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권호별목차 / 소장처보기

H : 소장처정보

T : 목차정보

한국환경과학회지 = Journal of the environmental sciences 10건

  1. [국내논문]   한반도를 포함한 동아시아 영역에서 오존전량과 유해자외선의 특성과 예측  

    문윤섭 (Department of Environmental Education, Korea National University of Education ) , 민우석 (Department of Environmental Education, Korea National University of Education ) , 김유근 (Department of Atmospheric Sciences, Pusan National University)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 701 - 718 , 2006 , 1225-4517 ,

    초록

    The average ratio of the daily UV-B to total solar (75) irradiance at Busan (35.23 $^{\circ}$ N, 129.07 $^{\circ}$ E) in Korea is found as 0.11%. There is also a high exponential relationship between hourly UV-B and total solar irradiance: UV-B=exp (a $\times$ (75-b))(R $^2$ =0.9 0.93). The daily variation of total ozone is compared with the UV-B irradiance at Pohang (36.03 $^{\circ}$ N, 129.40 $^{\circ}$ E) in Korea using the Total Ozone Mapping Spectrometer (TOMS) data during the period of May to July in 2005. The total ozone (TO) has been maintained to a decreasing trend since 1979, which leading to a negative correlation with the ground-level UV-B irradiance doting the given period of cloudless day: UV-B=239.23-0.056 TO (R $^2$ =0.5 0.52). The statistical predictions of daily total ozone are analyzed by using the data of the Brewer spectrophotometer and TOMS in East Asia including the Korean peninsula. The long-term monthly averages of total ozone using the multiplicative seasonal AutoRegressive Integrated Moving Average (ARIMA) model are used to predict the hourly mean UV-B irradiance by interpolating the daily mean total ozone far the predicting period. We also can predict the next day's total ozone by using regression models based on the present day's total ozone by TOMS and the next day's predicted maximum air temperature by the Meteorological Mesoscale Model 5 (MM5). These predicted and observed total ozone amounts are used to input data of the parameterization model (PM) of hourly UV-B irradiance. The PM of UV-B irradiance is based on the main parameters such as cloudiness, solar zenith angle, total ozone, opacity of aerosols, altitude, and surface albedo. The input data for the model requires daily total ozone, hourly amount and type of cloud, visibility and air pressure. To simplify cloud effects in the model, the constant cloud transmittance are used. For example, the correlation coefficient of the PM using these cloud transmissivities is shown high in more than 0.91 for cloudy days in Busan, and the relative mean bias error (RMBE) and the relative root mean square error (RRMSE) are less than 21% and 27%, respectively. In this study, the daily variations of calculated and predicted UV-B irradiance are presented in high correlation coefficients of more than 0.86 at each monitoring site of the Korean peninsula as well as East Asia. The RMBE is within 10% of the mean measured hourly irradiance, and the RRMSE is within 15% for hourly irradiance, respectively. Although errors are present in cloud amounts and total ozone, the results are still acceptable.

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  2. [국내논문]   산업단지 내 저층과 고층 아파트의 외기 중 호흡성분진과 일산화탄소 수준  

    조완근 (Department of Environmental Engineering, Kyungpook National University ) , 이준엽 (Department of Environmental Engineering, Kyungpook National University)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 719 - 725 , 2006 , 1225-4517 ,

