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苯乙烯对呼吸道粘膜刺激引起损害的研究甚少。本文用大鼠反复暴露苯乙烯用电子显微镜探讨呼吸道粘膜的损害。选用生后26周SD系的雄性大鼠30只,分为对照组、低浓度组(约30ppm)、高浓度组(约800ppm),在暴露装置内每天暴露4小时持续8周。暴露时间以外装入饲养笼内。用气相色谱仪测定苯乙烯浓度。停止暴露3周后,处死大鼠,取出气管和鼻中膈作为电镜标本。观察部位:鼻中膈是中央
Little research has been done on the damage caused by respiratory irritation caused by styrene. In this paper, repeated exposing to styrene in rats using electron microscopy to explore the damage of respiratory mucosa. Thirty male SD rats at 26 weeks after birth were divided into control group, low concentration group (about 30ppm), high concentration group (about 800ppm) and exposed daily for 4 hours in the exposure device for 8 weeks. Outside the exposure time into the cage. Determination of styrene concentration by gas chromatography. Three weeks after stopping the exposure, the rats were sacrificed and the trachea and nasal septum removed for electron microscopy. Observation site: nasal septum is the central