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초록·키워드 목차

Recently, a real-time, pocket-sized aethalometer (microAeth<SUP>®</SUP> model AE51) has been developed by Magee Scientific Inc. for measuring the concentration of black carbon in the atmosphere. In this study, two aethalometers, models AE-16 and AE-51, which measure the optical absorption of carbon particles at infrared 880 nm, were operated at time interval of 5-min between January 9 and February 10, 2010 at an urban site of Gwangju, to compare the accuracy of black carbon (BC) concentrations reported from the AE-51 model and to investigate reasonable sampling time of filter media in the AE-51. The air samples in the AE-51 and AE-16 models are collected on T60 (Teflon coated glass fiber) filter media (filter spot area: 0.07 ㎠) and quartz fiber roll-tape filter (filter spot area: 1.67 ㎠), respectively. Real-time measurement results indicate that when the filters were clean, the AE-51 BC was greater than or similar to the AE-16 BC data. However as the filter spots become darker, the AE-16 BC concentrations were higher than the AE-51 BC data and the difference in the BC concentrations from two AE models becomes gradually increased. Relative error in the AE-51 and AE-16 BC concentrations showed significance difference depending on used time of the filter in the AE-51 model, weather pattern, levels of air pollution, etc, ranging from 11.5% (used time of the filter in AE-51: 1,595 min) to 52.5% (used time of the filter in AE-51: 2,085 min). When considering the used time of one filter ticket in the AE-51 model and difference (or relative error %) between AE-16 and AE-51 BC concentrations, it is recommended that the standard sampling time per one filter ticket within the AE-51 model be less than approximately 24 hr (1,440 min) under the normal weather conditions except for severe haze and mist events. #Aethalometer #Pocket-sized aethalomter #Black carbon #Particle shadowing effect

Abstract
1. 서론
2. 연구방법
3. 결과 및 고찰
4. 결론
감사의 글
참고문헌

[학술저널]

대기 에어로졸 검댕입자 측정을 위한 두 aethalometer의 상호비교

[학술저널]

대기 에어로졸 검댕입자 측정을 위한 두 aethalometer의 상호비교

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