전자현미경을 이용한 건물내 비고형 표면자재의 석면 오염 및 기중 석면농도 특성조사

전자현미경을 이용한 건물내 비고형 표면자재의 석면 오염 및 기중 석면농도 특성조사

Characterization of Asbestos Content in Friable Sprayed-on Surface Material and Airborne Asbestos Concentrations in Buildings by TEM

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저자 유성환, 김현욱

학술지정보 한국산업보건학회지 KCI

발행정보 한국산업보건학회 1996년

자료제공처 KISTI 의학연구정보센터 한국학술정보

주제분야 공학 > 환경공학 , 의약학 > 보건학 , 의약학 > 직업환경의학

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<초록>

Fourteen(14) large commercial buildings located in Seoul with friable sprayed-on surface insulation material on ceiling were investigated for fiber types in bulk material and for airborne fiber concentrations in buildings by transmission electron microscopy (TEM) in order to compare the results with those by polarized light microscopy (PLM) and phase contrast microscopy (PCM). The results were as follows: 1. Chrysotile asbestos was found in one bulk sample out of total 14 bulk samples collected. Glass fiber and mineral wool were the two major constituents of the bulk samples. 2. The Na-Mg-Si-Ca-Fe-Al ratios of the EDX spectra which were normalized with the Si peak were 0-1.0-10-8.3-4.0-4.0 in mineral wool and 0-5-10-21-0-0 in chrysotile asbestos, respectively. 3. Airborne fiber concentrations were log-normalcy distributed and the geometric mean (geometric standard deviation) fiber concentrations by TEM in the underground parking lots and inside buildings were 0.0048 f/cc(1.93) and 0.0040 f/cc(2.27), respectively with no statistical difference. In the outdoor ambient air, statistically significantly lower concentration of 0.0018 f/cc(2.04) was measured. 4. The TEM/PCM ratios of airborne fiber concentrations ranged 0.5 - 2.0 for 80 % of airborne samples analyzed, end the regression equation between TEM and PCM was PCM=-0.2724+1.1355(TEM) with the coefficient of determination $R^2=0.52$. The results of this study confirmed that the sprayed-on surface insulation material found in some commercial buildings may possibly be contaminated with asbestos fiber. Since statistically significant relationship of fiber concentrations measured by PCM and TEM inside buildings and ambient air was found, previous results by PCM in ambient air could be used to estimate the ambient fiber concentrations in knowing the ratio of TEM/PCM.

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저희 (주)한국녹색인증원은 '지속가능한 저탄소 녹색건축인증 기술연구소'의 전문기업으로 설립되어, 빠른 제도 변화와 변모하는 건설환경에 이바지하고자 합니다. (주)한국녹색인증원은 건축, 도시, 생태분야가 녹색건축물에 접목될 수 있도록 적절한 요소분석을 통해 에너지 절감형 건축, 자생적 생태환경, 온열환경, 빛환경의 면밀한 조사와 연구로 고객의 삶의 질 향상 및 더 나아가 인류의 존속성에 그 목적을 두고 있습니다. 한국녹색인증원은 친환경컨설팅 전문업체로 주택성능등급, 그린홈, 에너지소비총량제, 에너지성능지표검토서, 건물에너지효율등급, 장수명주택