광주지역 먼지 특성에 관한 연구

서광엽,김승호,이경석,민경우,서희정,강영주,백계진,문용운,신대윤,Seo, Gwang-Yeob,Kim, Seung-Ho,Lee, Kyoung-Seok,Min, Kyoung-Woo,Seo, Hee-Jeong,Kang, Yeong-Ju,Paik, Ke-Jin,Moon, Young-Woon,Shin, Dae-Yewn 한국환경보건학회 2010 한국환경보건학회지 Vol.36 No.2

In this study, ambient particulate matter ($PM_{2.5}$ and $PM_{10}$) levels were measured and their chemical and physical properties were characterized. Two sites in Gwangju were sampled once a month from December 2008 to November 2009. The annual mean concentrations of $PM_{2.5}$ and $PM_{10}$ were $26.9\;{\mu}g/m^3$ and $46.3\;{\mu}g/m^3$, respectively, in Nongseongdong and $26.1\;{\mu}g/m^3$ and $44.8\;{\mu}g/m^3$, respectively, in Duam-dong. $PM_{2.5}$ levels were 1.8 times higher than the USA Environmental Protection Agency (EPA) national ambient air quality standard for $PM_{2.5}$ ($15\;{\mu}g/m^3$). The average $PM_{2.5}/PM_{10}$ ratio of 0.58 suggested that $PM_{2.5}$ is a significant component of the ambient particle pollution. The order of concentration of metallic elements in $PM_{2.5}$ and $PM_{10}$ was Si > Al > Fe > Zn > Pb > Cu > Mn. Cd was not detected. The earth crustal enrichment factors for Cr, Cu, Pb and Zn in $PM_{2.5}$ were higher than those in $PM_{10}$. When the earth crustal enrichment factors for Cr, Cu, Pb and Zn were higher than 10, this suggested influence from anthropogenic sources. The soil contribution ratios for $PM_{2.5}$ and $PM_{10}$ were 11.3% and 16.4%, respectively, and were higher in the fall and winter. Anions (${SO_4}^{-2}$, ${NO_3}^-$, and $Cl^-$) comprise 28.7% of $PM_{2.5}$ and 21.4% of $PM_{10}$. The correlation coefficient of Zn-Fe, Mn-Cu, Fe-Cu and Fe-Mn in $PM_{2.5}$ was high in the sampling sites, and metallic elements were primarily from anthropogenic sources such as fuel combustion and vehicle emissions.

2000년-2009년 광주 광역시 지역의 급성설사환자의 분변에서 분리한 살모넬라 균주에서의 항생제 내성률 조사

김태순,김민지,김선희,서진종,기혜영,정재근,김은선,문용운,하동룡,김민경,임숙경,남향미,Kim, Tae Sun,Kim, Min Ji,Kim, Sun Hee,Seo, Jin-Jong,Kee, Hye Young,Chung, Jae Keun,Kim, Eun Sun,Moon, Yong Woon,Ha, Dong Ryong,Kim, Min Kyeong,Lim, Suk The Microbiological Society of Korea 2013 미생물학회지 Vol.49 No.2

