Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Risk Assessment of Nitrogen Dioxide for Hematological and Biochemical Parameter in Mice

Mice를 이용한 혈액 및 생화학적 특성에 대한 Nitrogen Dioxide의 위해성 평가

  • Jeong, Seong-Wook (School of Environmental Science and Engineering/Life Environmental Institute, Inje University) ;
  • Han, Yong-Soo (Department of Skin & Beauty Gwangyang Health College) ;
  • Park, Heung-Jai (School of Environmental Science and Engineering/Life Environmental Institute, Inje University)
  • 정성욱 (인제대학교 환경공학부/생명환경연구소) ;
  • 한용수 (광양보건대학 피부미용과) ;
  • 박흥재 (인제대학교 환경공학부/생명환경연구소)
  • Published : 2007.05.30
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Abstract

In this study, we evaluated the property change and relationship between hematological and biochemical parameters in exposure group and control group by multiple inhalation exposure, of $NO_2$. In case of leukocyte, change of hematological property increased significantly in statistics (p<0.05) in mice experiment. in case of hematocrit of exposure group, it was of decreased significantly in statistics. the tendency of hemoglobin and hematocrit was similar to all for three case. in case of methmoglobin that of the exposure group in mice experiment was meaning increased(p<0.05). For the $NO_2$ influence in biochemical property, total protein and triglyceride was decreased but not significant in statistics, albumin was decreased in the exposure group in the animal experiments, blood urea nitrogen and creatinine increased significantly in statistics in the animal experiments. uric acid and lactate dehydrogenase in serum increased significantly in the exposure group. We have to evaluate risk assessment for the $NO_2$ of indoor air pollutant in low concentration and long time.

본 연구에서는 실험동물을 이용하여, $NO_2$의 반복적으로 폭로($0.025mg/m^3$, 8h/day /4 weeks)하여, 실험군 및 대조군에서의 혈액학 및 생화학적 요인들의 변화와 상관성을 평가하였 였으며, 그 결과를 요약하면 다음과 같다. $NO_2$의 흡입 폭로로 인한 혈액학적 요인의 변화는 백혈구의 경우 동물실험에서의 폭로군에서 통계적으로 유의하게 증가하였다(p<0.05). hematocrit의 경우 폭로군에서 통계적으로 유의하게 감소하는 경향을 나타내었다. 또한 hemoglobin과 hematocrit는 전혈 중에서 적혈구의 비율을 나타내는 것이므로 3가지 종류 모두 유사한 경향을 나타내었다. methemoglobin의 경우 동물실험에서 폭로군에서 유의하게 증가하였다(p<0.05). 생화학적 요인에 대한 $NO_2$의 영향은 동물실험에서 total protein과 triglyceride이 동물 실험에서의 폭로군에서 감소하였으나 통계적으로 유의하지는 않았다. albumin이 폭로군에서 감소하였고, blood urea nitrogen과 creatinine의 경우 폭로군에서 높은 경향으로 나타났다. uric acid 및 혈청 중 lactate dehydrogenase의 경우 폭로군이 대조군 보다 높은 농도를 나타내어 $NO_2$의 폭로에 의해 호흡기 조직세포 내 이상을 일으킨 것으로 판단된다. 따라서 실내오염물질 중 산화가스의 하나인 $NO_2$에 대한 위해성 평가는 저농도에서의 폭로연구가 장기적이고 지속적으로 이루어져야 할 것으로 사료된다.

Keywords

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