http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Nano-S가 해양수질 및 저질에 미치는 영향에 관한 연구 2. 현장실험 결과
조천래,장영남,조현서,Cho, Chon-Rae,Jang, Young-Nam,Cho, Hyeon-Seo 해양환경안전학회 2007 海洋環境安全學會誌 Vol.13 No.1
본 연구의 목적은 적조구제에 사용하기 위해 개발된 Nano-S를 해양에 이용함에 있어 Nano-S가 해양환경에 미치는 영향을 연구하는 데에 있다. 실험은 2005년 8월부터 2006년 2월까지 총6개월에 걸쳐 이뤄졌다. 해역과 조간대에서 실시하였으며, 1%의 고농도구와 0.1%의 저농도구로 구분하여 실시하였다. 조사결과 전 실험구에서 적조구제물질의 투여에 따른 유의적인 증감은 전반적으로 나타나지 않았다. 해역의 수질에서 pH, 염분, DO는 전 실험시간에 걸쳐 서서히 증가하는 경향을 나타내었으며, 영양염류는 실험기간에 걸쳐 농도가 서서히 감소하는 경향을 나타냈다. 해역의 저질에서는 측정항목의 농도가 낮아 졌으며, 조간대에서도 거의 같은 양상을 나타내고 있었다. 이러한 결과는 투입한 물질의 양과 관계없이 대조구를 포함한 거의 전 시험구에서 동일하게 나타났다. 중금속의 경우 고농도 투여구를 중심으로 조사한 결과 물질투여 시험구에서 투여 전후에 유의할만한 결과는 나타나지 않았다. 또한, 투여구를 대조구와 비교하여서도 농도차이는 뚜렷이 발견되지 않았다. The purpose of this study was to observe the effect on the water quality and sediment environment by the use of Nano-S for anti-Red tide material. The experiment was performed at subtidal and intertidal zone during six months(from Aug 2005 to Feb. 2006). The experiment sites were divided with concentration of materials. One is lower concentration(0.1%) and the other is higher concentration(1%). The results of experiments didn't show the remarkable influence of the materials effect before and after applying the Nano-S and the red mud. pH, salinity and DO were slowly increased during experiment period but nutrients were conversely decreased in the seawater. In the subtidal zone, qualities of sediments, IL, AVS and COD, were gradually lowered and the similar results were appeared in the intertidal zone. These results showed similar trends over all the experiment sites including control site. The results of heavy metals also did not show the interest different effect before and after applying the Nano-S and red mud compared with control site.
조천래(Chonrae Cho),조재구(Jae-Gu Cho),엄익춘(Ig-chun Eom),이병천(Byoung-cheun Lee),김수진(Sue-jin Kim),최경희(Kyunghee Choi),윤준헌(Junheon Yoon) 환경독성보건학회 2010 환경독성보건학회지 Vol.25 No.3
During the last decade, perfluorinated compounds (PFCs) have gained more attention due to their toxicity and global distribution. The aim of this study was to examine the distribution and bioaccumulation of perfluorinated compounds (PFCs) in aquatic wildlife effected from a sewage treatment plant. The concentrations of 12 PFCs were determined in water, sediment and fish samples. PFOS were predominantly detected in both ambient environment and fish. In fish, the concentration of PFCs in blood was the highest (i.e., 112.47 ng/㎖ wet-wt. PFOS) in comparison to other tissues. However, PFOA and PFHpS were highly detected in gonad as 3.87 and 4.58 ng/g wet-wt., respectively. The bioconcentration factor (BCF) of PFCs was greatest in the blood> liver?gonad > kidney> gill, and lowest in the muscle tissue. The BCFs of PFUnDA (39,000), PFDA(2.700) and PFOS (1,100) were rated as high values based on wet weight concentration. BCFs increased with increasing the length of the perfluoralkyl chain.
