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가정의 가스레인지 사용에 따른 실내공기 오염물질의 특성 연구
신은상 동남보건대학 2003 論文集-東南保健大學 Vol.21 No.2
Based on the test results concerning indoor air pollutant level in a house which use a gas range in the kitchen, the conclusions are as follows. 1. The results from measuring indoor air pollution in a house indicate that fine particles of NO₂ are the most serious factor of air pollution. The density of polluted air when the fan is off is 1.5 times and 6.9 times higher than when it is on. It implies the strong necessity of ventilation. 2. Relating to NO₂ concentration and the occurrence amount of particles, the total amount is increased along with the raise of LPG/LNG spending', on the other hand, the amount of particles per litter has decreased. This implies that it is more efficient to slowly increase the flux of fuels rather than keep a steady flux level for a long time. 3. After 20 minutes of buming the fuels with no fan for ventilation, indoor air around the gas range is contaminated over an average value of one hour frame in the standards of underground indoor air quality. 4. NO₂ and fine particles less than 0.5pm have positively significant correlations. However, the correlation among NO₂, CO and SO₂ is not clarified.
서울지역의 황사발생시 호흡성 분진 중 미량원소의 특성 평가
신은상,선우영 대한환경위생공학회 2002 대한환경위생공학회지 Vol.17 No.1
This research was carried out using Anderson air sampler which were set up on the roof of the Engineering College of Konkuk University at Hwayang-Dong, Kwangjin-Gu, Seoul from Aug. 1992 to foul. 1999. The results are as follows: The major component of yellow sand is soil particles based upon the observation that particles ranging from $3.3~7.0{\mu}m$ occupy 36~63%. It is certain that the increase of fine particles of respirable dust during yellow sand phenomenon in Seoul area affects the human body. The trace metals from natural sources like Al, Ca, Fe, K, Na, and Si show larger mass median diameter(MMD) values during yellow sand phenomenon than in normal situations while the values of MMD for Mn and Pb rarely changes. Noticeably, the changes in value of MMD of water soluble elements like ${NO_3}^{-}$ and ${SO_4}^{2}$ are 2.3 and 6.6 times higher during the yellow sand phenomenon compared to normal situations, respectively. This fact is regarded as decisive evidence showing that ${NO_3}^{-}$ and ${SO_4}^{2}$ in the air are attached to yellow sand and move together.
신은상,여현구,조기철,천만영,Shin Eun Sang,Yeo Hyun-Gu,Cho Ki-Chul,Chun Man-Young 한국환경보건학회 2006 한국환경보건학회지 Vol.32 No.1
Results for the concentrations of total polychlorinated biphenyls (total PCBs) and the PCB profile with different types of leaves from four coniferous trees (pine needles) at the same sampling site are presented. Concentrations of total PCBs detected in pine needles were very similar among them regardless of their different types of leaves, which means a possibility for bio-monitoring regional contamination of PCBs. Correlation coefficients(r) of PCB congeners between pine needles were very significant (r>0.97, p<0.001), which showed that PCB congener's patterns of each pine needle were similar. Profiles of PCBs detected in pine needles showed correlation with gaseous phase PCBs in air, otherwise not with particle phase PCBs in air. Therefore, it was estimated that dry gaseous deposition was a principal pathway of PCBs accumulation in pine needles. In addition, although we analyse a different types of leaves in pine needles at the same region, they can be used to identify regional contamination patterns of PCBs for larger regions.
申殷相,黃相容,金鍾五,洪宗淳 동남보건대학 2002 論文集-東南保健大學 Vol.20 No.2
The purpose of this study is to investigate the concentration patterns of air pollution in public library and university libraries, and to evaluate indoor air quality in each library. The measurements and questionnaire survey of indoor air environment were performed to investigate the indoor air pollution level of the reading rooms. As a result, the profiles of air temperature, air humidity, air-flow, WBGT, the concentration of carbon dioxide(CO₂), carbon monoxide(CO), ozone(O₃), total suspended particles(TSP) and other conditions for physical comfort for the users were analyzed and presented. Mean temperature of this investigation was higher than optimum temperature of indoor air quality and relative humidity was similar to indoor air standard. Mean concentration of CO and TSP showed 0.9±0.2 ppm, 65±27 ㎍/㎥ which was below in the standard of air quality. However, CO₂ concentration appeared 1.366±277 ppm that was about 1.3 times higher than the standard of indoor air quality except one university. Correlation coefficients between users and air pollutants showed significant difference for CO₂. no significant difference for CO. The results of questionnaires research for indoor air qualities had no significant correlations. This reason showed that there was no concern about indoor air quality relatively to thermal conditions for the users.
장기간에 걸친 도시 중 입자상물질 농도와 그 배경농도의 특성평가
신은상 東南保健大學 2007 論文集-東南保健大學 Vol.25 No.1
Natural background concentration of soil and sea salt particulate matter in the urban area was predicted on the basis of s ize distribution measurement and chemical analysis of Si, Al, Na + and Cl in aerosols.