    초록

    Since low-floor apartments ate vertically closer to patting lots and roadways, it is hypothesized that residents in low-floor apartments may be exposed to elevated ambient levels of motet vehicle emissions compared to residents in high-floor apartments. The present study examined this hypothesis by measuring two motor vehicle source-related pollutants(CO and PM10) in ambient air of high-rise apartment buildings within the boundary of industrial complexes according to atmospheric stability The ambient air concentrations of CO and PM10 were higher for low-floor apartments than for high-floor apartments, regardless of atmospheric stability, The median concentration ratio of the low-floor air to high-floor alt ranged from 1.3 to 2.0, depending upon atmospheric stabilities, seasons and compounds. Moreover, the CO and PM10 concentrations were significantly higher in the winter and in the summer, regardless of the Hoot height. Atmospheric stability also was suggested to be important for the residents' exposure of high-rise apartment buildings to both CO and PM10. The median ratios of surface inversion air to non-surface inversion air ranged from 1.2 to 1.7 and from 1.0 to 1.6 lot PM10 and CO, respectively, depending upon seasons. Conclusively, these parameters(apartment floor height, season, and atmospheric stability) should be considered when evaluating the exposure of residents, living in high-rise apartment buildings, to CO and PM10. Meanwhile, the median PMl0 outdoor concentrations were close to or higher than the Korean annual standards for PM10, and the maximum PM10 concentrations substantially exceeded the Korean PM10 standard, thus suggesting the need for a management strategy for ambient PM 10. Neither the median nor the maximum outdoor CO concentrations, however, were higher than the Korean CO standard.

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  3. [국내논문]   광합성 측정기를 이용한 미세조류의 광합성 효율 측정  

    조은섭 (South Sea Fisheries Research Institute, NFRDI ) , 이필용 (South Sea Fisheries Research Institute, NFRDI ) , 오현주 (South Sea Fisheries Research Institute, NFRDI ) , 최윤석 (South Sea Fisheries Research Institute, NFRDI ) , 최양호 (South Sea Fisheries Research Institute, NFRDI ) , 이삼근 (South Sea Fisheries Research Institute, NFRDI)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 727 - 735 , 2006 , 1225-4517 ,

    초록

    In this study, the PHYTO-PAM-fluorometric method was used to evaluate the ETR $_{max}$ in terms of sensitivity to DIN/DIP against 14 microalgae: Prorocentrum micans, Heterocapsa triquetra, Gymnodinium impudicum, Cymnodinium catenatum, Amphidinium caterae, Chlorella vulgaris, Chroococcus minutus, Microcystis aeruginosa, Chlorella ellipsoidea, Nannochloris oculata, Oocystis lacustris, Chroomonas salina, Gloeocystis gigas, and Prymnessium parvum. We found that P. micans, H. triquetra, and A. caterae exposed to the maximum level of DIN/DIP were significantly smaller in the ETR $_{max}$ than that of the minimum and moderate mixture. Unlikely the ETR $_{max}$ , the initial slope alpha was not significantly different at the level of 60 DIN/DIP. In G. catenatum, the moderate levels of 15 and 20 in DIN/DIP were found to be significantly different from the ETR $_{max}$ at Chl-Ch4. Gymnodinium impudicum had a higher value than that of the ETR $_{max}$ than that of dinoflagellates used in this study, ranging from 306.1 (Ch4, DIN/DIP: 10) to 520.1 (Ch4, DIN/DIP: 30). The ETR $_{max}$ value obtained from other microalgae was similar to C. impudicum at any of the ratios of DIN/DIP and channels. Consequently, the influence of offshore water current assures us of the suppression of photosynthesis and electron transport rate in dinoflagellates. Gymnodinium impudicum has not been researched in the area of red tides in Korea, but it will be enough to creat the massive algal blooms in the future because of higher potential photochemical availability.

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  4. [국내논문]   대구지역 주요 도로변 대기오염물질의 농도 특성   피인용횟수: 1

    조완근 (경북대학교 환경공학과 ) , 최성락 (대구지방환경청 측정분석과)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 737 - 744 , 2006 , 1225-4517 ,

