• Title/Summary/Keyword: Environmental survey

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Correlations between Spatial Distribution of Alien Plants and Land Cover - Focused on National Ecosystem Survey - (외래식물의 공간분포와 토지피복간의 상관성 연구 - 전국자연환경조사 자료를 중심으로 -)

  • Jung, Tae-Jun;Shin, Hyun-Chul;Shin, Young-Kyu;Kim, Myung-Jin
    • Journal of Environmental Impact Assessment
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    • v.22 no.5
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    • pp.455-466
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    • 2013
  • The aim of this study is to seek application plans of National Ecosystem Survey database based on comparison and examination of feasible analysis methods for distribution characteristics of alien plants. In order to set up a correlation analysis method between alien plants and environmental factors, we had reviewed the 3rd National Ecosystem Survey guide book and consequently, two kinds of analysis method were tested. One was 1/25,000 scale map boundary based analysis and the other was representative mountain area based analysis. In this study we restricted the research area to select reliable surveyed database from whole "2011 National Ecosystem Survey flora database" according to two major criteria. First, an area defined by 1/25,000 scale map boundary and representative mountain area where the number of surveyed flora records should be within top 20%. Second, land cover map should also be built up inside that area. As a result, 25 map boundaries and 25 representative mountain areas were extracted to be analyzed. To limit a boundary for every representative mountain area we had analyzed distribution of environmental factors around that area by manual inspection with SPOT-5 remote sensed satellite image then designated 3km buffer zone from each alien plant location in that area. After then, naturalized index (NI) and urbanized index (UI) was calculated and correlations analysis was carried out. With the result of correlation analysis by map boundary only agricultural land area showed significant value of r (0.4~0.6, correlated) and the rest of factors did not. In the case of representative mountain area, the result showed that agricultural land, road and forest area showed significant value of r (0.6~0.8, highly correlated) which was corresponding to existing researches. Therefore, representative mountain area based method is preferable when using the alien plants database of National Ecosystem Survey for species distribution analysis. And also, considering the way of database utilization is strongly suggested at the first stage of survey planning for promoting active use of national ecosystem survey database.

An Empirical Survey on the Current Practices of Environmental Performance Evaluation in Korean Firms (우리 나라 기업의 환경성과평가 실태 연구)

  • 성백서
    • Journal of Korean Society for Quality Management
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    • v.30 no.3
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    • pp.203-236
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    • 2002
  • Environmental Performance Evaluation(EPE) is a key process of Corporate Environmental Management. This paper presents the results of an empirical survey on the status of current practices in EPE of Korean firms. Based on a corporate environmental management(CEM) model, which is initially developed by Hibbitt and Kamp-Roelands(2001) and modified in terms of EPE, the survey is peformed on the population of Korean firms, which are composed of firms certified as "environmentally friendly" by Korean government and/or certified under Is014001, and compares its results with those of Europe's. Although the relatively low response rate and some methodological limitations makes us be cautious about the interpretation, the results shows many interesting aspects of the current states of Korean firms' EPE practices. That is, the levels of EPE implementation in the environmentally-leading companies of Korea are almost the same as that of European companies, I. e., in the-final-part-of-developing-stage (3rd stage) level of the CEM model. It is also shown that as In Europe's case, Korean firms are also moving slower in external relationships than in internal control and management, are more developed in the parameters like environmental policy, Internal control, Information system, which are requirements of certification under Is014001, than in parameters like life cycle analysis and full cost accounting, which requires more research efforts, etc.orts, etc.

Value of a statistical life estimation of carcinogenic chemicals for socioeconomic analysis in Korea

  • Lee, Geonwoo;Lee, Yongjin;Lee, Hanseul;Hong, Jiyeon;Yang, Jiyeon
    • Environmental Analysis Health and Toxicology
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    • v.30 no.sup
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    • pp.5.1-5.5
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    • 2015
  • Objectives To protect public health from risk, the Minister of Environment in Korea legislated an act concerning the registration and evaluation of chemical substances. In this study, we estimated the value of a statistical life (VSL) of carcinogenic chemicals to evaluate the socioeconomic analysis in Korea. Methods The estimation of the health benefit can be calculated through an individual's VSL and willingness to pay (WTP). To estimate the VSL and WTP, we used a contingent valuation method through a web-based survey. Results The survey is conducted with 1434 people living in Seoul and six large cities. An analysis of the survey is essential to review the distribution of the characteristics of the target population. The statistically significant variables affecting the WTP are location, age, household income, quality of life. Through the review of data, we secured statistical validity. The WTP was estimated as 41205 Korean won (KRW)/person, and the estimated VSL appeared as 796 million KRW/person. Conclusions There is a case in which the amount of statistical life value is estimated in connection with domestic environmental policy, fine dust, etc. However, there are no cases of evaluation for chemical. The utilization of this result is possible for conducting other study with chemicals.

