This study was conducted to show the odor emission characteristics between the well maintained environment fundamental facility and the poorly maintained environmental facility. It also draws major components of odor emission based on facilities, stages, and suggest the proper way to reduce the level of odor for insufficient facilities. Insufficient facilities" air direct sensory and air dilution value levels are following: foodwaste ＞ livestock ＞ wastewater ＞ night-soil ＞ sewage. For the sewage and waste water facilities, the common characteristic of odor emission on each fundamental facility showed higher air dilution value in depositing reservoir and concentrator. And sulfur and aldehyde compounds came out to be the major odor causing components. In the case of night-soil and livestock facilities, the air dilution value was high in flow equalization tank and liquid erosion tank. And sulfur as well as ammonia component was the major malodorous substance. Foodwaste facility showed higher air dilution value than other facility, which sulfur and acetaldehyde compounds were acting as major malodorous substances.

The objective of this study was to estimate distribution of hazardous air pollutants and volatile organic compounds at diverse indoor areas in school. The indoor air samples were collected at 19 school in three different areas of southern Korea region from September to October 2009. The concentrations of PM-10 and formaldehyde in all sampling sites were below indoor air quality guideline of the Ministry of Education, Science and Technology. The CO₂ level and TBC (total bacteria count) were higher than the guideline for 4 sites and 12 sites, respectively. The concentration of TVOC for 23 sites exceeded the guideline. Also, TVOC level of metropolitan sampling sites were somewhat higher than small and medium-size city sampling sites. The concentration of indoor air pollutants affected by various conditions such as season, region, and indoor/outdoor environment. This study result shows that concentration of several pollutants such as CO₂, TBC, and TVOC were higher than the guideline for some sampling sites. Therefore, it is necessary to manage indoor air quality and establish effective emission reduction strategies regard for characteristics of each school.

The aim of this study was to investigate the legally-designated malodorous compounds at the plant boundary areas of 5 plants expected to emit high odor intensities, as well as! complaint area at the Yeosu petrochemical industrial complex in Korea. The sampling was carried out during spring and summer of 2003 and 2006. The concentrations of ammonia, sulfur compounds (hydrogen sulfide, methyl mercaptan, and dimethyl sulfide) and aldehydes (acetaldehyde and propionaldehyde) emitted during 2006 were higher than those emitted during 2003, and the concentrations emitted during summer were higher than those emitted during spring at the plant boundary areas. It was thought that the concentrations of odorants in the complaint area had been directly influenced by the concentrations of odorants in the plant boundary areas as they showed similar patterns of concentration variations. While the concentration of TMA during 2006 was lower than during 2003 at the all sampling sites, the concentration of styrene during 2006 was higher than during 2003 at the all sampling sites. The sites showed high concentrationsof odorous compounds at the plant boundary area of the related chemical and petrochemical refinery plants.

The purpose of this study was to investigate the concentration of aldehydes from new apartments in three cities(Suncheon, Yeosu, and Gwangyang) of Chonnam region. The target apartments were within 3 months after the completion of construction. Aldehydes were sampled using 2,4-DNPH cartridge and analyzed by HPLC. Temperature and relative humidity were monitored continuously every one minute by digital temperature and hygrometer. As the concentration ratio of formaldehyde between back-up and front cartridge was 3.94 6.97%, the 2,4-DNPH cartridge method satisfied a breakthrough problem for the sample collection. The repeatability of retention time and peak area for HPLC were excellent as 0.5 and 1.5%, respectively. The upper floor of S apartment (16 pyong) showed the highest concentration of formaldehyde as 1,093㎍/㎥. The average concentration of formaldehyde was the highest in K apartment(52 pyong) as 1,045㎍/㎥. The average concentration of formaldehyde in S apartment(16 pyong) and C apartment(25 pyong) were 872.6㎍/㎥ and 737.5㎍/㎥, respectively. The I/O ratios of formaldehyde were 56.9 60.0(mean : 59.1), 37.9 43.3(mean : 39.8) and 18.3 29.3(mean : 23.3) in K, C and S apartment, respectively. Therefore, it is believed that the indoor concentration of formaldehyde was very serious in new apartment. From these results, it is important that building material which emit low indoor pollutant should be selected for new apartments. In addition, management program for indoor air, such as using an adequate amount of adhesives, should be considered and indoor optimum condition should be maintained in new apartments.

본 연구는 제7차 교육과정 고등학교 한문교과서를 대상으로 현토문의 문제점을 지적하고 그 개선안을 제시하고자 하였다.고등학교 한문교과서에는 현토문을 수록하였는데 문장의 의미를 정확하게 반영하지 못하고, 읽기에도 적합하지 않으며, 한문 본래의 틀을 유지하지도 못하는 문제점을 안고 있다. 심지어 현토문인지 국한문 혼용문인지 구분하기 어려운 부분도 있다. 이에 본고는 현토의 문제점을 體言用言尊稱의 오류 등으로 구분하여 고찰하였다.아울러 이러한 문제점의 해결 방안으로 휴지(休止)와 토(吐)의 조화를 추구할 것, 전통적으로 사용해온 토를 발전적으로 계승할 것 등 두 가지를 제안하였다.

The results of particulate matters level and heavy metal concentration, which surveyed in Gwang-Yang, Dang-Jin steel industry area, are as follows; The PM2.5, PM10 of exposure area are 22.3μg/m3, 40.4μg/m3 each in Kum-Ho dong, and 28.1μg/m3, 51.5 each in Jung dong. The PM2.5, PM10 of control area are 16.4μg/m3, 29.5μg/m3 each in Bonggang-myeon. The level is higher in exposure area than control area. In case of Dang Jin, the concentration of PM10 and PM2.5 is higher in exposure area than control area (PM2.5-20.4μg/m3, PM10-39.2μg/m3). The Pb level of Dang Jin area is higher in exposure area(0.13μg/m3) than control area(0.1μg/m3), and both Gwang-Yang and Dang-Jin area lower level than the Guideline level of Korea EPA.