    초록

    Present study was designed to characterize the concentrations of major roadside air pollutants in Daegu and to compare with those of Seoul and Busan. Evaluated were the exceedance frequence of mean concentrations of target compounds(CO, NO $_2$ , O $_3$ , PM $_{10}$ , SO $_2$ ) and the relationship for time variation. Two air pollution monitoring stations(one roadside station and one residential station) in Daegu were selected for this study. In addition, one roadside monitoring station from each of Seoul and Busan was chosen for the comparison of Daegu monitoring stations. The data analyzed in the current study were collected from 1998 to 2000 by Daegu Regional Environmental Management Office. The roadside concentrations of NO2 and PM to and the exceedance frequency of ambient air standard levels in Daegu were higher than those of Seoul and Busan. Except 03, the roadside concentrations of all target compounds showed following three distinguished patterns; first, possibly due to increased traffic density, the concentrations increased from 0500 to 0900(LST), second, the concentrations decreased from 0900 to 1700(LST) possibly due to the increased wind velocity and decreased traffic density, and finally, increased traffic density, the concentrations increased again from 1700 to 2100(LST). An implication was that major air pollution sources shifted from residential area to road-area during rush hours.

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  5. [국내논문]   복잡 해안지역 해상풍 모의의 정확도 개선-II: LAPS를 사용한 자료동화   피인용횟수: 1

    배주현 (부산대학교 대기과학과 ) , 김유근 (부산대학교 대기과학과 ) , 정주희 (부산대학교 대기과학과 ) , 권지혜 (부산대학교 대기과학과 ) , 서장원 (기상연구소 해양기상지진연구실 ) , 김용상 (기상청 정보화담당관실)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 745 - 757 , 2006 , 1225-4517 ,

    초록

    We focus on the improvement of accuracy of sea surface wind over complex coastal area doling the warm season. Local Analysis Prediction System (LAPS) was used to improve the initial values in Mesoscale Meteorological model (MM5). During the clear summer days with weak wind speed, sea surface wind simulated with LAPS was compared with the case without LAPS. The results of modeling with LAPS has a good agreement mesoscale circulation such as mountain and valley winds on land and in case of modeling without LAPS, wind speed overestimated over the sea in the daytime. And the results of simulation with LAPS indicated similar wind speed values to observational data over the sea under influence of data assimilation using BUOY, QuikSCAT, and AMEBAS. The present study suggests that MM5 modelling with LAPS showed more improved results than that of without LAPS to simulate sea surface wind over the complex coastal area.

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  6. [국내논문]   객관분석기법에 의한 바람장 모의의 초기입력장 변화 효과 분석  

    김유근 (부산대학교 대기과학과 ) , 정주희 (부산대학교 대기과학과 ) , 배주현 (부산대학교 대기과학과 ) , 권지혜 (부산대학교 대기과학과 ) , 서장원 (기상연구소 해양기상지진연구실)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 759 - 774 , 2006 , 1225-4517 ,

    초록

    We employed two data assimilation techniques including MM5 Four Dimensional Data Asssimilation (FDDA) and Local Analysis and Prediction System (LAPS) to find out the effects of the changed inetial conditions on the wind fields simulation according to the objective analysis methods. We designed 5 different modeling cases. EXP B used no data assimilation system. Both EXP Fl using surface observations and EXP F2 with surface and upper-air observations employed MM5 FDDA. EXP Ll using surface observations and EXP L2 with surface and upper-air observations used LAPS. As results of, simulated wind fields using MM5 FDDA showed locally characterized wind features due to objective analysis techniques in FDDA which is forcefully interpolating simulated results into observations. EXP Fl represented a large difference in comparison of wind speed with EXP B. In case of LAPS, simulated horizontal distribution of wind fields showed a good agreement with the patterns of initial condition and EXP Ll showed comparably lesser effects of data assimilation of surface observations than EXP Fl. When upper-air observations are applied to the simulations, while MM5 FDDA could hardly have important effects on the wind fields simulation and showed little differences with simulations with merely surface observations (EXP Fl), LAPS played a key role in simulating wind fields accurately and it could contribute to alleviate the over-estimated winds in EXP Ll simulations.

