• Title/Summary/Keyword: 화학

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A Study on Improvement of Legal System for Harmful Chemical Substance Response Management System (유해화학물질 대응시스템 적용을 위한 제도 개선 연구)

  • Oak, Young-Suk;Lee, Young-Sub
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.4
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    • pp.216-223
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    • 2017
  • Chemicals are an indispensable element of modern society to the extent that more than 15 million species are commercially available worldwide. However, among them are chemicals whose toxicityposes a threat to public health and the environment, as illustrated by past cases of chemical accidents, which revealed their danger to human life. Chemical accidents can spread and cause huge damage in a short time because of their characteristics. Therefore, it is important to do as much as possible to prevent them in advance and to respond promptly after an accident. The legal system pertaining to domestic chemical substances is the "Toxic Chemical Control Act", which is made up of the "Act on the Registration and Evaluation of Chemicals" and the "Chemical Control Act" since 2015. Under this law, the Comprehensive Chemical Information System and Chemical Substance Data Processing system were established and are still operating;however, chemical accidents are still occurring. These systems are comprehensive information systems aimed at providing chemical information rather than acting as chemical response systems, which has limited the effectiveness of accident response. This study is intended to analyze the information management systems, response management systems and the basis of chemical substance management support for hazardous chemicals and suggest ways to improve the legal system for developing and operating chemical response systemswithin a municipality.

The Correlation between Concepts on Chemical Reaction Rates and Concepts on Chemical Equilibrium in High School Students (고등학생들의 화학반응속도 개념과 화학평형 개념간의 상관관계)

  • Park, Guk-Tae;Kim, Gyeong-Su;Park, Gwang-Seo;Kim, Eun-Suk;Kim, Dong-Jin
    • Journal of the Korean Chemical Society
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    • v.50 no.3
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    • pp.247-255
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    • 2006
  • The purpose of this study was to investigate the correlation between concepts on chemical reaction rates and concepts on chemical equilibrium in high school students. The subjects of the investigation consisted of 120 third grade students attending high school in K city of Kyunggi province. For this study, questionnaire relevant to the subject of chemical reaction rates and chemical equilibrium was developed and the answers were analyzed. As a result of the study, a large percentage of high school students answered questions on reaction rates correctly, but only a small percentage of the students could give explanations. Many high school students answered questions on the rates of forward reactions correctly, but not the questions on the rates of reverse reactions. For the concepts on chemical equilibrium, many high school students gave correct answers when faced with equilibrium questions that only required the understanding of one side of the reaction. But the students could not answer the questions requiring understanding of both forward and reverse reactions as well. Overall, there was a little high correlation between concepts on chemical reaction rates and concepts on chemical equilibrium in high school students. Especially, high school students with little understanding of reverse reaction rates did not understand that chemical equilibrium is a dynamic equilibrium. Also, high school students with little understanding of the collision mechanism regarding chemical reaction rates did not understand the effect of concentration and catalyst factors on chemical equilibrium. And the correlation between concepts on chemical reaction rates and concepts on chemical equilibrium related to concentration and catalyst factors was low. In conclusion, the formation of scientific concepts on chemical reactions rates can decrease misconceptions on chemical equilibrium. Also the teaching-learning method limited to one side of a reaction can cause difficulty in forming the concepts on chemical dynamic equilibrium. Therefore, the development of a teaching-learning method which covers both the forward and reverse reactions can be effective in helping students form the concepts on chemical equilibrium.

International New Chemicals Notification Schemes (국내외 신규화학물질 신고제도)

  • 김지영
    • Environmental Analysis Health and Toxicology
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    • v.12 no.1_2
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    • pp.1-11
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    • 1997
  • 1. 서 론 : 1960년대말 일본에서 PCB로 인해 야기되는 환경오염이 문제가 되어 다양한 목적으로 사용되는 화학물질로부터의 환경오염과 인간건강에 대한 유해성을 방지할 목적으로 자국내 최초로 수입 또는 제조되는 화학물질에 대해서는 사전에 신고를 하도록 하는 화학물질에 대해서는 사전에 신고를 하도록 하는 화학물질관리법이 1973년에 최초로 제정되었다.(생략)

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POLICY & ISSUES 기획특집_1 - 화학물질 사고 예방 및 대응 정책방향

  • Ryu, Pil-Mu
    • Bulletin of Korea Environmental Preservation Association
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    • pp.9-11
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    • 2013
  • 화학물질은 현대문명에 필수적이다. 산업용 원료, 신소재, 섬유, 의약품, 농약 등 화학물질의 사용용도는 광범위하고 그 유용성은 무궁무진하다. 하지만, 언제부터인가 화학물질 유해성(有害性)이라는 용어에 익숙해지고 있다. 화학물질은 분해에 장시간이 소요되어 인체 또는 환경에 잔류하고 장기적으로는 각종 질병을 일으키기도 한다.

