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소형방출챔버를 이용한 방향제의 휘발성 유기화합물 방출특성에 관한 연구
정영림,박현희,오윤희,김순근,손종렬,김선화,유영재,배귀남,김만구,Jung, Young-Rim,Park, Hyun-Hee,Oh, Youn-Hee,Kim, Soon-Geun,Sohn, Jong-Ryeul,Kim, Sun-Hwa,Yu, Young-Jae,Bae, Gwi-Nam,Kim, Man-Goo 대한환경공학회 2011 대한환경공학회지 Vol.33 No.3
소형방출챔버를 이용하여 반응조건(시료량, 온도, 환기횟수)에 따라 방향제에서 방출되는 휘발성 유기화합물의 배출특성을 조사하였다. 시료부하량($1.4{\sim}551.0g/m^2$)에 따라 방향제에서 방출되는 TVOC 방출량은 방출시험 5시간 후 $0.7{\sim}64.4mg/m^2{\cdot}hr$로 나타났다. Limonene, ${\alpha}$-pinene과 linalool 등 방향제에서 방출된 주요 휘발성 유기화합물은 온도와 환기횟수가 클수록 방출량이 증가한 것으로 나타났다. 이들 연구결과는 방향제와 같은 생활용품의 오염물질 방출시험방법 및 방출기준을 정립하기 위한 기초자료로 활용될 것으로 생각된다. This study investigated the emissions characteristics of air freshener using small emission chamber method. The emission of VOCs from air freshener were determined in the small chambers in the temperature (25, $30({\pm}1)^{\circ}C$), relative humidity ($50{\pm}5%$), ventilation rate (0.3, 0.5, ($0.8({\pm}0.005)/hr$), and sample loading factor ($1.4{\sim}551.0g/m^2$) in this study. The emission tests from air freshener for sample loading factor resulted in TVOC emission rates of $0.7{\sim}64.4mg/m^2{\cdot}h$ after 5 hours. For most target VOCs such as limonene, ${\alpha}$-pinene and linalool, higher temperature and ventilation rate levels exhibited increased emission rates.
박현희(Hyun-Hee Park),오윤희(Youn-Hee Oh),이희관(Hee-Kwan Lee),우완기(Wan-Gi Woo),손종렬(Jong-Ryeul Sohn) 한국환경관리학회 2010 環境管理學會誌 Vol.16 No.2
This study was conducted to examine the characteristics of indoor air quality(IAQ) in public facilities from July 2010 to November 2010 in Incheon city. The measured indoor air pollutants are PM₁?, CO, CO₂, formaldehyde(HCHO) and TBC, the regular standard polltants of IAQ management law established by ministry of environment in Korea. As the result, the concentration of indoor air pollutants such as CO, HCHO and TBC was less than the regular standards. However, Concentration of PM₁? in child care facility and CO₂ in silver town and libraries were higher than regular standards. The public facilities of this study were not exceed each regular standards except PM₁? and CO₂. But, the child care facilities and silver town is classified as sensitive facilities that was investigated higher levels of indoor air pollution. Accordingly, it will be necessary to manage the PM₁? and CO₂ according to target facilities such as the child care facilities and silver town.
지하철 역사 승강장의 PSD 설치에 의한 미세먼지 감소 효과
손종렬(Jong-ryeul Sohn),정영림(Young-rim Jung),박현희(Hyun-hee Park),오윤희(Youn-hee Oh),최원(Won Choi),김순근(Soon-geun Kim) 대한환경위생공학회 2009 대한환경위생공학회지 Vol.24 No.4
The most principal approach to improve indoor air quality(IAQ) of subway was to examine the fine particulate(PM-10) from the emission sources. Therefore, this study was carried on the investigation the fine particulate for comparison with the removal efficiency of PM-10 in divided the PSD(Platform Screen Door) and Non-PSD subway station from July, 2007 to May 2008. In the monitoring results, the range of PM-10 concentration of Non-PSD station was 44.6∼116.5㎍/㎥ and the range of PM-10 concentration of PSD station was 23.9∼81.1㎍/㎥. And then the range of PM-2.5 concentration of Non-PSD station was 17.4-56.6㎍/㎥, and then the range of PM-2.5 concentration of PSD station was 17.9∼34.4㎍/㎥. In comparison with the results of the PSD and Non-PSD subway station, we found that the PM-10 removal efficiency of PSD was 30-40%. In conclusion, the PSD will be applied the effective facilities of decreasing PM-10 in subway station in Korea.
이근문,오윤희,오강섭 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.2
Objectives : Disabilities in patients with panic disorder are well known for their acute and severe anxiety symptoms. Disabilities in patients with social phobia are not often rewgnied because symptoms are misattributed to simple shyness. We compared the severity and areas of disabilities among social phobia and panic disorder patients. Methods : The study participants were 53 patients with social phobia and 55 patients with panic disorder, diagnosed by MINI-Plus (Mini International Neuropsychiatric Interview-Plus) and SDS (Sheehan disability scale). Results : Compared with panic disorder patients, the patients with social phobia showed significantly greater impairments in work and social subscales of SDS. However, the home disability subscale scores of the patients with panic disorder were higher than the patients with social phobia. The general disabilities and GAF (General Assessment Functioning) scores were not different signigicantly. Comorbid cases have shown to induce more dysfunctions in work and social areas, except home and leisure areas, irrespective of diagnoses. Conclusion : Overall disabilities in patients with social phobia and panic disorder were not different significantly. But the disabilities were different accordiny to the areas, and the differences correlate with the specific symptoms.