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논문 기본 정보

자료유형
학술저널
저자정보
류준호 (랩코) 정시원 (랩코) 김광련 (랩코) 박후경 (서울시보건환경연구원) 박승식 (전남대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제38권 제3호
발행연도
2022.6
수록면
341 - 353 (13page)
DOI
10.5572/KOSAE.2022.38.3.341

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초록· 키워드

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Attention has been attracted to low-cost light-scattering based dust monitors (LSMs) to conduct exposure assessment and measure continuously the concentrations of ambient PM<SUB>10</SUB> and PM<SUB>2.5</SUB>. However, by a lack of calibration on these LSMs, their accuracy and reliability are often unknown which limit their application in scientific research. In the LSM, the particle number concentration is counted and then transferred to mass concentration as the output. The measurements of particles by light scattering method, however, are often affected by factors such as the high relative humidity, particle size distribution, and chemical composition. In this study, referenced-channel calibration method was applied to improve their accuracy and precision among the light-scattering PM<SUB>2.5</SUB> monitors. In comparison with the β-gauge monitor, better accuracy and correlation (R²) were obtained in PM<SUB>2.5</SUB> concentrations observed with LSM applied with referenced-channel calibration method (“NEW LSM”) than those from conventional LSM. In addition, the relative precision of PM<SUB>2.5</SUB> measurements among three LSMs was found to be excellent in the NEW LSMs (0.1~14.5%), rather than in the conventional LSMs (0.2~27.2%). Results from this study suggest that high quality PM<SUB>2.5</SUB> data measured by newly-upgraded LSMs will effectively be utilized in predicting future PM<SUB>2.5</SUB> concentrations in urban areas. However, a long-term study is required to improve the reproducibility and accuracy of the PM<SUB>2.5</SUB> measurements made by the light-scattering based dust monitors applied with the referenced-channel calibration technology in the future.

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Abstract
1. 서론
2. 실험 방법
3. 결과 및 고찰
4. 요약 및 결론
References

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