지난 2000년부터 2009년까지 10년간 광주광역시 지역의 급성설사환자로부터 분리한 총 596개의 살모넬라균주에 대하여 총 16종의 항생제에 대한 감수성 검사를 실시한 결과, 내성빈도가 가장 높았던 약제는 ampicillin (43%), tetracycline (35.9%), nalidixic acid (31.5%), 그리고 chloramphenicol (26.2%) 순으로 나타났다. 혈청형 간에 항생제 내성률에 차이가 있었는데 S. Enteritidis와 S. Typhimurium이 각각 가장 높은 내성률을 보인 약제는 ampicillin (51.1%)과 tetracycline (77.9%)이었다. 총 89가지 내성패턴이 관찰되었으며, 26% (155/596)의 살모넬라 분리주는 검사한 16가지 약제에 모두 감수성을 보였다. 약 21% (127/596) 및 15% (87/596)의 분리주는 각각 한 개 및 두 개의 약제에 내성을 나타냈다. 그 외의 살모넬라 분리주(227/596, 38%)는 세가지 이상의 약제에 내성을 나타냈다(다제내성균). 다제내성균이 가장 높은 비율로 나타난 혈청형은 S. Paratyphi B (76.5%), S. Typhimurium (58.2%), 그리고 S. Enteritidis (40.2%)의 순이었다. 가장 흔한 다제내성패턴은 ampicillin-chloramphenicol-nalidixic acid-ticarcillin (36/227, 15.8%)이었으며 이러한 패턴을 보였던 다제내성균의 대부분(35/36, 97.2%)이 S. Enteritidis이었다. Antibiotic susceptibility was examined for 596 Salmonella isolates from patients with acute gastroenteritis during 2000-2009 in Gwangju area in South Korea. Of 16 antibiotics tested, ampicillin resistance (43%) was the most commonly observed resistance among the 596 Salmonella sp. isolates, followed by tetracycline (35.9%), nalidixic acid (31.5%), and chloramphenicol (26.2%). Antibiotic resistance varied among serotypes: The highest resistance of S. Enteritidis and S. Typhimurium was to ampicillin (51.1%) and tetracycline (77.9%), respectively. A total of 89 resistance patterns were observed, and 26% (155/596) of Salmonella isolates were susceptible to all antibiotics tested in this study. About 21% (127/596) and 15% (87/596) of the isolates were resistant to one and two antibiotics, respectively. The rest of Salmonella isolates (227/596, 38%) were resistant to three or more antibiotic agents. The highest multi-drug resistance (MDR) was observed in serotype S. Paratyphi B (76.5%), followed by S. Typhimurium (58.2%), and S. Enteritidis (40.2%). The most common resistance pattern of MDR isolates was ampicillin-chloramphenicol-nalidixic acid-ticarcillin (36/227, 15.8%), most of which (35/36, 97.2%) were S. Enteritidis.

광주지역 비상급수 항목별 상관성 및 수질특성 연구

김연희 ( Yeon Hee Kim ),고영춘 ( Young Chun Ko ),문용운 ( Young Woon Moon ),박종태 ( Jong Tae Park ),김동수 ( Dong Su Kim ) 한국환경분석학회 2006 환경분석과 독성보건 Vol.9 No.3

작두콩 추출물의 화학적 특성 및 DPPH 라디컬 소거능

김종필(Jong-Pil Kim),양용식(Yong-Shik),김진희(Jin-Hee Kim),이향희(Hyang-Hee Lee),김은선(Eun-Sun Kim),문용운(Yong-Woon Moon),김진영(Jin-Young Kim),정재근(Jae-Keun Chung) 한국식품과학회 2012 한국식품과학회지 Vol.44 No.4