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  7. [국내논문]   수문학적 토양군의 분류기준에 따른 SCS CN 및 유출변화특성에 관한 연구   피인용횟수: 3

    안승섭 (경일대학교 건설정보공학과 ) , 박노삼 (경일대학교 토목공학과 ) , 고수현 (상주대학교 환경공학과 ) , 송인렬 (경일대학교 대학원)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 775 - 784 , 2006 , 1225-4517 ,

    초록

    In this study, CN value was estimated by using detailed soil map and land cover characteristic against upper basin of Kumho watermark located on the upper basin of Kumho river and the hydrologic morphological characteristic factors were extracted from the basin by using the DEM document. Also the runoff analysis was conducted by the WMS model in order to study how the assumed CN value affects the runoff characteristic. First of all, as a result of studying the soil type in this study area, mostly D type soil was Identified by the application of the 1987 classification criteria. However, by that in 1995, B type soil and C type soil were distributed more widely in that area. When CN value was classified by the 1995 classification criteria, it was estimated lower than in 1987, as a result of comparing the estimated CNs by those standars. Also it was assumed that CN value was underestimated when the plan for Geum-ho river maintenance was drawn up. As a result of the analysis of runoff characteristic, the pattern of generation of the classification criteria of soil groups appeared to be similar, but in the case of the application of the classification criteria in 1995, the peak rate of runoff was found to be smaller on the whole than in the case of the application of the classification criteria in 1987. Also when the statistical data such as the prediction errors, the mean squared errors, the coefficient of determination and other data emerging from the analysis, was looked over in total, it seemed appropriate to apply the 1995 classification criteria when hydrological soil classification group was applied. As the result of this study, however, the difference of the result of the statistical dat was somewhat small. In future study, it is necessary to follow up evidence about soil application On many more watersheds and in heavy rain.

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  8. [국내논문]   상수원수의 유기물 특성에 따른 염소처리시 THMs 및 HAAs의 생성특성   피인용횟수: 1

    오순미 (제주도 광역수자원관리본부 ) , 김승현 (경남대학교 토목공학과 ) , 이민규 (부경대학교 응용화학공학부 ) , 허미란 (제주대학교 토목환경공학전공 ) , 감상규 (제주대학교 토목환경공학전공)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 785 - 797 , 2006 , 1225-4517 ,

    초록

    The formation characteristics of trihalomethanes (THMs) and haloacetic acids (HAAs) were investigated in chlorination of raw water of different organic mallet characteristics. The samples used in this study were hydrophobic (N-HPO) and hydrophilic fraction (N-HPI) (which were concentrated and separated from Nakdong river water), and humic acid (HA) (which is known as a strong hydrophobic acid) as a reference organic matter, the specific UV absorbance (SUVA) of which was 2.19, 1.15 and 7.92, respectively. With increasing chlorine contact time, THMFP and HAAFP (the formation potential of THMs and HAAs) increased, but their increase was different depending on the organic mallet characteristics (i.e., for N-HPI, THMFP was higher than HAAFP, but the inverse result was obtained for N-HPO and HA and the ratio between them was greater for HA), and the mainly formed chemical species were CHCI $_3$ in case of THMs and dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) in case of HAAs for N-HPO and HA (and the ratios of CHCI $_3$ to total THMs and DCAA and TCAA to total HAAs for HA were higher than those for N-HPO), but for N-HPI, the ratio of brominated THMs was a little higher than that of CHCI $_3$ and the ratio of DCAA and TCAA to total HAAs was lower than that of N-HPO, although they are main chemical species in case of HAAs. Comparing THMFP and HAAFP with the increase in bromide concentration added with those in not adding it, the former increased greatly and its increase was higher for the organic mallet with stronger hydrophobicity, but the latter was lower for N-HPO and N-HPI and was similar for HA. The main chemical species with increasing bromide concentration were CHBt $_3$ in case of THMs regardless of organic matter characteristics, and dibromoacetic acid (DBAA) for N-HPO and N-HPI, DBAA and tribromoacetic acid (TBAA) for HA in case of HAAs. With increasing reaction temperature and pH, THMFP and HAAFP increased for the former, but for the latter, THMFP increased and HAAFP decreased, although the rate of increase or decrease was different with organic mallet characteristics.

