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Sunggyu Lee(이성규),Tae-Jin Park(박태진),Kyungho Choi(최경호),Hyo-Bang Moon(문효방) 환경독성보건학회 2021 한국독성학회 심포지움 및 학술발표회 Vol.2021 No.5
Synthetic musk compounds (SMCs) are typical anthropogenic organic contaminants used as additives in many consumer products. SMCs could enter into the aquatic environment through effluents of wastewater treatment plants (WWTPs). Several studies reported that acute and chronic toxicity to aquatic organisms. In this study, surface water, sediment, and biota samples were collected from four major rivers of Korea in 2020, and were determined for 12 SMCs using a gas chromatography coupled to tandem mass spectrometer. Among analyzed SMCs, HHCB, DPMI, MK, and AHTN were detected in water samples. Mean concentrations of SMCs (ΣSMC) was 229, 99.8, 85.6, and 90.5 ng/L in Han, Gum, Yeongsan, and Nakdong Rivers, respectively. The major SMCs in Korean rivers was HHCB followed by MK, DPMI, and AHTN. The concentrations of HHCB and AHTN measured in our study were within the ranges of those reported for other countries. Seasonally, ΣSMC was the highest in winter. The next highest concentration was spring, autumn, and summer. These seasonal variations of SMCs concentrations are related to precipitation and temperature of each season. Similar with the results in water, HHCB (mean: 6.94 ng/g dw for sediment and 1999 ng/g lw for biota), AHTN (1.38 ng/g dw and 311 ng/g lw), and MK (0.04 ng/g dw and 245 ng/g lw) show at detectable concentrations in sediment and biota samples. An ecological risks of SMCs to aquatic organisms were assessed by comparing with PNEC value. The results showed that SMCs were negligible to pose an ecological risk to aquatic organisms in Korean rivers.
Sori Mok(목소리),Sunggyu Lee(이성규),Younghun Choi(최영훈),Junho Jeon(전준호),Hyo-Bang Moon(문효방) 환경독성보건학회 2021 한국독성학회 심포지움 및 학술발표회 Vol.2021 No.5
Farmed seafood provides many essential components, such as protein and unsaturated fatty acids, to Korean and global populations. Seafood safety is of great social and food concerns associated with health implications to humans. Harmful pesticides and some unintentional organic contaminants could be present in farmed species, their environments and diet. Suspect and non-target analysis is the reliable and efficient analytical tool for prioritization of contaminants of emerging concerns in environmental and biotic samples. In this study, suspect and non-target analysis (S/NTA) was conducted using gas chromatography coupled to time-of-flight mass spectrometer (GC/TOF) to identify contaminants of emerging concerns in various farmed seafood highly consumed in Korea. A total of 59 farmed seafood was collected from local fish markets and aquaculture farms as representative samples. Suspect analysis was performed with in-house library established for qualification and qualifier ions, isotopic ratios, and retention times of 310 pesticides. Thirteen pesticides as non-monitored or unregulated contaminants were detected in the representative samples. Species-dependent occurrences of organic contaminants were observed due to different diets and farming environments. The occurrence of non-monitored compounds in farmed seafood suggests unintentional contamination in freshwater and saltwater environments or diets. Our findings suggest a useful tool to identify and prioritize contaminants of emerging concerns for the management and safety of organic contaminants in farmed seafood.
재해피해액 산정을 위한 재해손실평가 인벤토리 구축 및 피해산정방법 연구
김혜령(Kim Haeryung),이성규(Lee Sunggyu),정은아(Jung Eunah),윤희연(Yoon Heeyeun) 한국방재학회 2018 한국방재학회논문집 Vol.18 No.3
기후변화로 인한 자연재해는 막대한 사회ㆍ경제적 손실을 발생시키고 있으며, 향후에도 지속적으로 피해를 발생시킬 것으로 예상되고 있다. 본 연구의 목적은 신속하게 재해손실금액을 추정하여 이에 따른 재난 대응 우선순위를 선정하기 위한 재해손실평가 인벤토리를 제안하는 것이다. 본 연구는 해외재해손실평가 모델(미국 HAZUS-MH와 PHRLM, 대만 TELES, 네덜란드 Standard method, 영국 MCM, 일본 FLEM)과 국내 다차원법(MD-FDA)을 문헌조사하고 공간자료 활용, 토지이용별 대응, 시설별 피해산정 방법을 고려하여 인벤토리 구조를 제안하였다. 또한 피해산정방법은 건축구조물과 건축구조물 외 자산, 사회기반시설, 농업지역, 산림지역으로 나누어 제시된 인벤토리 구조에 맞게 정리하였다. 본 연구에서 제안하는 인벤토리 구조를 고려하여 구체적인 자료를 지속적으로 구축해 나간다면, 향후 우리나라 실정에 맞는 재해피해자료 구축, 재해손실평가 모델의 개발과 정책 활용에 기본 인벤토리 구조로 활용될 것으로 기대된다. Dramatic global climate change makes unexpected natural disasters that create severe economic losses even though disaster preparedness implement sustainably. To quickly estimate disaster losses and then the priority of political response, there is a need to build the disaster damage assessment inventory in Korea. This study investigated inventory structures of South Korea and foreign natural disaster damage assessment models (HAZUS-MH and PHRLM in the US, TELES in Taiwan, Standard method in the Netherlands, MCM in the UK, FLEM in Japan). Also, we analyzed damage assessment methods considering the availability of spatial data, the response by land use and damage estimation methods. Also, the estimation methods are arranged according to the inventory structure divided into the building, other real assets, infrastructure area, agriculture area and forest area. If this inventory is used to build disaster data consistently, it will be possible to use as basic inventory structure for future damage assessment model development.