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http://dx.doi.org/10.4491/KSEE.2013.35.9.613

A Study on Characteristics of Airborne Asbestos Concentrations Using PCM and TEM in Life Environment Surroundings of Seoul  

Lee, Jinhyo (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Lee, Suhyun (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Kim, Jihui (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Oh, Seokryul (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Shin, Jinho (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Eom, Seokwon (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Chae, Youngzoo (Seoul Metropolitan Government Research Institute of Public Health and Environment)
Lee, Jinsook (Institute of Public Health and Environment, Incheon Metropolitan City)
Koo, Jayong (Department of Environmental Engineering, University of Seoul)
Publication Information
Journal of Korean Society of Environmental Engineers / v.35, no.9, 2013 , pp. 613-623 More about this Journal
Abstract
This study is purposed to evaluate the airborne asbestos concentrations in life environment surroundings in Seoul. In study, we investigated airborne asbestos concentrations in thirteen subway stations, four monitoring networks and each vicinity roadside, six stream surroundings, four tunnels quarterly and we also investigated relationship between the airborne asbestos concentrations and ambient temperature in monitoring networks and time-based airborne asbestos concentration variability for two typical monitoring networks, two subway stations transferred and used by lots of people through Phase Contrast Microscopy (PCM) and Transmission Electron Microscopy (TEM). The airborne asbestos concentrations by PCM for 4 objects of study were less than the detection limit (7 fiber/$mm^2$) in 111 (50%) out of 223 samples. The highest concentration was 0.0130 f/cc. But additional TEM analysis result for samples exceeding the guideline value for indoor air quality (0.01 f/cc) proposed by the Ministry of Environment (Korea), no asbestos was detected. Similarly TEM analysis result for 124 samples, no asbestos was detected. The average airborne asbestos concentrations by PCM in subway stations, monitoring networks, streams and tunnels were $0.0041{\pm}0.0027$ f/cc, $0.0015{\pm}0.0011$ f/cc, $0.0024{\pm}0.0012$ f/cc and $0.0016{\pm}0.0020$ f/cc. All objects of study were satisfied with the guideline value for indoor air quality. The relationship between the airborne asbestos concentrations and ambient temperature in monitoring networks was generally positive correlation (r = 0.660). The higher ambient temperature was and the more transient population was, the airborne asbestos concentrations by time for two subway stations were increased. While the airborne asbestos concentrations for two monitoring networks showed no variation pattern according to time.
Keywords
Asbestos Distribution Characteristics; Life Environment; PCM; TEM;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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