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Comparative Evaluation of Gravimetric Measurement Methods for Suspended Particles in Indoor and Outdoor Air  

백성옥 (영남대학교 토목도시환경공학부 대기환경연구실)
박지혜 (영남대학교 토목도시환경공학부 대기환경연구실)
서영교 (영남대학교 토목도시환경공학부 대기환경연구실)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.18, no.4, 2002 , pp. 285-295 More about this Journal
Abstract
In this study, several types of gravimetric methods (such as high, medium, low, and ultra low volume sampling methods) were applied to determine suspended particulate matter concentrations in both ambient and indoor environments. Comparative evaluations were undertaken with SPM data obtained using a variety of samplers (TSP, PM10, and PM4.0) at different sampling flow rates. Correlation coefficients between TSP and PM10 concentrations measured at different flow rates fell in the range of 0.73∼0.94 (n=40). In addition, correlation coefficients for PM concentrations measured by different TSP samplers were in the range of 0.90∼0.95 (n=36 or n=38), while 0.77∼0.91 (n=38) for PM10 samplers. Correlation analysis was also conducted on indoor monitoring data that were measured using ultra-low-volume samplers at both different or identical flow rates. The correlation coefficients were in the range of 0.98∼0.99 (n=38) between TSP and TSP and 0.92∼0.94 (n=38) between TSP and PM10. The mean ratio for high volume PM10 to TSP concentration that was monitored at identical flow rates in the ambient air appeared to be 0.72. The mean ratios of PM10 to TSP and PM4.0 to TSP observed with identical flow rates at indoor environments were 0.47 and 0.40. The results of this study may provide empirical information concerning the compatability of aerosol data obtained by gravimetric sampling methods at different flow rates.
Keywords
SPM; TSP; PM10; PM4.0; Air monitoring; Gravimetric sampling methods;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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