Strategies for Human Resources Development in the Environmental (환경기술인력 육성 방향 모색을 위한 기초연구)

  • Ra, Young-Sun;Park, Jong-Sung
    • Hwankyungkyoyuk
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    • v.16 no.2
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    • pp.1-14
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    • 2003
  • This study aims to review the present condition of human resources development in environment technology area and to explore the direction of human resources development plans, based on the results of a survey targeting experts in this area. Related papers & literatures are referred and a survey for experts' opinions are carried out. The survey was oriented to the importance and effectiveness of policies designed by Korea Ministry of environment. The main findings of this study are as follows; firstly, an emphasis should be put on generating professionals in charge of creating domestic demand for environmental purposes for promotion to make excellent environmental techniques being of practical use and help them go into businesses was turned out crucial; secondly, it is advised to upgrade the level of qualifications of environmental technicians by reforming into a graduate schoolcentered educational system on a human resource-rearing phase; thirdly, retraining should be provided by law to ensure the enhancement of re-educating the existing environmental technicians; fourth, efforts should be made to promptly develope new techniques and unify declining traditional items, deterring national technical qualification system oriented toward cultivating superintendents in the environment field.

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A survey on the re-training needs in the environmental industry (환경산업에서의 교육$\cdot$훈련 요구 조사 분석)

  • Ra, Young-Sun;Park, Jong-Sung
    • Hwankyungkyoyuk
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    • v.16 no.1
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    • pp.48-60
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    • 2003
  • This study is aimed at providing an analysis on the re-training needs in for environmental sector as well as on the current status on the employment of technicians in the environmental industry. The questionnaires of 450 technicians employed in 993 environmental businesses are collected. The survey questions were composed mainly of current status on the employment of technicians in the environmental field, specialty and duty in the working place, the relations with a licence, the level of satisfactory to duties and intention to leave hls/her job, difficultles in the working coditions, experiences of training related environmental techniques during a recent year, and the needs of re-training in the environmental industry. The policies on custom-oriented retraining and technical education, on the curricula by sector, on the establishment of retraining.

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Enhancement of Seismic Stacking Energy with Crossdip Correction for Crooked Survey Lines

  • Kim, Ji Soo;Lee, Sun Jung;Seo, Yong Seok;Ju, Hyeon Tae
    • The Journal of Engineering Geology
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    • v.24 no.2
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    • pp.171-178
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    • 2014
  • In seismic reflection data processing, the crossdip correction effectively focuses the stacking energy near the sharp bends of a crooked survey line. Additionally, approximate 3-D information on the reflector (e.g., true crossdip angle and lateral continuity) are locally investigated as a by-product of the crossdip correction procedure. Improvement of the signal-to-noise ratio and estimation of reflector crossdip attitude are tested, in terms of both common midpoint bin direction and processing-line type, using synthetic seismic reflection data. To effectively image the reflection energy near bends in seismic survey lines, straight-line binning is preferred to slalom-line binning.

Deep structure of Ulsan fault by electric and EM surveys in ipsil area, South of Kyeongju (전기, 전자탐사에 의한 경주남부 (입실지역)의 울산 단층 심부구조)

  • 손호응
    • Economic and Environmental Geology
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    • v.32 no.2
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    • pp.161-167
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    • 1999
  • Electric and electromagnetic surveys were conducted to investigate the deep structure of the Ulsan fault in Ipsil area, south of Kyeongju. On this study, especially high-frequency magnetotelluric method of electromagnetic survey in the frequency range of 10~100,000 Hz was mainly employed to study the deep subsurface configuration. High-frequency MT survey was performed at 70 points of spacing 30~50 m, making 3.8 km survey line. As a survey result, a 2-km-depth 2-D cross-section was achieved. It shows vertical and horizontal subsurface variations of resistivity values. Near-surface layer having low resistivity value becomes thicker eastward up to 800m. There is a steep low resistivity zone in the west side of survey line, and there exists two low resistivity zones dipping west in the east side of survey line. Two low resistivity zones are interpreted to be related to major movement pattern of the Ulsan fault. This suggests that major fault lines are developed on both peripheral sides of the broad fault zone.

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Data resource profile: the Korean Working Conditions Survey (KWCS)

  • Yoonho Cho
    • Annals of Occupational and Environmental Medicine
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    • v.35
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    • pp.49.1-49.7
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    • 2023
  • The Korean Working Conditions Survey (KWCS) is a state-approved statistical survey that has been conducted by the Occupational Safety and Health Research Institute (OSHRI) every 3 years since 2006 to monitor changes in the working conditions of Koreans. This cross-sectional national survey involves a sample of 50,000 employed people aged 15 or older. KWCS measures various working conditions through > 130 survey questions, including questions regarding working hours, labor intensity, work-life balance, degree of exposure to risk factors, and subjective health status. Professional survey interviewers visit households and conduct face to face interviews. KWCS provides data and statistics for occupational safety and health polices and research in Korea. Furthermore, OSHRI holds academic conferences every year, awards high-quality academic papers, and supports researchers using data. Microdata is publicly available through the OSHRI website (https://oshri.kosha.or.kr).