조천래(Chonrae Cho),이용화(YongHwa Lee),성기탁(KiTack Seong),성진(Jin Sung),민병규(Byeong Kyu Min),Mai Duc Hung,김현중(Hyeon Jung Kim),주미조(Mi jo Ju),고운이(Uni Ko),대금향(Keumhyang Dae),오상우(Sangwoo Oh),이문진(Moonjin Lee) 한국해양환경·에너지학회 2021 한국해양환경공학회 학술대회논문집 Vol.2021 No.10
본 연구는 광양만과 울산연안의 해양산업시설 주변해역에서 위험유해물질 중 휘발성유기화합물의 잔류 특성을 파악하고, 해양산업시설로부터 해역으로 유입되는 특성을 파악하기위해 유입하천에서 휘발성유기화합물의 농도를 확인하였다. 46종의 휘발성유기화합물에 대하여 유입하천에서 잔류농도를 조사한 결과 각각 10종과 11종의 물질이 검출되었으며, 주변해역에서는 각각 14종과 10종의 물질이 검출되었다. 총 휘발성유기화합물의 검출농도는 광양만 유입하천에서 0.05~0.21 mg/L, 울산연안 유입하천에서 0.45~2.07 mg/L, 광양만에서 0.07~1.18 mg/L, 울산연안에서 1.07~5.15 mg/L의 범위로 검출되었다. 주변해역에서 휘발성유기화합물의 농도가 상대적으로 높은 수준이었으며, 검출물질은 주로 알코올류와 탄화수소류로 탄소의 수가 6개 내지 9개에 이르는 저분자량으로 확인되었다. 배출구의 전수조사를 통해 해양환경으로 유입되는 시설에 대한 현황파악이 필요할 것으로 판단되며, 본 연구의 결과는 해양산업시설 필수 배출 위험유해물질 배출기준 수립의 기초자료로 활용하고자 한다. This study identified the residual characteristics of Volatile Organic Compounds among Hazardous Noxious Substances in the waters around marine industrial facilities along the Gwangyang Bay and Ulsan coast, and confirmed the concentration of volatile organic compounds in inflow streams. As a result of examining the residual concentration in the inflow streams for 46 types of volatile organic compounds, 10 and 11 substances were detected, respectively. 14 and 10 substances were detected in the surface seawater around marine industrial facilities, respectively. The total concentration of volatile organic compounds was detected in the range of 0.05~0.21 mg/L in the inflow stream of Gwangyang Bay, 0.45~2.07 mg/L in the inflow stream of Ulsan Bay, 0.07~1.18 mg/L in Gwangyang Bay, and 1.07~5.15 mg/L in the coast of Ulsan. The concentration of volatile organic compounds was relatively high in the seawater around marine industrial facilities, and the detection material was mainly alcohol and low molecular hydrocarbons(C6~C9). It is judged that it is necessary to grasp the current status through a full survey of facilities discharged into the marine environment. The results of this study are intended to be used as basic data for establishing standards for discharging hazardous substances essential for discharging marine industrial facilities.
4대강 유역 및 공단지역 환경 중 PFOS 및 PFOA의 잔류수준 비교평가
조천래 ( Chon Rae Cho ),엄익춘 ( Ig Chun Eom ),김은주 ( Eun Ju Kim ),김수진 ( Sue Jin Kim ),최경희 ( Kyung Hee Choi ),조현서 ( Hyeon Seo Cho ),윤준헌 ( Jun Heon Yoon ) 한국환경분석학회 2009 환경분석과 독성보건 Vol.12 No.4
PFCs are group of fluorochemicals that have been produced and used for over 50 years for various purpose including soil/stain resistance and surfactant applications. These chemicals were degraded to Perfluorooctane sulfonate (PFOS) and Perfluorooctanoic acid (PFOA) that were kinds of persistence metabolites. Previous studies showed that these chemicals can be accumulated in various environmental media. In this study, the concentration level of PFOS and PFOA were measured in 59 samples collected from 4 major river watersheds and 6 industrial complex areas in 2006 and 2007. Mean concentration of PFOS in water, sediment and soil were N.D.-1180.0 ng/L, N.D.-9.17 ng/g dry-wt. and N.D.-10.97 ng/g dry-wt. respectively. Mean concentrations of PFOA in water, sediment and soil were N.D.-13850.0 ng/L, N.D.-2.07 ng/g dry-wt. and N.D.-1.04 ng/g drywt., respectively. The concentration of PFOS in water samples were significant difference among river, industrial complex stream and waste water treatment effluent (p<0.05). But PFOA were no significant difference among those samples. These results suggested that concentration of PFOS in water was direct effected by industrial complex activities.
안성천과 경안천 수중 과불화화합물의 잔류농도와 분광학적 특성
조천래 ( Chon Rae Cho ),이두희 ( Doo Hee Lee ),이병천 ( Byoung Cheun Lee ),김수진 ( Sue Jin Kim ),최경희 ( Kyung Hee Choi ),윤준헌 ( Jun Heon Yoon ) 한국환경분석학회 2010 환경분석과 독성보건 Vol.13 No.4
Concentrations of perfluorinated compounds (PFCs) in water samples from Anseong and Gyeongan stream were measured using an LC-MS/MS system. The average perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS), perfluorooctanoic acid (PFOA) and perfluorononanoic acid (PFNA) concentrations of samples collected from Anseong stream were 43.4 ng/L, 15.0 ng/L, 14.5 ng/L and 3.5 ng/L, respectively. In the case of Gyeongan stream, the average concentration of PFOS, PFOA, PFHxS and PFNA were 15.5 ng/L, 8.3 ng/L, 5.4 ng/L and 1.5 ng/L, respectively. From the result, PFOS was found the dominant PFCs in these streams. The PFCs detected from the streams were correlated with DOC concentration, UV/vis factor and Fluorescence properties of water samples. In general, PFCs concentration had positive correlations with DOC concentration, A250/365 and A465 and synchronous Fluorescence indexes (Protein-Like Fluorescence, Fulvic-Like Fluorescence, Humic-Like Fluorescence). However, PFCs were negatively correlated with S(R). This result showed that concentration of PFCs could be significantly influenced by the aromaticity and molecular weight of organic compounds in water samples.