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대기오염물질 개인노출 평가를 위한 시간/장소 조사방법의 고찰
이보람,반현경,장예림,이기영 한국환경보건학회 2016 한국환경보건학회지 Vol.42 No.5
Objectives: Time location data are critical for accurately estimating personal exposures. This review paperssummarized various measurement methods of time location pattern for air pollution exposure assessment. Methods: Forty manuscripts (papers, books and reports) were reviewed to comprehensively describe timelocation measurement methods. Results: This review included traditional methods such as time activity diary, questionnaire, observation, focusgroup and newly developed technical methods including global positioning system, web, radio frequencyidentification and ultrasound detection. Some research applied a combination of methods. Conclusion: Although various methods have been used to collect time location data, further development ofaccurate measurement methods for time location data is needed.
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이지영(),반현경(),이용일(),조기철(),고형범(),이기영() 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.1
Objectives: This study was conducted to determine the impact of aquariums on indoor air quality for improving humidity and reducing indoor air pollutants. Methods: An air-conditioning chamber was used to determine humidity increase by aquarium volume at three different temperatures (20 o C, 25 o C, 30 o C). Humidity increase was measured for 21 hours (20 o C) and 12 hours (25 o C, 30 o C) while placing five different volume of aquarium in the chamber. Concentrations of several volatile organic compounds and formaldehyde were measured after a known amount was injected into the chamber with and without an aquarium. Results: The humidity inside the chamber increased when the aquarium was inside the chamber. Humidity change was similar at 20 o C, 25 o C, and 30 o C, but slightly higher at higher temperatures. The bigger the aquarium volume, the higher was the humidity increase that occurred. Humidity increase by the aquarium was sufficient to increase indoor humidity in winter and negligible in summer. Concentrations of some water-soluble indoor air pollutants and formaldehyde were decreased with the aquarium inside the chamber. Conclusions: An aquarium could increase indoor humidity in winter, while the humidity increase is negligible in summer. An aquarium could decrease some water-soluble indoor air pollutants, including formaldehyde. This result implies that an aquarium may have positive effects on indoor environmental quality.
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센서를 이용한 이산화탄소와 미세먼지의 장기간 시간적인 변이를 활용한 어린이집의 실내환경수준 평가
김윤지,이세원,반현경,차상민,김근배,이기영 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.4
Objectives: The purposes of the study were to analyze the temporal variation of carbon dioxide (CO 2 ) and particulate matter (PM) in daycare centers and evaluate the appropriateness of the official test method of onetime measurement. Methods: Indoor air quality in 46 daycare centers in the Seoul Metropolitan Area was measured as specified in the official test method of Indoor Air Quality Management law. In addition, indoor air quality in the 46 daycare centers was measured over 37 days using a real-time monitor (AirGuard K). Results: The daily means of CO 2 and PM in the 46 daycare centers were 1042.74 ± 134.45 ppm and 67.60 ± 18.25 µg/m 3 , respectively. Indoor air quality in the daycare centers showed significant temporal fluctuation. Measurements for single days were significantly different from the 37-day average exposure. Relative error of short term exposure decreased with an increase in the number of sampling days. The noncompliance rate for CO 2 using the official testing method was 2.17%, and none exceeded the PM 10 standard of 100 µg/m 3 . With monitoring over 37 days, the daily noncompliance rate for CO2 was 50.4% and the daily noncompliance rate for PM was 13.8%. Conclusions: When the official test method evaluates the indoor air at daycare centers one day per year, the results may not represent actual indoor air quality over a longer period of time. Real-time monitoring devices could be an alternative for managing indoor air quality.
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어린이집에서 이산화탄소와 미세먼지의 장기간 시간적인 변이를 활용한 실내환경수준 평가
김윤지(Yoonjee Kim),이세원(Sewon Lee),반현경(Hyunkyung Ban),차상민(Sangmin Cha),김근배(Geunbae Kim),이기영(Kiyoung Lee) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.4
Objectives: The purposes of the study were to analyze the temporal variation of carbon dioxide (CO 2 ) and particulate matter (PM) in daycare centers and evaluate the appropriateness of the official test method of onetime measurement. Methods: Indoor air quality in 46 daycare centers in the Seoul Metropolitan Area was measured as specified in the official test method of Indoor Air Quality Management law. In addition, indoor air quality in the 46 daycare centers was measured over 37 days using a real-time monitor (AirGuard K). Results: The daily means of CO 2 and PM in the 46 daycare centers were 1042.74 ± 134.45 ppm and 67.60 ± 18.25 µg/m 3 , respectively. Indoor air quality in the daycare centers showed significant temporal fluctuation. Measurements for single days were significantly different from the 37-day average exposure. Relative error of short term exposure decreased with an increase in the number of sampling days. The noncompliance rate for CO 2 using the official testing method was 2.17%, and none exceeded the PM 10 standard of 100 µg/m 3 . With monitoring over 37 days, the daily noncompliance rate for CO 2 was 50.4% and the daily noncompliance rate for PM was 13.8%. Conclusions: When the official test method evaluates the indoor air at daycare centers one day per year, the results may not represent actual indoor air quality over a longer period of time. Real-time monitoring devices could be an alternative for managing indoor air quality.
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보건의료시설의 실내 예상 평균 온열감(PMV), 이산화탄소 농도, 소음도, 조도의 통합실내쾌적도(IEQh)를 통한 연간 실내 쾌적도 평가
이보람(Boram Lee),이대엽(Daeyeop Lee),반현경(Hyunkyung Ban),이세원(Sewon Lee),김규상(KyooSang Kim),이기영(Kiyoung Lee) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.3
Objectives: A hospital is a complex building that serves many different purposes. The indoor environment in a hospital plays a major role in patient well-being and the work efficiency of the hospital staff. This study was conducted to evaluate overall comfort in two major hospitals over the course of one year. Methods: Various indoor environmental conditions were measured in two general hospitals for one year (April 2014 to April 2015). Monitoring alternated between the hospitals at one month per respective monitoring session. The indoor air temperature, relative humidity (RH), mean radiant temperature and air velocity were measured in order to calculate the predicted mean vote (PMV). Carbon dioxide concentration, noise level and illumination level were concurrently measured and applied to the overall IEQ acceptance model for the hospitals (IEQh). Results: The IEQh at the two general hospitals was different at five spaces within a building. The IEQh for summer and winter were significantly different. Real-time IEQh demonstrated that indoor comfort was affected by the hospital s operating hours due to operation of the HVAC system. The percentage of indoor comfort in the hospitals was higher using PMV than IEQh. Conclusion: IEQh in the hospitals was different at locations with different purposes. Indoor comfort assessment using IEQh was stricter than with PMV. Additional research is needed in order to optimize the IEQh model.
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