A5100618700- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Microbial Community Ecology and Physiology
- Isotope Analysis in Ecology
- Environmental Toxicology and Ecotoxicology
- Agriculture, Soil, Plant Science
- Animal Nutrition and Physiology
- Ecology and Conservation Studies
- Fish Ecology and Management Studies
- Genomics and Phylogenetic Studies
- Atmospheric chemistry and aerosols
- Environmental DNA in Biodiversity Studies
- Recycling and Waste Management Techniques
- Wastewater Treatment and Nitrogen Removal
- Analytical chemistry methods development
- Marine animal studies overview
- Identification and Quantification in Food
- Effects and risks of endocrine disrupting chemicals
- Algal biology and biofuel production
- Aquatic life and conservation
- Enzyme Production and Characterization
- Pesticide Residue Analysis and Safety
- Urban Heat Island Mitigation
- Food Industry and Aquatic Biology
- Aquatic Invertebrate Ecology and Behavior
National Institute of Environmental Research
2013-2024
University of Illinois Chicago
2024
Yonsei University
2012-2019
A Gram-negative, rod-shaped, aerobic bacterial strain, designated EBTL01 T , was isolated from activated sludge by using metabolites of microalgae Ankistrodesmus gracilis SAG278-2. Phylogenetic analyses based on 16S rRNA gene sequence showed that strain belongs to the family Verrucomicrobiaceae class Verrucomicrobiae and is related most closely Luteolibacter pohnpeiensis A4T-83 (95.5 % similarity) algae A5J-41-2 (95.2 %). The G+C content genomic DNA 56.3 mol% menaquinone MK-9 detected as...
A Gram-stain-negative, fusiform-shaped, facultatively anaerobic bacterial strain, designated EBTL04(T), was isolated from activated sludge using algal metabolites and taxonomically characterized through polyphasic investigation. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain EBTL04(T) belongs to family Verrucomicrobiaceae, class Verrucomicrobiae, is closely related Prosthecobacter dejongeii DSM 12251(T) (98.6 % similarity), fusiformis ATCC 25309(T) (97.9 %),...
A Gram-reaction-positive, rod-shaped, non-spore-forming bacterium (strain 2C1-5(T)) was isolated from activated sludge of an industrial wastewater treatment plant in Daegu, South Korea. Its taxonomic position investigated by using a polyphasic approach. On the basis 16S rRNA gene sequence similarity, closest phylogenetic relatives were type strains Nocardioides nitrophenolicus (98.6 % similarity), N. kongjuensis (98.5 %), caeni (98.4 simplex (98.3 aromaticivorans (98.1 %) and ginsengisoli...
Jangho Leea, Soo Yong Ki-Wan Parka, Hyun-Hee Limb & Ho-Sang Shinc*a Natural Environment Research Division, National Institute of Environmental Research, Incheon, Republic Koreab Drug Abuse Center, Kongju University, Kongju, Koreac Department Education, Korea
This study assessed the distribution of microplastics (MPs) in gills, intestines, and muscles common carp (Cyprinus carpio), one main fish species consumed by humans living lower regions Han River South Korea. In total, 891 MP particles were detected 15 carps, with an average 59.4 ± 45.5 particles/specimen, indicating severe contamination. The predominant form was fragment (86%), size range 0.02–0.10 mm. Thirty muscle samples (n = 10), primarily sizes < 0.1 mm (89%). most types polymers...
DDTs of Black-tailed Gull (Larus crassirostris) eggs laid on Baengnyeongdo, West Sea Korea was analyzed to compare the concentrations depending an egg-laying order. The first-laid had higher values in biometrics (length 63.98 ± 0.61 mm, t = 7.6, p 0.01; width 44.83 0.17 3.2, 0.05; weight 67.29 1.20 g, 2.6, 0.08) than second-laid 62.33 0.41 43.52 0.20 and 62.21 0.65 g). p,p’-DDE which only determined this analysis were not significantly different between first (mean standard error, 218.4 45.3...
본 연구에서는 환경오염 모니터링 지표종인 집비둘기(Columba livia)의 생체조직 내 중금속 축적 특성을 파악하기 위해 국가환경시료은행 자체 지점(한강공원, 함평공원)에서 채집된 집비둘기 시료를 분석하고, 집비둘기를 포함한 국내외 조류 총 17종의 연구 자료를 검토하여 분포특성을 고찰하였다. 유해 중금속인 카드뮴은 한강공원과 함평공원 모두에서 신장에 가장 높은 축적농도비율을 보였고, 사례와 기타 사례 34개 중 31개에서도 조류종과 상관없이 거의 대부분 신장이 축적농도 비율을 나타냈다. 납은 뼈가 나타냈으며, 기존 연구사례 30개 17개에서 뼈에 다음으로 신장(10개 사례), 간(3개 사례) 순으로 나타났다. 따라서 납의 주요 조직은 뼈라고 볼 수 있다. 아연은 한강공원에서 간에 함평공원에서는 보였다. 16개 13개에서는 간이 차지하였다. 이상의 결과 등을 중금속의 생화학적 축적특성(뼈 생성과정에서 납-칼슘의 경쟁관계, 흡착 단백질(메탈로치오네인)의 역할 등)과 관련하여...
The roles of man-made weirs were well-known as flooding control in summer monsoon, but the function wintering habitat for water birds not revealed. This study examined effects on distribution Tancheon Stream, Korea, with a focus freeze-thaw process. Data collected during January to February 2003 included thawed surface ratios, depths, sandbar areas, and bird under different weather conditions. analysis revealed strong positive correlation between areas front weir’s drop structures abundance...
Urbanization is transforming landscapes globally, altering environmental conditions that affect ecosystem functioning, particularly in urban areas where trees are crucial for regulating microclimates, improving air quality, and sustaining biodiversity. This study investigates the differences tree leaf structure morphology suburban sites Chicago Metropolitan Region. The functional traits of Norway Maple Little - leaved Linden were studied three locations summer 2023: an park (University...
집비둘기는 도시지역에서 환경오염물질의 생물축적 모니터링을 위한 지표종으로 알려져 있으며, 집비둘기 알은 생물 자체를 죽이지 않고도 생물축적의 경향을 모니터링할 수 있는 시료로서 유용하다. 하지만 유기 오염물질 축적은 잘 되는 반면, 납, 카드뮴 같은 특정 중금속은 저농도로 축적되는 특성이 있기 때문에 중금속에 대한 적절한 위해 대체 시료의 연구가 필요하다. 이에 본 연구에서는 집비둘기의 세척깃털을 이용하여 중금속 축적 특성을 연구하였고, 모니터링 시료로서의 가능성을 검토하였다. 도시지역인 서울 한강공원과 농촌지역인 함평군 함평공원을 대상으로 2013년 4월~5월에 개체 포획 및 알 채집을 실시하였고, 생체 조직, 세척깃털, 알의 5종(Pb, Cd, Total Cr, Ni, As)에 농도를 분석하였다. 5종의 조직 내 보면, 납(Pb)과 카드뮴(Cd)은 나머지 3종(Total 비해 축적이 두드러지게 높게 나타났다. 특히, 납은 다른 지역 간 비교에서도 두드러진 농도 차이를...