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포장과 법률 - 유해화학물질 제조·사용시설 설치 및 관리에 관한 고시

  • (사)한국포장협회
    • The monthly packaging world
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    • pp.102-110
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    • 2019
  • 환경부 소속 화학물질안전원은 화학물질관리법(이하 화관법)이 일부 개정됨에 따라 유해화학물질 취급시설의 설치 및 관리에 필요한 세부사항에 관한 규정을 제정했다. 총 14조, 부칙 2조, 별표 1종으로 구성된 이번 고시는 취급시설의 기술기준과 세부기준이 포함되어 있다. 다음에 '유해화학물질 제조 사용시설 설치 및 관리에 관한 고시'의 상세한 내용을 살펴보도록 한다.

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Analysis of Preservice Chemistry Teachers' Modelling Ability and Perceptions in Science Writing for Audiences of General Chemistry Experiment Using Argument-based Modeling Strategy (논의-기반 모델링 전략을 이용한 일반화학실험에서 글쓰기 대상에 따른 예비화학교사들의 모델링 능력 및 모델링에 대한 인식 분석)

  • Cho, Hye Sook;Kim, HanYoung;Kang, Eugene;Nam, Jeonghee
    • Journal of the Korean Chemical Society
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    • v.63 no.6
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    • pp.459-472
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    • 2019
  • The purpose of this study was to investigate the effect of science writing for different audiences on preservice chemistry teachers' chemistry concept understanding and modeling ability in general chemistry experiment activities using Argument-based Modeling (AbM) strategy. And we also examined preservice chemistry teachers' perceptions of modeling in different audience groups. The participants of the study were 18 university students in the first grade of preservice chemistry teachers taking a general chemistry experiment course. They completed eleven topics of general chemistry experiment using argument-based modeling strategy. The understanding of chemistry concept was compared with the effect size of pre- and post-chemistry concept test scores. To find out modeling ability, we analyzed level of model by each preservice chemistry teacher. Analytical framework for the modeling ability was composed of three elements, explanation, representation, and communication. The questionnaire was conducted to check up on preservice chemistry teacher's recognition of modeling. The result of analyzing the effect of modeling for different audience on the understanding of chemistry concept and modeling ability, the preservice chemistry teachers' were found to be more effective when the level of audience was low. There was no difference in the recognition of modeling between the groups for audience. However, we could confirm that the responses of preservice chemistry teachers are changed in concrete when they have an experience in succession on modeling.

Analysis of the Causes of Decrease in the Number of Students Taking Chemistry I in the CSAT by Analyzing the Chemistry I Question in the CSAT and the Recognition Survey of Students and Teachers (대학수학능력시험 화학 I 문항 분석 및 학생과 교사의 인식 조사를 통한 화학 I 응시자 감소 원인 분석)

  • Kim, Hyunkyoung;Bae, Sungwoo;Park, Jongseok
    • Journal of the Korean Chemical Society
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    • v.61 no.6
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    • pp.378-387
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    • 2017
  • In this study, we analyzed the causes of decrease in the number of students taking Chemistry ? in the College Scholastics Ability Test (CSAT) by analyzing the adequacy of the Chemistry I question in the CSAT and the recognition survey of students and teachers about the Chemistry I choice. We analyzed some questions in Chemistry I of the CSAT from the year 2014 to 2016. The questions were analyzed to determine whether they were appropriate to the curriculum content, achievement standard, and achievement level. The target of the survey for perception was 452 senior high school students and 68 science teachers. The result of the study showed that the questions in Chemistry I are somewhat difficult compared to the depth and achievement level required by the curriculum, and it also requires mathematical thinking ability. Students recognized the mathematical thinking and complex mathematical skills are needed to solve problems in Chemistry I. Teachers also thought that the choice of Chemistry I is unfavorable in aspect of meeting the minimum academic ability standard, and accordingly, they did not actively recommend students to take Chemistry I. Moreover, most of the teachers recognized that it is necessary to improve the direction of writing questions for Chemistry I. Therefore, setting questions that can be solved using chemical knowledge, not mathematical ability need to be addressed.