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    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

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  9. [국내논문]   새로운 N,N,O계 세 자리 리간드의 합성과 전위차적정법에 의한 전이금속 착물의 안정도상수의 결정   피인용횟수: 1

    김선덕 (대구대학교 화학.응용화학과 ) , 이도협 (대구대학교 화학.응용화학과)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 799 - 809 , 2006 , 1225-4517 ,

    초록

    Hydrobromic acid salts of new N, N, O tridentate ligands containing phenol, 2-[(2-Methylamino- ethyl- amino)-methyl]-phenol(H-MMP. 2HBr), 5-Bromo-2-[(2-Methylamino-ethylamino)-methyl]-phenol (Br- MMP. 2HBr), 5-Chloro-2-[(2-Methylamino-ethylamino)-methyl]-phenol(Cl-MMP. 2HBr), 5-Methyl-2-[(2-Methylamino-ethylamino)-methyl]-phenol(Me-MMP. 2HBr), 5-Methoxy-2-I(2-Methylamino-ethylamino)- methyl]-phenol(MeO- MMP. 2HBr) and. 1-[(2-Methylamino-ethylamino)- methyl]-naphthalen-2-ol(Nap- MMP. 2HBr) were synthesized. The synthesized ligands were confirmed by C. H. N. atomic analysis, UV-visible and IR spectroscopies, $^1$ H NMR, $^{13}$ C NMR and mass analysis. The potentiometry study revealed that the proton dissociation constants(logK $_n^H$ ) of the synthesized ligands and stability constants (logK $_{ML}$ , logK $_{LM2}$ ) of transition metal complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II) ions occurred in three steps and the order of the calculated overall proton dissociation constants(log $\beta_p$ ) and stability constants (logK $_{ML}$ ) of ligands was Br-MMP. 2HBr $\delta_p$ ). The synthesized ligands usually form 2:1(ML $_2$ ) complexes with transition metal ions. The order of the stability constants of each transition metal ions was Co(II) Zn(II) ;> Cd(II) ;> Pb(II).

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  10. [국내논문]   유통 한약재의 잔류농약 모니터링   피인용횟수: 7

    이선화 (식품의약품안전청 ) , 김형수 (식품의약품안전청 ) , 김용무 (부산지방식품의약품안전청 시험분석센터 ) , 김우성 (부산지방식품의약품안전청 시험분석센터 ) , 원영준 (부산지방식품의약품안전청 시험분석센터 ) , 채갑용 (식품의약품안전청 ) , 김옥희 (부산지방식품의약품안전청 시험분석센터 ) , 박흥재 (인제대학교 환경시스템학부 ) , 정성욱 (인제대학교 환경시스템학부)
    한국환경과학회지 = Journal of the environmental sciences v.15 no.8 ,pp. 811 - 817 , 2006 , 1225-4517 ,

    초록

    We were carried out to monitor pesticide residues in herbal medicine. In Korea Pharmacy, these are no critics for pesticides except 5 kinds of organic chlorines (BHC, DDT, Aldrin, Endrin, Dieldrin) and heavy metals. We analysed 53 kinds of pesticides consisted of 14 kinds of organochlorines, 20 kinds of organophosphoruses, and 19 kinds of pesticides estimated endocrine disruptor on 373 samples consisted with 30kinds of herbal medicine. In this study, Domestic, Chinese and Japanese herbal medicines were tested with GC/ECD, GC/NPD and then confirmed with GC/MSD. Recoveries were 75 $\sim$ l10% in ECD detector and 76 $\sim$ 97% in NPD detector. Detection limits were 0.004 $\sim$ 0.064ppm in ECD detector and 0.006 $\sim$ 0.094ppm in NPD detector. Organochlorines and others were not detected in samples.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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