰 것으로 나타났는데 propionic acid와 acetic acid의 효과가 상대적으로 더 뚜렷하였다. 4. Propionic acid, acetic acd, calcium propionate, sodium propionate 등의 선발된 4가지 약제는 1.0% 및 그 이하의 농도에서도 다소의 부패균 증식억제 효과가 나타나 부패경감제로서의 충분한 이용 가능성을 보였다. 5. 1%이하의 용액에 콩종자를 침지처리 하였을 때 무처리에 비해 선발된 4가지 약제처리에서 모두 발아율, 초기생육 및 비정상발아 개체율에서 차이를 나타내지 않아 약해는 문제시 되지 않을 것으로 판단되었다.