• 제목/요약/키워드: Environment and public health

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푸른길 공원의 대기 환경 특성에 관한 연구 (Air Environmental Characteristics of a Greenway Park in Gwangju)

  • 민경우;이경석;박옥현;윤관주;김도술;박세일;정원삼;이대행;조영관
    • 한국환경보건학회지
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    • 제41권3호
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    • pp.171-181
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    • 2015
  • Objectives: This study aimed to survey the characteristics of air quality and meteorological conditions in a greenway park. Methods: We measured meteorological and health related factors, including noise, particulate matter ($PM_{10}$) and selected gaseous air pollutants at three locations in a greenway park and on a general roadside as comparison. The measurements were repeated four times from April to October 2014. Results: The average air temperature in the greenway park was $20.7^{\circ}C$ which was $1-2^{\circ}C$ lower than on the general roadside. The average $PM_{10}$ concentration in the greenway park was $85.0{\mu}g/m^3$, a level 2-3 times lower than that at the roadside. The noise level at the greenway site was 4.4 dB(A)- 23.0 dB(A) lower than at the roadside. The average CO, $CO_2$, $SO_2$ and NOx concentrations in the greenway park were lower than at the roadside. The average phytoncide and anions concentrations in the greenway park were higher than at the roadside. Conclusions: The urban forest of the greenway park may have some impact on air quality and meteorological conditions.

농협 서울축산물공판장 도축우에서의 Neospora caninum 혈청항체 양성률 조사 (Seroprevalence of antibodies to Neospora caninum in cattle at Seoul slaughtering center)

  • 김지은;손장원;양윤모;전해창;진경선;김규현;신방우;이정학
    • 한국동물위생학회지
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    • 제34권2호
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    • pp.179-185
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    • 2011
  • Neospora caninum is now recognized as one of the important causes of abortion in cattle worldwide, but there was no report on seroprevalence of antibodies to N. caninum in cattle at Seoul slaughtering center. Serum samples from 610 Korean indigenous cattle (Hanwoo) and 246 Holstein cattle from 452 farms located all over the country, Korea, were tested for N. caninum antibodies using a commercial enzyme-linked immunosorbent assay (ELISA) kit. Seven of 610 (1.1%) Hanwoo and 54 of 246 (22.0%) Holstein cattle were seropositive.

서울시 터널의 유해대기오염물질 농도변화 특성 분석 (Characteristics of Hazardous Air Pollutant Level in Road Tunnels in Seoul)

  • 박진아;이원영;김진아;김익수;김현수;정종흡;윤중섭;정권;엄석원
    • 한국환경보건학회지
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    • 제39권6호
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    • pp.541-549
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    • 2013
  • Objectives: We analyzed the characteristics of hazardous air pollutants (HAPs) in road tunnels in Seoul. Methods: Particle matter ($PM_{10}$), elemental carbon (EC), organic carbon (OC), and 16 species of polycyclic aromatic hydrocarbons (PAHs) in two road tunnels (NS tunnel and HJ tunnel) were sampled and analyzed from 2007 to 2011. Results: Levels of $PM_{10}$ and carbon ingredients which were mainly emitted from diesel-fueled vehicles showed a declining tendency in both road tunnels. PAHs levels in HJ were declining slightly while PAHs levels in the NS tunnel fluctuated considerably and showed an increasing tendency. Conclusions: These results suggested that the abatement project of diesel vehicle emissions by the Seoul metropolitan government from 2007 has had an impact on the reduction of DVE into the air, though there exist many things to consider for analyses.

건조에 따른 채소중 잔류농약의 경시변화 (Residual Patterns of Pesticides on Vegetables During Drying Process)

  • 남화정;곽영주;김철기;한영선;오세흥;장진섭;임수선;권성희;장승은;여은영;이은주;김순심;윤신원
    • 한국식품위생안전성학회지
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    • 제22권4호
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    • pp.300-305
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    • 2007
  • 본 연구는 취나물, 고춧잎, 열무를 대상으로 건조에 따른 procymidone, diazinon의 잔류량의 경시적 변화를 연구할 목적으로 수행되었다. 실내풍건 방법으로 건조하는 경우, procymidone, diazinon의 잔류량이 증가하지만 수분함량의 감량을 고려하여 보정하면 $10{\sim}83%$ 감소하였고, 열풍건조 방법으로 건조하는 경우도 농약 잔류량은 증가하여도 수분함량의 감량을 고려하여 보정하면 $44{\sim}71%$ 감소하였다. 이 결과에 의하면, 건조에 의하여, 수분 보정한 농약잔류량이 대부분 감소하므로 건조농산물을 판정함에 있어 단순히 신선농산물의 기준에서 수분함량의 감량을 고려하여 기준 적용할 것이 아니라 건조과정 중 농약잔류량에 영향을 미치는 여러 요인을 고려한 추가연구가 필요하다고 판단된다.

Phenolic compounds and antioxidant activity of berries produced in South Korea

  • Lee, Yongcheol;Lee, Jea-Kyoo;Kim, Jeong-Gon;Park, So-Hyun;Kim, Young-Eun;Park, Sung-Kyu;Kim, Moo-Sang
    • Journal of Applied Biological Chemistry
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    • 제63권4호
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    • pp.297-303
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    • 2020
  • Berries are rich sources of phenolic compounds, which are known to have health-promoting effects. In this study, phenolic compounds of seven popularly consumed berries were analyzed by HPLC-ESI-MS/MS. In addition, 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical and nitrite scavenging activities were investigated for comparison of the biological activity of the berry extracts. Chlorogenic acid was the major phenolic acid, which had the highest content in aronia, followed by blueberry. The rutin and isoquercetin contents were the highest in mulberry, followed by aronia, black raspberry, and blueberry. The anthocyanin content was the highest in black raspberry. Aronia showed the highest DPPH free radical and nitrite scavenging activities with the highest contents of total phenolics and proanthocyanidins.