Chemistry teachers' perceptions on aims, contents, and evaluations of the 7th Chemistry I Curriculum and realities of instruction in classrooms (제7차 화학 I 교육과정의 목표, 내용 및 평가에 대한 화학교사들의 인식 및 수업의 실제)

  • Kim, Hye-Young;Paik, Seoung-Hey
    • Journal of The Korean Association For Science Education
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    • v.29 no.6
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    • pp.653-665
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    • 2009
  • The purpose of this research is to estimate the chemistry teacher's perceptions of Chemistry I course based on the 7th national curriculum through actual class teaching situations and interviews and teaching guidance of an actual class through a lesson and an interview. For this research, four chemistry teachers who have had an experience teaching the chemistry I course were selected. As the results of the research show, chemistry teachers had the correct understanding of the purpose of the Chemistry I course, but they were teaching the concepts of Chemistry II . They thought the reason for the teaching was the national scholastic aptitude test. But according to analysis, the contents of the previous tests were hardly beyond the limit of Chemistry I course. For this research, the chemistry teachers looked for the purpose of Chemistry I course based on the 7th curriculum only at the superficial views, and the teacher's wrong understanding about the tests disturbed the revelation of the spirit of Chemistry I course of the 7th national curriculum.

Developing on MOE's Information System for providing Chemical Accident Emergency Information (화학사고 응급정보 제공을 위한 환경부의 정보시스템 구축)

  • Park, Choonhwa;Noh, Hyeran;Park, Yuonshin;Kim, Sungbum;Seok, Kwangseol;Choi, Kyunghee
    • Journal of the Society of Disaster Information
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    • v.8 no.2
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    • pp.178-187
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    • 2012
  • Owing to the increase of chemical usage, ordinary people are frequently exposed to chemicals and chemical products. Thus, demand on emergency response to chemical accidents is rapidly increasing. Also, as new chemicals continue to be introduced to the market, information system on chemicals need to be consistently updated. Under the circumstances, the MOE(Ministry of Environment) has established a comprehensive 24-hour web-based CEIS(Chemical accident Emergency response Information System) which contains more various material information for wider range of users from governmental organization to the general public.

Design of e-Science Gateway for Computational Chemistry (e-Science 기반 계산화학 교육환경(e-Chem) 설계)

  • Ahn, Bu-Young;Seo, Jeong-Hyun;Kim, Ji-Young;Cho, Kem-Won;Cha, Ji-Young
    • Proceedings of the Korean Information Science Society Conference
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    • pp.231-235
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    • 2010
  • 요즘 들어 컴퓨터 처리 능력의 향상에 따라 사이버인프라스트럭처(Cyberinfrastructure)를 이용하는 계산과학이 주목을 받고 있다. 그 중에서도 대용량 데이터의 복잡한 계산과 시뮬레이션을 동반하는 계산화학 연구 분야에서의 컴퓨터 활용은 매우 중요하다. 계산화학을 간단하게 설명하자면 컴퓨터를 이용한 계산을 통하여 이론 화학의 문제를 다루는 화학의 한 분야라고 말할 수 있다. 계산화학 분야의 연구를 위하여 고성능 컴퓨터와 데이터를 처리, 분석하는 계산화학 도구는 이론연구자 및 실험연구자 모두에게 있어 필수적인 요소이다. 더불어 계산화학 연구자간의 협업과 원격지에 있는 사이버인프라스트럭처 자원의 활용을 위해 e-Science 환경에서의 연구 및 교육 환경이 개발되어야 한다. 이에, 본 논문에서는 한국과학기술정보연구원(KISTI)이 보유 및 운영하고 있는 사이버인프라스트럭처(고성능 컴퓨터, 초고속 네트워크)를 기반으로 컴퓨터에 익숙하지 않은 계산화학 관련 연구자 및 전공자들이 인터넷 상에서 계산화학 분야 교육을 받을 수 있는 e-Science 기반 계산화학 교육을 위한 환경을 설계하고자 한다. 이를 위해 1) 세계적으로 유명한 GridChem, CICC, NBCR 웹사이트를 이용하여 발표된 논문을 분석하였으며, 2) 분석된 결과를 가지고 주로 사용되는 계산화학 도구의 통계를 산출하여, 3) 이를 바탕으로 KISTI 사이버인프라스트럭처를 활용한 e-Science 기반 계산화학 교육 환경(e-Chem)을 설계하였다.

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