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A Study on Toxicity Bio-markers of a Mouse using Combustion Gas SO2 generated from Fire

마우스(mouse)를 이용한 건축물 마감재료 연소가스 SO2의 독성생체지표 연구

  • Rie, Dong-Ho (Fire Disaster Protection Research Center, University of Incheon) ;
  • Cho, Nam-Wook (korea Institute of Construction Technology(KICT)) ;
  • Choi, Soon-Young (Fire Disaster Protection Research Center, University of Incheon)
  • 이동호 (인천대학교 소방방재연구센터) ;
  • 조남욱 (한국건설기술연구원) ;
  • 최순영 (인천대학교 소방방재연구센터)
  • Received : 2012.01.20
  • Accepted : 2012.03.16
  • Published : 2012.03.31

Abstract

This study was carried out to observe the impacts of a mouse's inhalation of toxic gas SO2 generated from combustion on its organs by different concentrations. As for research methods: First, after concentrations of SO2 generation from combustion had been set to three: low (10.4 ppm), middle (24.9 ppm) and high (122 ppm) through Gas Toxicity Testing Method (KS F 2271) and SO2 combustion gas was exposed to eight mice in each concentration. Five mice that were able to move based on LD50, a criterion, which sets the down time of a mouse's average behaviors to over 9 minutes, were randomly selected in each concentration, and they were set up as the subjects of the study on toxicity bio-markers. Second, tissues were taken from heart, liver, lungs, spleen and the thymus gland of the mice selected in each concentration and a pathological examination of them was carried out. As a result, microvascular congestion appeared in the heart, and cell necrosis, cortex congestion and tubule medulla congestion, etc. in each concentration were observed in addition to vascular congestion in liver, lungs, spleen and the thymus gland. Also, it was found that the higher the concentrations of SO2 exposure is, the greater, the changes in the organs get. Through this study, SO2 of various toxic gases generated from fire turned out to affect the tissues of each organ of a mouse, it is expected that the toxic gases may greatly affect human body in case of actual fire, and this study is evaluated as having a significance as a basic data on inhalation toxicity assessment of toxic substances generated in combustion.

Keywords

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