본 연구에서 추출 용매의 선택은 작두콩과 대두, 서리태의 추출 수율과 실험의 용이성 등을 고려하여 메탄올을 사용하여 실험을 진행하였다. 작두콩의 화학적 특성을 알아보기 위해 일반성분 중 수분, 회분, 조단백질, 조지방 실험을 하였으며, 이 중 조지방에서 서리태, 대두와는 다른 작두콩만의 특징을 찾을 수 있었다. 작두콩의 조지방 함량은 1.2%로 서리태와 대두의 조지방 함량 16.1, 16.5%와 비교해 볼 때 매우 낮음을 알 수 있었다. 이 낮은 조지방 함량으로 인해 비극성 유기용매 헥산이나 에틸아세 테이트 등에서 추출 수율이 서리태나 대두에 비해 낮게 나타났다. 구성아미노산은 함량과 구성비율을 실험하였다. 그 결과 Histidine의 구성비율이 서리태(2.9%)나 대두(3.0%)와 비교해 볼때 9.2%로 상대적으로 높은 구성비율을 나타냈다. 콩에서 대표적인 항산화활성 물질로 알려진 이소플라본은 작두콩에서 검출 되지 않았다. 작두콩과 대두, 서리태의 비타민 실험결과는 모두 비타민 C의 함량이 비타민 A의 함량보다 높게 검출되었다. 무기질 함량 실험에서는 작두콩과 대두, 서리태에서 10가지 무기질 중 칼륨, 칼슘, 마그네슘의 함량이 높게 나타났다. 총 폴리페놀은 대두 1,165.7 mg/100 g, 서리태 1,298.6 mg/100 g, 작두콩 1,152.0mg/100 g으로 서리태 보다는 적지만 대두와는 유의적 차이를 보이지 않았다. 총 플라보노이드는 대두 71.8 mg/100 g, 서리태 97.5mg/100 g보다 작두콩에서 유의적으로 높게(493.2 mg/100 g) 나타났다. DPPH 라디칼 소거활성 결과를 토대로 SC<SUP>50</SUP> 값을 구한 결과 α-tocopherol(8.3 μg/mL)과 대등한 13.1 μg/mL로 항산화활성이 높게 나타났으며, 농도 의존적으로 활성이 증가하고 있음을 알수 있었다. 이상의 결과 같은 콩과의 식물이지만 대두나 서리태와는 다른 화학적 특성을 가지고 있고 높은 항산화활성을 갖는 작두콩의 식품이나 건강기능식품으로서의 활용가치를 확인할 수 있었고, 항산화활성 물질의 분리 등 더 많은 연구가 필요할 것으로 생각된다. We investigated the chemical properties and antioxidant activities of sword bean (SWB) and compared it to soybean (SB) and black soybean (seoritae, BSB). The value of vitamin C, vitamin A, crude fat, and crude protein in SWB was 25.5, 0.37 mg/kg, 1.2, and 25.6%, respectively. The crude fat content (1.2%) in SWB was very low in comparison with those of SB (16.5%) and BSB (16.1%). In 16 free amino acids investigated, the histidine content (9.2%) was high in SWB, followed by SB (3.0%) and BSB (2.9%). Total flavonoid content of SWB (493.2 mg/100 g) was significantly higher than those of SB (71.8 mg/100 g) and BSB (97.5 mg/100 g). Total polyphenol content of SWB (1,152.0 mg/100 g)was not significantly different from that of SB (1,165.7 mg/100 g) but lower than that of BSB (1,298.6 mg/100 g). DPPH radical scavenging activity (SC<SUP>50</SUP>, 50% scavenging concentration) of SWB was 13.1 μg/mL, whereas that of positive control(α-tocopherol) was 8.3 μg/mL.

광주지역 지하수 성분분포 특성에 관한 연구

김동수 ( Dong Soo Kim ),김연희 ( Yun Hee Kim ),윤욱 ( Uk Yun ),백계진 ( Kye Jin Paik ),문용운 ( Young Woon Moon ) 한국환경분석학회 2010 환경분석과 독성보건 Vol.13 No.2

The analysis of groundwater was carried out at 127 sites of Gwangju in 2005. The result of analysis for major anion contents showed chloride > sulfate > nitrate-nitrogen > fluoride and the one for major cation contents calcium > sodium > magnesium > potassium > ammonium. Correlation between the hardness of the groundwater and chloride, sulfate and total solids was carried out. Their correlation coefficients were 0.44, 0.30 and 0.91, respectively. This correlation coefficients were similar to other regions such as Seoul, Gangwon and Incheon. A correlation coefficient was 0.62 between nitrate-nitrogen and chloride and was 0.35 between chloride and sulfate.

무등산 약수터의 강우 전후 수질특성

이윤국 ( Youn Goog Lee ),박옥현 ( Ok Hyun Park ),안상수 ( Sang Su An ),김연희 ( Yun Hee Kim ),김종민 ( Jong Min Kim ),배석진 ( Seak Jin Bae ),백계진 ( Kye Jin Paik ),문용운 ( Young Woon Moon ) 한국환경분석학회 2011 환경분석과 독성보건 Vol.14 No.3

This study was performed to investigate the quality of spring water during the rainy periods in Mudeung mountain, in April, May, July and August 2010. The variation of physicochemical items such as pH, TDS, NO3-N, Cl-, SO4(2-) was not signigicant and the concentration at each sites satisfied with drinking water guideline except that of turbidity. The content variation of minerals like Ca2+, Mg2+, K+, Na+ showed generally stable during the rainy periods. Even though a photo catalyte sterilizer was used, total coliforms and fecal coliforms were detected in every sample collected, except for the one from Neutjae. That is why the sterilizing facility is exposed to many environmental variables such as insolation and rainfall. According to the distribution of species, at Jungmeorijae, total coliforms proliferate because of fecal contamination. However, at Neutjae, total coliforms were caused by plant, soil and water, rather than fecal.