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국내 다중이용시설에서의 PM2.5와 PM10 농도분포 특성
원수란,임정연,심인근,김은주,최아름,한진석,이우석 한국실내환경학회 2012 한국실내환경학회지 Vol.9 No.3
The aim of this study is to analyze the distribution of particulate matters including PM2.5 which is known for severe adverse health effect than PM10 in public facilities. The total 40 public buildings are investigated in this study and they are classified into 11 sub-groups as follows : child-care centers, medical centers, libraries, museums, bus terminals, ports, airports, railway terminals, subway stations, large-scale stores, and indoor parking lots. The mean concentration of PM10 was 38.6㎍/㎥ and that of PM10 in all studied facilities were lower than the Ministry of Environment's control standards. The average concentration of PM2.5 was 27.2㎍/㎥ and that of PM2.5in 18 facilities were exceed the guideline of WHO (24h average value : 25㎍/㎥). The subway stations had the highest indoor level of particulate matters and the waiting area in bus terminals, railway terminals, indoor parking lots had followed in order. When comparing mean value of I/O ratio of PM10, the only I/O ratio of subway stations were greater than one. In the case of PM2.5, however, the average concentrations of PM2.5in indoors of subway stations, bus terminals, and indoor parking lots were higher than those of PM2.5 in outdoors. The mean concentration of PM10 and PM2.5 were gradually increased between 6 A.M and 10 A.M and after 6 P.M in most of target buildings with increasing the number of users in thest facilities.
조리시 발생되는 입자상 및 가스상 오염물질의 특성-육류와 생선구이를 중심으로
원수란,지현아,권명희,황은설,이정섭,심인근 한국환경분석학회 2019 환경분석과 독성보건 Vol.22 No.4
Various pollutants are emitted and released during cooking, smoking, cleaning, and building materials in indoor environments. Indoor air quality management in kitchens is important because a considerable amount of pollutants are produced by the high temperature and combustion conditions associated with the cooking process. In this study, the correlation between the concentration characteristics of several indoor pollutants generated during cooking, and the detected concentration of these pollutants is investigated based on the ventilation pattern. When liquefied natural gas was burned for one hour without ingredients, the levels of CO and NO2 were 6-7 times higher compared with the background concentration due to incomplete combustion. When fish was roasted, PM2.5 concentration was approximately three times higher compared with when meat was roasted. However, the level of gaseous pollutants was higher for the latter. Based on the evaluation of the ventilation effect during the operation of the range hood, the concentration of particulate and gaseous pollutants (CO, NO2) was approximately ten times lower compared with the off state. In addition, when the hood is turned off, the time taken to decrease the concentration in the pre-cooked state is five hours or more, indicating that ventilation is necessary for indoor cooking.
아파트에서 실내공기 중 휘발성유기화합물의 농도분포 특성연구
원수란,권명희,지현아,심인근 한국냄새환경학회 2016 실내환경 및 냄새 학회지 Vol.15 No.3
About half of the South Korean population lives in the three major metropolitan areas, which are Seoul, Kyeonggi and Incheon. Among this group, more than 50% live in apartments. In this study, the relationship between the concentration of indoor VOCs and environmental factors was investigated in metropolitan apartments in the occupation stage. The maximum concentration of TVOC (total volatile organic compounds) was monitored in spring season. Among the identified VOCs, toluene was present in the highest amount, followed by terpene, aldehyde and hydrocarbon. Due to the specific indoor sources, the I/O ratio of terpene (e.g. d-limonene, α-pinene, and β-pinene) was relatively higher than that of the others. The construction year and length of residence were revealed as the environmental factors having the greatest influence on the concentration of indoor benzene, toluene, ethylbenzene, xylene, styrene and hydrocarbon, and the relationship was statistically significant. The floor and size of the apartment influenced the levels of indoor nonanal. The relationships between individual VOCs showed highly positive correlations that are statistically significant. Through the relationship study, it was found that factors including newly built apartment, short period of time after moving in, high floors and small floor area were the main factors inducing an increased concentration of indoor VOCs in apartments.
원수란,심인근,권명희,이우석,권오상 한국실내환경학회 2014 한국실내환경학회지 Vol.13 No.2
The indoor air quality in public facilities has been well maintained as consciousness of facility owners is improved. However, the risk of PM2.5 and heavy metals in particulate matters have not been highlighted until now. So we investigated the particulate matters on major public transportation facilities such as subway, port and bus terminals. And we tried to figure out the characteristics of each facility groups by comparing the mass and metal concentration between PM2.5 and PM10. As a results, the correlation between concentration of indoor particulate matters and that of outdoor particulate matters shows higher strength in the case of bus terminals and port platforms than subway platforms. However the total concentration of particulate matters and heavy metals were much higher in subway platforms than that of terminals and port platforms.
생활환경 취약주택과 일반주택의 실내공기 오염물질 특성 비교
원수란,심인근,지현아,권명희 한국냄새환경학회 2016 실내환경 및 냄새 학회지 Vol.15 No.3
The indoor air quality of residences has been regulated by designating recommended standard levels of pollutants for newly built apartments. But as of yet, no related guideline has been established for dwellings that are already occupied. From a sociological viewpoint, the gap between the rich and poor has been gradually increasing with economic development, and this has extended to the diversification of house types and living environments. Specifically, people who have the lowest income levels may live in temporary houses such as vinyl greenhouses and shanty houses, and their living environment is mostly inadequate as a result. In this study, we surveyed the indoor air quality in normal and socially vulnerable houses after the occupation stage and tried to figure out the main factors influencing indoor air quality. Airborne fungi are detected more frequently in lower living standard houses. Put another way, the concentration of airborne bacteria and the volatile organic compound levels are much higher than in normal dwellings.