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J Korean Soc Environ Eng > Volume 38(8); 2016 > Article
J Korean Soc Environ Eng 2016;38(8): 459-467. doi: https://doi.org/10.4491/KSEE.2016.38.8.459
기기 중성자방사화 분석을 이용한 대전 지하철 객차 내 PM10과 미량성분의 특성
정진희1, 임종명2, 이진홍1
1충남대학교 환경공학과
2한국원자력연구원 환경방사능평가팀
PM10 and Associated Trace Elements in the Subway Cabin of Daejeon by Instrumental Neutron Activation Analysis
Jin Hee Jeong1, Jong Myoung Lim2, Jin-Hong Lee1
1Department of Environmental Engineering, Chungnam National University
2Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute
Corresponding author  Jin-Hong Lee ,Tel: 042-823-7546, Fax: 042-822-5610, Email: jinlee@cnu.ac.kr
Received: May 12, 2016;  Revised: July 12, 2016;  Accepted: August 1, 2016.  Published online: August 31, 2016.
In order to assess the pollution status and distribution characteristics of PM and PM-bound species, PM10 samples were collected using mini-volume air sampler at the subway cabin in Daejeon city. Measurements of about 24 elements including toxic metals (e.g., As, Cr, Mn, V, Zn) in PM10 were made by instrumental neutron activation analysis and X-ray fluorescence. The average PM10 concentration was 59.3 ± 14.5 µg/m3 in the subway cabin with a range of 42.2 to 97.4 µg/m3, while the associated elemental concentrations were varied in the range of 10-3 to 105 ng/m3. It was found that the concentration of Fe (12.5 µg/m3) was substantially higher than any other element. The Fe concentration was apportioned by about 20% of the PM10 concentration. The results of factor analysis indicate that there are no more than six sources in the cabin (e.g., brake-nonferrous metal particle, resuspended rail dust, fuel combustion, vehicle exhaust, black carbon, Cr-related).
Key Words: PM10, Trace Elements, Subway Cabin, Indoor Air Quality, Instrumental Neutron Activation Analysis
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