Determination of Sulfur Dioxide in Herb Drugs

  • Ko, Suk-Kyung;Seung, Hyun-Jeung;Yu, In-Sil;Kim, Hwa-Soon;Park, Noh-Woon;Kang, Hee-Gon
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.103.1-103.1
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    • 2003
  • This study was carried out to investigate sulfur dioxide in herb drugs.(Puerariae Radix, Lycii Fructus, Platycodi Radix, Dioscoreae Rhizoma, Mori Radicis Cortex, Nelumbo Seed, Paeoniae Radix, Remotiflori Radix, Astragali Radix, Polygonatum Rhizome) Experimental subjects included 105 cases of 10 species of herb drugs collected in Kyung-dong market from December in 2001 to February in 2002. Sulfur dioxide was determined by Optimized Monier-Wiliams method. In 65 cases(61.9%) of the 105 cases, we detected $SO_2$ over 10mg/kg. (omitted)

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오메가-3 제품의 산화에 대한 안정성 조사 (Omega-3 Oxidation State of Fish and Algae Oil Supplements in South Korea)

  • 박건영;김영숙;김양희;신상운;조상훈;엄경숙;홍세라;윤미혜
    • 한국식품위생안전성학회지
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    • 제34권5호
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    • pp.480-488
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    • 2019
  • 오메가-3 제품의 안전성을 알아보기 위하여, 경기지역에 유통되는 20개의 fish oil과 algae oil을 원료로한 건강기능식품 오메가-3에 대하여 EPA와 DHA의 함량과 산화 정도를 조사하였다. 산가의 결과값은 0-2.9 mg/g으로 평균 및 표준편차는 $0.5{\pm}0.6$이며 CODEX/FAO의 기준 3.0 mg/g을 적용하였을 때 모두 적합하였으며, 과산화물가의 경우 2.6-14.1 meq/kg로 평균 및 표준준편차는 $5.5{\pm}2.9$이며, 기준 5.0 meq/kq을 적용하였을 때 20건 중 11건이 적합하고 9건이 기준을 초과하였다. 아니시딘가는 국제적인 기준을 20을 적용하였을 때 18건이 적합하였으며 2건이 기준을 초과하였다. 총 산화가는 기준 26을 적용하였을 때 16건이 적합하였으며 4건이 기준을 초과하였다. 오메가-3의 산화에 대한 안전성 확보를 위하여 새롭게 설정되어 3월부터 시행되고 있는 산가 및 과산화물가에 대한 기준 올해 11월 시행예정인 아니시딘가와 총산화가에 대한 시행은 매우 바람직하며 지속적인 감시를 통하여 산화로부터의 안전성 확보에 기여할 것으로 보인다.

서울지역 지하철역사 내 자판기 판매 음료현황 및 당류 함량 조사 (Survey of the current status of beverages sold from vending machines in subway stations in the Seoul metropolitan area, and their sugar content)

  • 김동규;이목영;김여숙;최수정;신재민;황영숙;윤은선;조남숙;김정헌;오영희;정권;곽지영;김다현;김은지;박솜이;양실비;조혜림;안령미
    • 분석과학
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    • 제29권6호
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    • pp.249-254
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    • 2016
  • 서울지역 지하철역사내 자판기에서 판매되는 음료현황 및 설문조사 결과, 자판기 진열음료 중 탄산음료의 비율이 36%으로 가장 높았고, 설문응답자들은 갈증해소를 위해 당류 함량이 많은 탄산음료와 이온음료를 구매하였다. 또한 다빈도 진열음료에 대한 당류 함량 분석결과, 탄산음료 1회 제공량에는 평균 30.4 g, 최고 50.1 g 으로 각설탕(3 g)으로는 평균 10개에서 최고 17개 분량의 당류가 있었다. 이는 세계보건기구의 1일 당류 섭취 권고기준 50 g의 평균 60 % 수준이었고, 일부 탄산음료는 한 캔으로도 권고기준을 모두 섭취하는 제품도 있었다.

서울지역에서 유통 중인 쇠고기와 돼지고기로부터 분리된 대장균과 장구균의 분리율 및 항생제 내성 (Isolation frequency and antimicrobial resistance of Escherichia coli & Enterococcus spp. isolated from beef & pork on sale in Seoul, Korea)

  • 김주영;박미애;김지은;채희선;박연재;손장원;양윤모;최태석;이주형
    • 한국동물위생학회지
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    • 제36권2호
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    • pp.111-119
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    • 2013
  • The aim of this study was to investigate the isolation frequency and antimicrobial resistance of Escherichia coli (E. coli) and Enterococcus spp. from domestic beef and pork on sale in Seoul, Korea. A total of 106 (10.4%) E. coli and 114 (11.2%) Enterococcus spp. from 635 domestic beef and 381 pork samples were isolated and examined for susceptibility to 15 and 11 antimicrobial agents, respectively. The most frequent antimicrobial resistance observed in E. coli isolates was to ampicillin (38.6%), followed by streptocmycin (34.9%) and tetracycline (32.0%). The most frequent antimicrobial resistance in E. faecium isolates was to erythromycin (53.8%) and rifampin (46.1%), and in E. faecalis isolates was to tetracycline (55.7%) and rifampin (55.0%). Among the isolates, multi-drug resistant (MDR) E. coli and Enterococcus spp. strains showing resistances to more than two antimicrobial agents tested were 10.4% and 11.2%, respectively. As a result, appropriate protocols for antimicrobial agents and strategies to reduce antimicrobial resistance will be needed in future.